Controls –
Solid-State
Switching Devices
4/2
Introduction
4/3
Solid-State Switching Devices
General data
4/6
4/7
4/13
4/17
4/22
4/23
4/31
4/40
4/42
4/43
4/44
4/45
4/46
4/47
Solid-State Relays
General data
3RF21 solid-state relays,
single-phase, 22.5 mm
3RF20 solid-state relays,
single-phase, 45 mm
3RF22 solid-state relays,
3-phase, 45 mm
Solid-State Contactors
General data
3RF23 solid-state contactors,
single-phase
3RF24 solid-state contactors,
3-phase
3RF29 Function Modules
General data
Converters
Load monitoring
Heating current monitoring
Power control regulators
Power controllers
Project planning aids
Siemens LV 1 T · 2007
4
4
© Siemens AG 2007
© Siemens AG 2007
Controls — Solid-State Switching Devices
Introduction
■ Overview
3RF21
3RF20
3RF22
3RF23
3RF24
3RF29
Order No.
Page
• Compact and space-saving design
3RF21,
3RF20
4/7
4/13
• "Zero-point switching" version
3RF22
4/17
3RF23
4/23
3RF24
4/31
SIRIUS solid-state switching devices
Solid-state relays
4
Solid-state relays 22.5 mm,
Solid-state relays 45 mm
• Widths of 22.5 mm and 45 mm
• Mounting onto existing heat sinks
Solid-state contactors
Solid-state contactors
• Complete units comprising a solid-state relay and an optimized heat sink,
"ready to use"
• Compact and space-saving design
• Versions for resistive loads "zero-point switching"
and inductive loads "instantaneous switching"
• Special versions "low noise" and "short-circuit resistant"
Function modules
For extending the functionality of the 3RF21 solid-state relays and the 3RF23
solid-state contactors for many different applications:
Converters
• For converting an analog input signal into an on/off ratio;
can also be used on 3RF22 and 3RF24 3-phase switchgear
3RF29 00-0EA18
4/42
Load monitoring
• For load monitoring of one or more loads (partial loads)
3RF29 20-0FA08,
3RF29 .0-0GA..
4/43
Heating current monitoring
• For load monitoring of one or more loads (partial loads);
remote teach
3RF29 ..-0JA..
4/44
Power control regulators
• For supplying the current by means of a solid-state switching device
depending on a setpoint value.
There is a choice of full-wave control and generalized phase control.
3RF29 ..-0KA.
4/45
Power controllers
• For supplying the current by means of a solid-state switching device
depending on a setpoint value.
Closed-loop control: Full-wave control or generalized phase control
3RF29 .0-0HA..
4/46
4/2
Siemens LV 1 T · 2007
© Siemens AG 2007
Solid-State Switching Devices
General data
■ Overview
Proved time and again in service
SIRIUS solid-state switching devices have become firmly
established in industrial applications. They are used above all in
applications where loads are switched frequently – mainly with
resistive load controllers, with the control of electrical heat or the
control of valves and motors in conveyor systems. In addition to
its use in areas with high switching frequencies, its silent
switching means that SIRIUS is also ideally suited for use in
noise-sensitive areas, such as offices or hospitals.
SIRIUS solid-state switching devices
• Solid-state relays
• Solid-state contactors
• Function modules
SIRIUS – for almost unending activity
Conventional electromechanical switching devices are often
overtaxed by the rise in the number of switching operations.
A high switching frequency results in frequent failure and short
replacement cycles. However, this does not have to be the case,
because with the latest generation of our SIRIUS solid-state
switching devices we provide you with solid-state relays and
contactors with a particularly long endurance - for almost
unending activity even under the toughest conditions and under
high mechanical load, but also in noise-sensitive areas.
Compared to mechanical switchgear, our SIRIUS solid-state
switching devices stand out due to their considerably longer
service life. Thanks to the high product quality, their switching is
extremely precise, reliable and above all insusceptible to faults.
With its variable connection methods and a wide spread of
control voltages, the SIRIUS family is universally applicable.
Depending on the individual requirements of the application, our
modular switching devices can also be quite easily expanded
by the addition of standardized function modules.
Always on the sunny side with SIRIUS
Because SIRIUS offers even more:
• The space-saving and compact side-by-side mounting
ensures reliable operation up to an ambient temperature of
+60 °C.
• Thanks to fast configuration and the ease of mounting and
start-up, you save not only time but also expenses.
Siemens LV 1 T · 2007
4/3
4
The most reliable solution for any application
© Siemens AG 2007
Solid-State Switching Devices
General data
Type
Solid-state relays
1-phase
Solid-state contactors Function modules
3-phase
1-phase
3-phase
22.5 mm
45 mm
45 mm
Simple use of
existing solid-state
relays
❑
✓
❑
❑
❑
Complete unit
"Ready to use"
❑
❑
❑
✓
✓
Converters Load monitoring
Basic
Extended
Heating
Power
Power
current
control
controllers
monitoring regulators
--
--
--
--
--
--
--
--
--
--
--
--
4
Usage
Space-saving
✓
--
✓
✓
✓
✓
✓
--
--
--
--
Can be extended
with modular
function modules
✓
--
✓
✓
✓
--
--
--
--
--
--
Frequent switching -and monitoring of
loads and solid-state
relays/solid-state
contactors
--
--
--
--
--
✓
✓
✓
✓
✓
Monitoring of up to
6 partial loads
--
--
--
--
--
--
✓
--
✓
✓
--
Monitoring of more
than 6 partial loads
--
--
--
--
--
--
--
✓
--
--
--
Control of the heating -power through an
analog input
--
--
--
--
✓
--
--
--
✓
✓
Power control
--
--
--
--
--
--
--
--
--
--
✓
Easy setting of
-setpoint values with
"Teach" button
--
--
--
--
--
✓
✓
--
✓
✓
"Remote Teach"
input for setting
setpoints
--
--
--
--
--
--
--
--
✓
--
--
Mounting onto
mounting rails or
mounting plates
--
--
--
✓
✓
--
--
--
--
--
--
Can be snapped
directly onto a
solid-state relay or
contactor
--
--
--
--
--
✓
✓
✓
✓
✓
✓
For use with
✓
"Coolplate" heat sink
✓
✓
--
--
--
--
--
--
--
--
Startup
Mounting
Cable routing
Connection of load
circuit as for
controlgear
✓
--
✓
✓
✓
--
✓
✓
✓
✓
✓
Connection of load
circuit from above
--
✓
--
--
--
--
--
--
--
--
--
✓ Function is available
❑ Function is possible
4/4
Siemens LV 1 T · 2007
© Siemens AG 2007
Solid-State Switching Devices
General data
There is no typical design of a load feeder with solid-state relays
or solid-state contactors; instead, the great variety of connection
methods and control voltages offers universal application
opportunities. SIRIUS solid-state relays and solid-state
contactors can be installed in fuseless or fused feeders, as
required. There are special versions with which it is even
possible to achieve short-circuit strength in a fuseless design.
■ Function
Connection methods
All SIRIUS solid-state switching devices are characterized by
the great variance of connection methods. You can choose
between the following connection methods:
Screw connection system
The screw connection system is the standard among industrial
controls. Open terminals and a plus-minus screw are just two
features of this technology. Two conductors of up to 6 mm² can
be connected in just one terminal. As a result, loads of up to 50 A
can be connected.
Spring-loaded terminal connection system
This innovative technology manages without any screw
connection. This means that very high vibration resistance is
achieved. Two conductors of up to 2.5 mm² can be connected
to each terminal. As a result, loads of up to 20 A can be dealt
with.
Ring terminal lug connection
The ring terminal lug connection is equipped with an M5 screw.
Ring terminal lugs of up to 25 mm² can be connected. In this way
it is possible to connect even high powers with current strengths
of up to 90 A safely. Finger-safety is provided in this case too with
a special cover.
Switching functions
In order to guarantee an optimized control method for different
loads, the functionality of our solid-state switching devices can
be adapted accordingly.
The "zero-point switching" method has proved to be ideal for
resistive loads, i.e. where the power semiconductor is activated
at zero voltage.
For inductive loads, on the other hand, for example in the case
of valves, it is better to go with "instantaneous switching".
By distributing the ON point over the entire sine curve of the
mains voltage, disturbances are reduced to a minimum.
Performance characteristics
The performance of the solid-state switching devices is substantially determined by the type of power semiconductors used and
the internal design. In the case of the SIRIUS solid-state contactors and solid-state relays, only thyristors are used in place of
less powerful Triacs.
Two of the most important features of thyristors are the blocking
voltage and the maximum load integral:
Blocking voltage
Thyristors with a high blocking voltage can also be operated
without difficulty in networks with high interference voltages.
Separate protective measures, such as a protective circuit with
a varistor, are not necessary in most cases.
Maximum load integral
One of the purposes of specifying the maximum load integral
(I²t) is to determine the rating of the short-circuit protection. Only
a large power semiconductor with a correspondingly high I²t
value can be given appropriate protection against destruction
from a short-circuit by means of a protective device matched to
the application. However, the devices are also characterized by
the optimum matching of the thyristors (I²t value) with the rated
currents. The rated currents specified on the devices according
to EN 60947-4-3 were confirmed by extensive testing.
You can find more information on the Internet at:
http://www.siemens.de/halbleiterschaltgeraete
■ Integration
Notes on integration in the load feeders
The SIRIUS solid-state switching devices are very easy to
integrate into the load feeders thanks to their industrial
connection method and design.
4
■ Design
Particular attention must however be paid to the circumstances
of the installation and ambient conditions, as the performance of
the solid-state switching devices is largely dependent on these.
Depending on the version, certain restrictions must be observed.
Detailed information, for example in relation to solid-state contactors about the minimum spacing and to solid-state relays
about the choice of heat sink, is given in the technical specifications and the product data sheets.
Despite the rugged power semiconductors that are used,
solid-state switching devices respond more sensitively to shortcircuits in the load feeder. Consequently, special precautions
have to be taken against destruction, depending on the type of
design.
Siemens generally recommends using SITOR semiconductor
protection fuses. These fuses also provide protection against
destruction in the event of a short-circuit even when the solidstate contactors and solid-state relays are fully utilized.
Alternatively, if there is lower loading, protection can also be
provided by standard fuses or miniature circuit breakers. This
protection is achieved by overdimensioning the solid-state
switching devices accordingly. The technical specifications and
the product data sheets contain details both about the solidstate fuse protection itself and about use of the devices with
conventional protective equipment.
The SIRIUS solid-state switching devices are suitable for interference-free operation in industrial networks without further
measures. If they are used in public networks, it may be necessary for conducted interference to be reduced by means of
filters. This does not include the special solid-state contactors of
type 3RF23..-.CA.. "Low Noise". These comply with the class B
limit values up to a rated current of 16 A. If other versions are
used, and at currents of over 16 A, standard filters can be used
in order to comply with the limit values. The decisive factors
when it comes to selecting the filters are essentially the current
loading and the other parameters (operational voltage, design
type, etc.) in the load feeder.
Suitable filters can be ordered from EPCOS AG.
You can find more information on the Internet at:
http://www.epcos.com
For example, thyristors with 800 V blocking voltage are fitted in
the devices for operation in networks up to 230 V. Thyristors with
up to 1600 V are used for power systems with higher voltages.
Siemens LV 1 T · 2007
4/5
© Siemens AG 2007
Solid-State Relays
General data
■ Overview
■ Function
Solid-state relays
3-phase solid-state switching devices
SIRIUS solid-state relays are suitable for surface mounting on
existing cooling surfaces. Mounting is quick and easy, involving
just two screws. The special technology of the power semiconductor ensures there is excellent thermal contact with the heat
sink. Depending on the nature of the heat sink, the capacity
reaches up to 88 A on resistive loads.
Two-phase controlled version
The solid-state relays are available in three different versions:
• 3RF21 single-phase solid-state relays with a width of 22.5 mm,
• 3RF20 single-phase solid-state relays with a width of 45 mm,
• 3RF22 three-phase solid-state relays with a width of 45 mm.
Nevertheless, the 3-phase 3RF22 and 3RF24 solid-state switching devices permit all three phases to be connected to the
switching device, in which case the middle phase is looped directly through the device. Compared to a three-phase controlled
device, the lower power loss allows more compact installations.
The 3RF21 and 3RF22 solid-state relays can be expanded
with various function modules to adapt them to individual
applications.
4
Version for resistive loads, "zero-point switching"
This standard version is often used for switching space heaters
on and off.
A three-phase control system is not required for many threephase current applications. Loads in a delta circuit or star circuit
which have no connection to the neutral conductor can also be
safely switched on and off using just two phases.
Three-phase controlled version
This version is used for three-phase current applications in
which the system requires all phases to be switched on and off,
or for loads in a star circuit with connection to the neutral
conductor.
■ Configuration
Version for inductive loads, "instantaneous switching"
Selecting solid-state relays
In this version the solid-state relay is specifically matched to
inductive loads. Whether it is a matter of frequent actuation of the
valves in a filling plant or starting and stopping small operating
mechanisms in packet distribution systems, operation is carried
out safely and noiselessly.
When selecting solid-state relays, in addition to information about
the network, the load and the ambient conditions it is also necessary to know details of the planned design. The solid-state relays
can only conform to their specific technical specifications if they
are mounted with appropriate care on an adequately dimensioned
heat sink.
Single-phase solid-state relay with a width of 22.5 mm
With its compact design, which stays the same even at currents
of up to 88 A, the 3RF21 solid-state relay is the ultimate in spacesaving construction, at a width of 22.5 mm. The logical
connection method, with the power infeed from above and load
connection from below, ensures tidy installation in the control
cabinet.
Single-phase solid-state relay with a width of 45 mm
The solid-state relays with a width of 45 mm provide for
connection of the power supply lead and the load from above.
This makes it easy to replace existing solid-state relays in
existing arrangements. The connection of the control cable also
saves space in much the same way as the 22.5 mm design, as
it is simply plugged on.
Three-phase solid-state relay with a width of 45 mm
With its compact design, which stays the same even at currents
of up to 55 A, the 3RF22 solid-state relay is the ultimate in spacesaving construction, at a width of 45 mm. The logical connection
method, with the power infeed from above and load connection
from below, ensures tidy installation in the control cabinet.
The three-phase solid-state relays are available with
• Two-phase control and
• Three-phase control.
4/6
Siemens LV 1 T · 2007
The following procedure is recommended:
• Determine the rated current of the load and the mains voltage
• Select the relay design and choose a solid-state relay with
higher rated current than the load
• Determine the thermal resistance of the proposed heat sink
• Check the correct relay size with the aid of the diagrams
You can find more information on the Internet at:
http://www.siemens.de/halbleiterschaltgeraete
© Siemens AG 2007
Solid-State Relays
3RF21 solid-state relays, single-phase, 22.5 mm
■ Overview
22.5 mm solid-state relays
With its compact design, which stays the same even at currents
of up to 88 A, the 3RF21 solid-state relay is the ultimate in spacesaving construction, at a width of 22.5 mm. The logical connection method, with the power infeed from above and connection
of the load from below, ensures tidy installation in the control
cabinet.
■ Technical specifications
Type
3RF21 ..-1....
3RF21 ..-2....
3RF21 ..-3....
General data
• During operation, derating from 40 °C
°C
-25 ... +60
• During storage
°C
-55 ... +80
Installation altitude
m
0 ... 1000; derating from 1000
Shock resistance
According to IEC 60068-2-27
g/ms
15/11
Vibration resistance
According to IEC 60068-2-6
g
2
4
Ambient temperature
IP20
Degree of protection
Electromagnetic compatibility (EMC)
• Emitted interference
- Conducted interference voltage
according to IEC 60947-4-3
- Emitted, high-frequency interference
voltage according to IEC 60947-4-3
• Interference immunity
- Electrostatic discharge
according to IEC 61000-4-2
(corresponds to degree of severity 3)
- Induced RF fields
according to IEC 61000-4-6
- Burst according to IEC 61000-4-4
- Surge according to IEC 61000-4-5
Class A for industrial applications
Class A for industrial applications
kV
Contact discharge 4; air discharge 8; behavior criterion 2
MHz
0.15 ... 80; 140 dBµV; behavior criterion 1
kV
kV
2/5.0 kHz; behavior criterion 1
Conductor - ground 2; conductor - conductor 1; behavior criterion 2
Connection type
Screw connections
Spring-loaded terminal
connections
Ring cable connections
2 x (1.5 ... 2.5)1), 2 x (2.5 ... 6)1)
2 x (1 ... 2.5)1), 2 x (2.5 ... 6)1),
1 x 10
2 x (AWG 14 ... 10)
2 x (0.5 ... 2.5)
2 x (0.5 ... 1.5)
---
2 x (0.5 ... 2.5)
2 x (AWG 18 ... 14)
---
M4
--
M5
2 ... 2.5
7 ... 10.3
---
2.5 ... 2
10.3 ... 7
--
--
--
--
DIN 46234 -5-2.5, -5-6, -5-10,
-5-16, -5-25
JIS C 2805 R 2-5, 5.5-5, 8-5, 14-5
Connection, main contacts
• Conductor cross-section
- Solid
- Finely stranded with end sleeve
- Finely stranded without end sleeve
- Solid or stranded, AWG conductors
mm2
mm2
mm2
• Terminal screw
• Tightening torque
NM
lb. in
• Cable lug
- DIN
- JIS
Connection, auxiliary/control contacts
• Conductor cross-section
mm
AWG
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
20 ... 12
0.5 ... 2.5
20 ... 12
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
20 ... 12
• Stripped length
mm
7
10
7
M3
--
M3
0.5 ... 0.6
4.5 ... 5.3
---
0.5 ... 0.6
4.5 ... 5.3
• Terminal screw
• Tightening torque
1)
NM
lb. in
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical
cross-sections are used, this restriction does not apply.
Siemens LV 1 T · 2007
4/7
© Siemens AG 2007
Solid-State Relays
3RF21 solid-state relays, single-phase, 22.5 mm
Imax 1)
Type
Ie according to UL/CSA Power loss
at Imax
at Rthha/Tu = 50 °C
Minimum load
current
Leakage current
at Rthha/Tu = 40 °C
Ie according to
IEC 60947-4-3
at Rthha/Tu = 40 °C
A
K/W
A
K/W
A
K/W
W
A
mA
3RF21 20-.....
20
2.0
20
1.7
20
1.3
28.6
0.1
10
3RF21 30-1....
30
1.1
30
0.79
30
0.56
44.2
0.5
10
3RF21 50-1....
3RF21 50-2....
3RF21 50-3....
50
50
50
0.68
0.68
0.68
50
20
50
0.48
2.6
0.48
50
20
50
0.33
2.9
0.33
66
66
66
0.5
0.5
0.5
10
10
10
3RF21 70-1....
70
0.40
50
0.77
50
0.6
94
0.5
10
3RF21 90-1....
3RF21 90-2....
3RF21 90-3....
88
88
88
0.33
0.33
0.33
50
20
88
0.94
2.8
0.22
50
20
83
0.85
3.5
0.19
118
118
118
0.5
0.5
0.5
10
10
10
Main circuit
Note: The rate currents and Imax do not provide information
about the full performance of the solid-state relay. The required
heat sinks for the corresponding load currents can be
determined from the characteristic curves, page 4/10. The
minimum thickness values for the mounting surface must be
observed.
Imax provides information about the performance of the solid-state relay.
The actual permitted rated operational current Ie can be smaller
depending on the connection method and cooling conditions.
4
1)
Rated impulse withstand capacity Itsm
I2t value
A
A2s
3RF21 20-.....
200
200
3RF21 30-..A.2
3RF21 30-..A.4
3RF21 30-..A.6
300
300
400
450
450
800
3RF21 50-.....
600
1800
3RF21 70-..A.2
3RF21 70-..A.4
3RF21 70-..A.5
3RF21 70-..A.6
1200
1200
1200
1150
7200
7200
7200
6600
3RF21 90-.....
1150
6600
Type
Main circuit
Type
3RF21 ..-....2
3RF21 ..-....4
3RF21 ..-....5
3RF21 ..-....6
Main circuit
Rated operational voltage Ue
V
24 ... 230
48 ... 460
48 ... 600
48 ... 600
• Operating range
V
20 ... 253
40 ... 506
40 ... 660
40 ... 660
• Rated frequency
Hz
50/60 –10 %
Rated insulation voltage Ui
V
600
Blocking voltage
V
800
Rage of voltage rise
V/µs
1.000
Type
1.200
1.600
3RF21 ..-...0.
3RF21 ..-...2.
3RF21 ..-...4.
Control circuit
DC operation
AC operation
DC operation
Rated control supply voltage Us
V
24 according to EN 61131-2
110 ... 230
4 ... 30
Rated frequency
Of the control supply voltage
Hz
--
50/60
--
Rated control voltage Uc
V
30
253
30
Typical actuating current
mA
20
15
20
Response voltage
V
15
90
4
Drop-out voltage
V
5
40
1
• ON-delay
ms
1 + additional max. one half-wave1) 40 + additional max. one half-wave1) 1 + additional max. one half-wave1)
• OFF-delay
ms
1 + additional max. one half-wave 40 + additional max. one half-wave 1 + additional max. one half-wave
Method of operation
Operating times
1)
Only for zero-point-switching devices.
4/8
Siemens LV 1 T · 2007
© Siemens AG 2007
Solid-State Relays
3RF21 solid-state relays, single-phase, 22.5 mm
Fused version with semiconductor protection (similar to type of coordination "2")1)
Type
If a fuse is used with a higher rated current than specified,
semiconductor protection is no longer guaranteed. However,
smaller fuses with a lower rated current for the load can be used
without problems.
For protective devices with gG operational class and for SITOR
full range fuses 3NE1, the minimum cross-sections for the
conductor to be connected must be taken into account.
All-range fuse Semiconductor protection fuses
LV HRC
design
Cable and line protection fuses
Cylindrical design
LV HRC
design
Cylindrical design
DIAZED
LV HRC design
gR/SITOR
aR/SITOR
3NE1
3NE8
10 x 38 mm 14 x 51 mm 22 x 58 mm
aR/SITOR
aR/SITOR
aR/SITOR
gG
3NC1 0
3NC1 4
3NC2 2
3NA
10 x 38 mm 14 x 51 mm 22 x 58 mm
gG
gG
gG
Quick
3NW
3NW
3NW
5SB
3RF21 2.-....2
3RF21 2.-....4
3NE1 814-0
3NE1 813-0
3NE8 015-1
3NE8 015-1
3NC1 020
3NC1 016
3NC1 420
3NC1 420
3NC2 220
3NC2 220
3NA2 803
3NA2 801
3NW6 001-1 3NW6 101-1 --3NW6 101-1 --
5SB1 71
5SB1 41
3RF21 3.-....2
3RF21 3.-....4
3RF21 3.-....6
3NE1 815-0
3NE1 815-0
3NE1 815-0
3NE8 003-1
3NE8 003-1
3NE8 003-1
3NC1 032
3NC1 432
3NC1 0252) 3NC1 432
3NC1 032
3NC1 432
3NC2 232
3NC2 232
3NC2 232
3NA2 803
3NA2 803
3NA2 803-6
----
3NW6 103-1 -3NW6 101-1 ----
5SB311
5SB1 71
--
3RF21 5.-....2
3RF21 5.-....4
3RF21 5.-....6
3NE1 817-0
3NE1 802-0
3NE1 803-0
3NE8 017-1
3NE8 017-1
3NE8 017-1
----
3NC1 450
3NC1 450
3NC1 450
3NC2 250
3NC2 250
3NC2 250
3NA2 810
3NA2 807
3NA2 807-6
----
3NW6 107-1 3NW6 207-1 5SB3 21
-3NW6 205-1 5SB3 11
----
3RF21 7.-....23)
3RF21 7.-....43)
3RF21 7.-....53)
3RF21 7.-....63)
3NE1 820-0
3NE1 020-2
3NE1 020-2
3NE1 020-2
3NE8 020-1
3NE8 020-1
3NE8 020-1
3NE8 020-1
-----
-----
3NC2 280
3NC2 280
3NC2 280
3NC2 280
3NA2 817
3NA2 812
3NA2 812
3NA2 812-6
-----
-----
3NW6 217-1
3NW6 212-1
3NW6 212-1
--
3RF21 9.-....23)
3RF21 9.-....43)
3RF21 9.-....63)
3NE1 021-2
3NE1 021-2
3NE1 020-22)
3NE8 021-1
3NE8 021-1
3NE8 021-1
----
----
3NC2 200
3NA2 817
3NC2 2802) 3NA2 812
2)
3NC2 280
3NA2 812-6
----
----
3NW6 217-1 5SB3 31
3NW6 212-1 5SB3 21
---
5SB3 31
5SB3 21
5SB3 21
--
Suitable fuse holders, fuse bases and switchgear can be found
in Catalog LV 1, Chapter 19.
1)
Type of coordination "2" according to EN 60947-4-1:
In the event of a short-circuit, the controls in the load feeder must not
endanger persons or the installation. They must be suitable for further
operation. For fused configurations, the protective device must be
replaced.
2)
These fuses have a smaller rated current than the solid-state relays.
3)
These versions can also be protected against short-circuits with miniature
circuit breakers as described in the notes on "SIRIUS Solid-State
Contactors “ Special Version Short-Circuit Resistant".
Siemens LV 1 T · 2007
4/9
4
The semiconductor protection for the SIRIUS controls can be
used with different protective devices. This allows protection by
means of LV HRC fuses of gG operational class or miniature
circuit breakers. Siemens recommends the use of special SITOR
semiconductor fuses. The table below lists the maximum
permissible fuses for each SIRIUS control.
© Siemens AG 2007
Solid-State Relays
3RF21 solid-state relays, single-phase, 22.5 mm
■ Characteristic curves
Dependence of the device current Ie on the ambient temperature Ta
Min. thickness of the heat sink´s mounting plate
4 mm
Module power loss
35
in A
30
e
M
in W
40
R thha
1,3 K/W
25
1,6 K/W
2 K/W
20
2,5 K/W
3,2 K/W
15
4 K/W
5 K/W
10
0
2
10
6
14
Device current
e
18
0
22 24
6 K/W
NSB0_01453b
4
5
10
20
30
in A
40
50
Ambient temperature
8 K/W
12 K/W
60
a
in °C
Type current 20 A (3RF21 20, 3RF20 20)1)
Min. thickness of the heat sink´s mounting plate
60
in A
5 mm
in W
4 mm
M
e
50
R thha
0,65 K/W
Module power loss
40
0,85 K/W
1,1 K/W
30
1,5 K/W
2,1 K/W
20
3 K/W
4 K/W
10 14 18 22 26 30 34 36
6
Device current
e
0
5 K/W
NSB0_01454b
10
0
10
20
30
in A
40
10 K/W
60
50
Ambient temperature
7 K/W
a
in °C
Type current 30 A (3RF21 30, 3RF20 30)
Min. thickness of the heat sink´s mounting plate
4 mm
5 mm
8 mm
90
in A
in W
80
e
M
70
R thha
Module power loss
60
0,4 K/W
0,53 K/W
50
0,68 K/W
0,85 K/W
40
1,1 K/W
30
1,5 K/W
2 K/W
NSB0_01455b
20
10
0
5
15
25
Device current
35
e
45
55 60
0
in A
Type current 50 A (3RF21 50, 3RF20 50)
1)
For arrangement example see next page.
4/10
Siemens LV 1 T · 2007
10
20
30
40
50
Ambient temperature
60
a
in °C
3 K/W
5 K/W
10 K/W
© Siemens AG 2007
Solid-State Relays
3RF21 solid-state relays, single-phase, 22.5 mm
Min. thickness of the heat sink´s mounting plate
10 mm
120
in A
8 mm
in W
4 mm 5 mm
M
e
100
Module power loss
R thha
80
0,22 K/W
0,3 K/W
0,4 K/W
60
0,55 K/W
0,75 K/W
40
1 K/W
1,5 K/W
10
30
50
Device current
85
0
0
10
20
30
in A
40
50
Ambient temperature
3 K/W
5 K/W
60
a
in °C
4
e
70
2 K/W
NSB0_01456b
20
Type current 70 A (3RF21 70, 3RF20 70)
Min. thickness of the heat sink´s mounting plate
10 mm
120
in A
8 mm
in W
4 mm 5 mm
Module power loss
e
M
100
80
R thha
0,24 K/W
0,3 K/W
0,39 K/W
60
0,5 K/W
0,65 K/W
40
0,85 K/W
1,1 K/W
NSB0_01457b
20
0
10
30
Device current
50
e
70
90
0
10
20
in A
30
40
50
Ambient temperature
1,6 K/W
2,5 K/W
4 K/W
60
a
in °C
Type current 90 A (3RF21 90, 3RF20 90)
Arrangement example
Given conditions: Ie = 20 A and Ta = 40 C. The task is to find the
thermal resistance Rthha and the heat sink overtemperature dTha.
From the diagram on the left “ PM = 28 W,
from the diagram on the right “ Rthha = 2.0 K/W.
This results in:
dTha = Rthha × PM = 2.0 K/W × 28 W = 56 K.
At dTha = 56 K the heat sink must therefore have an
Rthha = 2.0 K/W.
Siemens LV 1 T · 2007
4/11
© Siemens AG 2007
Solid-State Relays
3RF21 solid-state relays, single-phase, 22.5 mm
■ Dimensional drawings
Solid-state relays
Screw terminal
3RF21 .0-1.A..
Ring terminal lug
3RF21 .0-3.A..
2 2 ,5
N S B 0 _ 0 1 4 3 3 a
3 1 ,5
Spring-loaded terminal
3RF21 .0-2.A..
6 9
1 4 ,5
1 2 ,5
4
1 4 ,5
2 1
2 5
8 5
4 7 ,5
6 9
4 ,5
4 8
3 5 ,5
1 3
1 2 ,5
Terminal cover
3RF29 00-3PA88
1 2
2 7 ,5
N S B 0 _ 0 1 4 7 2
2 9
3 6 ,5
3 7 ,5
2 2 ,5
■ Schematics
Version
DC control supply voltage
1
L
Version
AC control supply voltage
1
A1 +
L
2
A2
NSB0_01463
NSB0_01462
A2 -
T
A1
2
Switching example
L
N
PE
1/N/PE 50 Hz 230 V
F1
T
F2
S1
ON/OFF
K1
1
L
A1
A2
NSB0_01458
2
4/12
Siemens LV 1 T · 2007
T
R
© Siemens AG 2007
Solid-State Relays
3RF20 solid-state relays, single-phase, 45 mm
■ Overview
45 mm solid-state relays
The solid-state relays with a width of 45 mm provide for connection of the power supply lead and the load from above. This makes
it easy to replace existing solid-state relays in existing arrangements. The connection of the control cable also saves space in
much the same way as the 22.5 mm design, as it is simply
plugged on.
■ Technical specifications
Type
3RF20 ..-1....
3RF20 ..-4....
General data
• During operation, derating from 40 °C
°C
-25 ... +60
• During storage
°C
-55 ... +80
Installation altitude
m
0 ... 1000; derating from 1000
Shock resistance
According to IEC 60068-2-27
g/ms
15 /11
Vibration resistance
According to IEC 60068-2-6
g
2
4
Ambient temperature
IP20
Degree of protection
Electromagnetic compatibility (EMC)
• Emitted interference
- Conducted interference voltage
according to IEC 60947-4-3
- Emitted, high-frequency interference
voltage according to IEC 60947-4-3
• Interference immunity
- Electrostatic discharge
according to IEC 61000-4-2
(corresponds to degree of severity 3)
- Induced RF fields
according to IEC 61000-4-6
- Burst according to IEC 61000-4-4
- Surge according to IEC 61000-4-5
Class A for industrial applications
Class A for industrial applications
kV
Contact discharge 4; air discharge 8; behavior criterion 2
MHz
0.15 ... 80; 140 dBµV; behavior criterion 1
kV
kV
2/5.0 kHz; behavior criterion 1
Conductor - ground 2; conductor - conductor 1; behavior criterion 2
Connection type
Screw connections
Spring-loaded terminal connections
2 x (1.5 ... 2.5)1), 2 x (2.5 ... 6)1)
2 x (1 ... 2.5)1), 2 x (2.5 ... 6)1), 1 x 10
2x (AWG 14 ... 10)
----
Connection, main contacts
• Conductor cross-section
- Solid
- Finely stranded with end sleeve
- Solid or stranded, AWG conductors
mm2
mm2
• Terminal screw
M4
--
NM
lb. in
2 ... 2.5
7 ... 10.3
---
• Conductor cross-section
mm2
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0),
AWG 20 ... 12
0.5 ... 2.5,
AWG 20 ... 12
• Stripped length
mm
7
10
M3
--
0.5 ... 0.6
4.5 ... 5.3
---
• Tightening torque
Connection, auxiliary/control contacts
• Terminal screw
• Tightening torque
1)
NM
lb. in
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical
cross-sections are used, this restriction does not apply.
Siemens LV 1 T · 2007
4/13
© Siemens AG 2007
Solid-State Relays
3RF20 solid-state relays, single-phase, 45 mm
Imax1)
Type
Ie according to UL/CSA Power loss
at Imax
at Rthha/Tu = 50 °C
Minimum load
current
Leakage current
at Rthha/Tu = 40 °C
Ie according to
IEC 60947-4-3
at Rthha/Tu = 40 °C
A
K/W
A
K/W
A
K/W
W
A
mA
3RF20 20-1.A..
20
2.0
20
1.7
20
1.3
28.6
0.1
10
3RF20 30-1.A..
30
1.1
30
0.79
30
0.56
44.2
0.5
10
3RF20 50-1.A..
50
0.68
50
0.48
50
0.33
66
0.5
10
3RF20 70-1.A..
70
0.40
50
0.77
50
0.6
94
0.5
10
3RF20 90-1.A..
88
0.33
50
0.94
50
0.85
118
0.5
10
Main circuit
1)
Note: The rate currents and Imax do not provide information
about the full performance of the solid-state relay. The required
heat sinks for the corresponding load currents can be
determined from the characteristic curves, page 4/10. The
minimum thickness values for the mounting surface must be
observed.
Imax provides information about the performance of the solid-state relay.
The actual permitted rated operational current Ie can be smaller
depending on the connection method and cooling conditions.
Rated impulse withstand capacity Itsm
I2t value
A
A²s
3RF20 20-1.A..
200
200
3RF20 30-1.A.2
3RF20 30-1.A.4
3RF20 30-1.A.6
300
300
400
450
450
800
3RF20 50-1.A..
600
1800
3RF20 70-1.A.2
3RF20 70-1.A.4
3RF20 70-1.A.5
3RF20 70-1.A.6
1200
1200
1200
1150
7200
7200
7200
6600
3RF20 90-1.A..
1150
6600
4
Type
Main circuit
Type
3RF20 .0-1.A.2
3RF20 .0-1.A.4
3RF20 .0-1.A.5
3RF20 .0-1.A.6
Main circuit
Rated operational voltage Ue
V
24 ... 230
48 ... 460
48 ... 600
48 ... 600
• Operating range
V
20 ... 253
40 ... 506
40 ... 660
40 ... 660
• Rated frequency
Hz
50/60 –10 %
Rated insulation voltage Ui
V
600
Blocking voltage
V
800
Rage of voltage rise
V/ms
1000
Type
1200
1600
3RF20 .0-1.A0.
3RF20 .0-1.A2.
3RF20 .0-1.A4.
Control circuit
DC operation
AC operation
DC operation
Rated control supply voltage US
V
24 according to EN 61131-2
110 … 230
4 … 30
Rated frequency of the control supply
voltage
Hz
--
50/60 –10 %
--
Rated control voltage Uc
V
30
253
30
Typical actuating current
mA
20
15
20
Response voltage
V
15
90
4
Drop-out voltage
V
5
40
1
• ON-delay
ms
1 + additional max. one half-wave1) 40 + additional max. one half-wave1) 1 + additional max. one half-wave1)
• OFF-delay
ms
1 + additional max. one half-wave 40 + additional max. one half-wave 1 + additional max. one half-wave
Method of operation
Operating times
1)
Only for zero-point-switching devices.
4/14
Siemens LV 1 T · 2007
© Siemens AG 2007
Solid-State Relays
3RF20 solid-state relays, single-phase, 45 mm
Fused version with semiconductor protection (similar to type of coordination "2")1)
Type
All-range
fuses
If a fuse is used with a higher rated current than specified,
semiconductor protection is no longer guaranteed. However,
smaller fuses with a lower rated current for the load can be used
without problems.
For protective devices with gG operational class and for SITOR
full range fuses 3NE1, the minimum cross-sections for the
conductor to be connected must be taken into account.
Semiconductor fuses
Cable and line protection fuses
LV HRC
design
LV HRC
design
Cylindrical design
Cylindrical design
DIAZED
LV HRC design
gR/SITOR
aR/SITOR
3NE1
3NE8
10 x 38 mm 14 x 51 mm 22 x 58 mm
aR/SITOR
aR/SITOR
aR/SITOR
gG
3NC1 0
3NC1 4
3NC2 2
3NA
10 x 38 mm 14 x 51 mm 22 x 58 mm
gG
gG
gG
Quick
3NW
3NW
3NW
5SB
3RF20 20-1.A.2
3RF20 20-1.A.4
3NE1 814-0
3NE1 813-0
3NE8 015-1
3NE8 015-1
3NC1 020
3NC1 016
3NC1 420
3NC1 420
3NC2 220
3NC2 220
3NA2 803
3NA2 801
3NW6 001-1 3NW6 101-1 --3NW6 101-1 --
5SB1 71
5SB1 41
3RF20 30-1.A.2
3RF20 30-1.A.4
3RF20 30-1.A.6
3NE1 815-0
3NE1 815-0
3NE1 815-0
3NE8 003-1
3NE8 003-1
3NE8 003-1
3NC1 032
3NC1 432
3NC1 0252) 3NC1 432
3NC1 032
3NC1 432
3NC2 232
3NC2 232
3NC2 232
3NA2 803
3NA2 803
3NA2 803-6
----
3NW6 103-1 -3NW6 101-1 ----
5SB311
5SB1 71
--
3RF20 50-1.A.2
3RF20 50-1.A.4
3RF20 50-1.A.6
3NE1 817-0
3NE1 802-0
3NE1 803-0
3NE8 017-1
3NE8 017-1
3NE8 017-1
----
3NC1 450
3NC1 450
3NC1 450
3NC2 250
3NC2 250
3NC2 250
3NA2 810
3NA2 807
3NA2 807-6
----
3NW6 107-1 3NW6 207-1 5SB3 21
-3NW6 205-1 5SB3 11
----
3RF20 70-1.A.2 3)
3RF20 70-1.A.4 3)
3RF20 70-1.A.5 3)
3RF20 70-1.A.6 3)
3NE1 820-0
3NE1 020-2
3NE1 020-2
3NE1 020-2
3NE8 020-1
3NE8 020-1
3NE8 020-1
3NE8 020-1
-----
-----
3NC2 280
3NC2 280
3NC2 280
3NC2 280
3NA2 817
3NA2 812
3NA2 812
3NA2 812-6
-----
-----
3NW6 217-1
3NW6 212-1
3NW6 212-1
--
3NE8 021-1
3NE8 021-1
3NE8 021-1
----
----
3NC2 200
3NA2 817
3NC2 2802) 3NA2 812
2)
3NC2 280
3NA2 812-6
----
----
3NW6 217-1 5SB3 31
3NW6 212-1 5SB3 21
---
3RF20 90-1.A.2 3) 3NE1 021-2
3RF20 90-1.A.4 3) 3NE1 021-2
3RF20 90-1.A.6 3) 3NE1 020-22)
5SB3 31
5SB3 21
5SB3 21
--
Suitable fuse holders, fuse bases and controls can be found in
Catalog LV 1, Chapter 19.
1)
Type of coordination "2" according to EN 60947-4-1:
In the event of a short-circuit, the controls in the load feeder must not
endanger persons or the installation. They must be suitable for further
operation. For fused configurations, the protective device must be
replaced.
2)
These fuses have a smaller rated current than the solid-state relays.
3)
These versions can also be protected against short-circuits with miniature
circuit breakers as described in the notes on "SIRIUS Solid-State
Contactors “ Special Version Short-Circuit Resistant".
■ Characteristic curves
See 3RF21 solid-state relays, 22.5 mm.
Siemens LV 1 T · 2007
4/15
4
The semiconductor protection for the SIRIUS controls can be
used with different protective devices. This allows protection by
means of LV HRC fuses of gG operational class or miniature
circuit breakers. Siemens recommends the use of special SITOR
semiconductor fuses. The table below lists the maximum
permissible fuses for each SIRIUS control.
© Siemens AG 2007
Solid-State Relays
3RF20 solid-state relays, single-phase, 45 mm
■ Dimensional drawings
3RF20 .0-1.A..
4 5
2 8
4 7 ,5
4 ,5
1 3
1 4 ,5
2 5
4 3
5 8
3 1 ,5
N S B 0 _ 0 1 4 3 2 a
3 5 ,5
8
■ Schematics
Version
DC control supply voltage
1
L
Version
AC control supply voltage
1
A1 +
L
A2 -
2
T
A1
A2
NSB0_01463
NSB0_01462
2
Switching example
L
N
PE
1/N/PE 50 Hz 230 V
F1
T
F2
S1
ON/OFF
K1
1
L
A1
A2
2
NSB0_01458
4
4 8
4/16
Siemens LV 1 T · 2007
T
R
© Siemens AG 2007
Solid-State Relays
3RF22 solid-state relays, 3-phase, 45 mm
■ Overview
45 mm solid-state relays
The 3RF22 solid-state relays with a width of 45 mm provide
space advantages over solutions with single-phase versions.
The logical connection method, with the power infeed from
above and load connection from below, ensures tidy installation
in the control cabinet.
Important features:
• LED display
• Variety of connection methods
• Plug-in control connection
• Degree of protection IP20
• Zero-point switching
• Two-phase of three-phase controlled
■ Technical specifications
Type
3RF22 ..-1....
3RF22 ..-2....
3RF22 ..-3....
General data
Ambient temperature
°C
-25 ... +60
°C
-55 ... +80
Installation altitude
m
0 ... 1000; > 1000 ask Technical Assistance
Shock resistance
According to IEC 60068-2-27
g/ms
15/11
Vibration resistance
According to IEC 60068-2-6
g
2
4
• During operation, derating from 40 °C
• During storage
IP20
Degree of protection
Insulation strength at 50/60 Hz
(main/control circuit to floor)
V rms
4000
Electromagnetic compatibility (EMC)
• Emitted interference
- Conducted interference voltage according
to IEC 60947-4-3
- Emitted, high-frequency interference
voltage according to IEC 60947-4-3
• Interference immunity
- Electrostatic discharge
according to IEC 61000-4-2
(corresponds to degree of severity 3)
- Induced RF fields
according to IEC 61000-4-6
- Burst according to IEC 61000-4-4
- Surge according to IEC 61000-4-5
Class A for industrial applications1)
Class A for industrial applications
kV
Contact discharge 4; air discharge 8; behavior criterion 2
MHz
0.15 ... 80; 140 dBµV; behavior criterion 1
kV
kV
2/5.0 kHz; behavior criterion 1
Conductor - ground 2; conductor - conductor 1; behavior criterion 2
Screw terminals
Spring-loaded terminal
connections
Ring terminal end connections
2 x (1.5 ... 2.5)2), 2 x (2.5 ... 6)2)
2 x (1 ... 2.5)2), 2 x (2.5 ... 6)2),
1 x 10
-2 x (AWG 14 ... 10)
2 x (0.5 ... 2.5)
2 x (0.5 ... 1.5)
---
2 x (0.5 ... 2.5)
2 x (AWG 18 ... 14)
---
mm
10
10
--
Nm
lb.in
M4
2 ... 2.5
18 ... 22
--
--
Connection type
Connection, main contacts
• Conductor cross-section
- Solid
- Finely stranded with end sleeve
- Finely stranded without end sleeve
- Solid or stranded, AWG conductors
• Stripped length
• Terminal screw
- Tightening torque,
« 5 ... 6 mm, PZ 2
mm2
mm2
mm2
• Cable lug
- According to DIN 46234
- According to JIS C 2805
M5
2.5 ... 2
18 ... 22
5-2.5 ... 5-25
R 2-5 ... 14-5
Connection, auxiliary/control contacts
• Conductor cross-section,
with or without end sleeve
mm
AWG
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
20 ... 12
0.5 ... 2.5
20 ... 12
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
20 ... 12
• Stripped length
mm
7
10
7
--
Nm
lb.in
M3
0.5 ... 0.6
4.5 ... 5.3
M3
0.5 ... 0.6
4.5 ... 5.3
• Terminal screw
- Tightening torque,
« 3.5, PZ 1
1)
These products were built as Class A devices. The use of these devices in
residential areas could result in lead in radio interference. In this case
these may be required to introduce additional interference suppression
measures.
2) If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical crosssections are used, this restriction does not apply.
Siemens LV 1 T · 2007
4/17
© Siemens AG 2007
Solid-State Relays
3RF22 solid-state relays, 3-phase, 45 mm
Imax1)
at Rthha/Tu = 40 °C
Ie acc. to IEC 60947-4-3 Ie according to UL/CSA Power loss
at Imax
at Rthha/Tu = 40 °C
at Rthha/Tu = 50 °C
Minimum load
current
Max. leakage
current
A
K/W
A
K/W
A
K/W
W
A
mA
3RF22 30-. AB..
30
0.57
30
0.57
30
0.44
81
0.5
10
3RF22 55-1AB..
3RF22 55-2AB..
3RF22 55-3AB..
55
0.18
50
20
50
0.27
1.83
0.27
50
20
50
0.19
1.58
0.19
151
0.5
10
3RF22 30-. AC..
30
0.33
30
0.33
30
0.25
122
0.5
10
3RF22 55-1AC..
3RF22 55-2AC..
3RF22 55-3AC..
55
0.09
50
20
50
0.15
1.19
0.15
50
20
50
0.1
1.02
0.1
226
0.5
10
Type
Main circuit
1)
Imax provides information about the performance of the solid-state relay.
The actual permitted rated operational current Ie can be smaller
depending on the connection method and cooling conditions.
Type
Rated impulse withstand capacity Itsm
I2t value
A
A2s
4
Main circuit
3RF22 30-....5
300
450
3RF22 55-....5
600
1800
Type
3RF22 ..-.AB.5
3RF22 ..-.AC.5
Main circuit
Two-phase
Three-phase
Rated operational voltage Ue
V
48 ... 600
48 ... 600
• Operating range
V
40 ... 660
40 ... 660
• Rated frequency
Hz
50/60 –10 %
50/60 –10 %
Rated insulation voltage Ui
V
600
600
Rated impulse withstand voltage Uimp
kV
6
6
Blocking voltage
V
1200
1200
Rage of voltage rise
V/µs
1.000
1.000
3RF22 ..-.AB4.
3RF22 ..-.AC4.
Controlled phases
Type
Control circuit
DC operation
DC operation
Rated control supply voltage Us
V
4 ... 30
4 ... 30
Typical actuating current
mA
30
30
Response voltage
V
15
15
Drop-out voltage
V
1
1
• ON-delay
ms
1 + max. one half-wave
1 + max. one half-wave
• OFF-delay
ms
1 + max. one half-wave
Method of operation
Operating times
1 + max. one half-wave
Fused version with semiconductor protection (similar to type of coordination
The semiconductor protection for the 3RF22 controls can be
used with different protective devices. Siemens recommends
the use of special SITOR semiconductor fuses. The table below
lists the maximum permissible fuses for each 3RF22 control.
Order No.
All-range
fuses
"2")1)
If a fuse is used with a higher rated current than specified,
semiconductor protection is no longer guaranteed. However,
smaller fuses with a lower rated current for the load can be used
without problems.
Semiconductor fuses
Cable and line protection fuses
LV HRC
design
LV HRC
design
LV HRC design
gR/SITOR
aR/SITOR
3NE1
3NE8
Cylindrical design
Cylindrical design
DIAZED
10 x 38 mm 14 x 51 mm 22 x 58 mm
aR/SITOR
aR/SITOR
aR/SITOR
gG
3NC1 0
3NC1 4
3NC2 2
3NA
10 x 38 mm 14 x 51 mm 22 x 58 mm
gG
gG
gG
Quick
3NW
3NW
3NW
5SB
Rated operational voltage Ue up to 506 V
3RF22 30-.....
3NE1 814-0
3NE8 003-1
3NC1 032
3NC1 430
3NC2 232
3NA3 803-6
--
3NW6 101-1 --
3RF22 55-.....
3NE1 802-0
3NE8 020-1
--
3NC1 450
3NC2 263
3NA3 807-6
--
--
3NW6 205-1 3SB3 11
3SB1 17
Rated operational voltage Ue up to 660 V
3RF22 30-.....
3NE1 814-0
3NE8 003-1
3NC1 025
3NC1 430
3NC2 232
3NA3 803-6
--
--
--
--
3RF22 55-.....
3NE1 803-0
3NE8 018-1
--
3NC1 450
3NC2 250
3NA3 805-6
--
--
--
--
Suitable fuse holders, fuse bases and controls can be found in
Catalog LV 1, Chapter 19.
1)
Type of coordination "2" according to EN 60947-4-1:
4/18
Siemens LV 1 T · 2007
In the event of a short-circuit, the controls in the load feeder must not
endanger persons or the installation. They must be suitable for further
operation. For fused configurations, the protective device must be
replaced.
© Siemens AG 2007
Solid-State Relays
3RF22 solid-state relays, 3-phase, 45 mm
■ Characteristic curves
Dependence of the device current Ie on the ambient temperature Ta (two-phase controlled)
Min. thickness of the heat sink´s mounting plate
3 mm
5 mm
Module power loss
e in A
M in W
100
80
R thha
0,35 K/W
60
0,45 K/W
0,56 K/W
0,75 K/W
1,3 K/W
1,7 K/W
2,2 K/W
3 K/W
20
4 K/W
NSB0_01671a
5 K/W
4
12
20
28 30
36
0
10
20
30
Device current e in A
40
50
7 K/W
10 K/W
60
Ambient temperature a in °C
Type current 30 A (3RF22 30-.AB..)
Min. thickness of the heat sink´s mounting plate
3 mm
5 mm
e in A
M in W
160
Module power loss
140
120
R thha
0,13 K/W
100
0,18 K/W
0,25 K/W
0,37 K/W
80
0,55 K/W
0,8 K/W
60
1,2 K/W
2 K/W
40
3 K/W
NSB0_01672a
4 K/W
20
0
5
15
25
35
45
55
Device current e in A
0
10
20
30
40
50
5 K/W
7 K/W
10 K/W
60
Ambient temperature a in °C
Type current 55 A (3RF22 55-.AB..)
Siemens LV 1 T · 2007
4/19
4
1 K/W
40
© Siemens AG 2007
Solid-State Relays
3RF22 solid-state relays, 3-phase, 45 mm
Dependence of the device current Ie on the ambient temperature Ta (three-phase controlled)
Min. thickness of the heat sink´s mounting plate
5 mm
M in W
160
e in A
3 mm
Module power loss
140
120
R thha
0,26 K/W
100
0,33 K/W
0,44 K/W
80
0,62 K/W
0,9 K/W
1,3 K/W
60
1,7 K/W
4
2,2 K/W
40
3 K/W
4 K/W
4
12
20
28 30
0
36
NSB0_01673a
20
0
10
20
30
Device current e in A
40
50
5 K/W
7 K/W
10 K/W
60
Ambient temperature a in °C
Type current 30 A (3RF22 30-.AC..)
Min. thickness of the heat sink´s mounting plate
3 mm
5 mm
e in A
M in W
250
Module power loss
200
R thha
0,06 K/W
150
0,09 K/W
0,15 K/W
0,25 K/W
0,4 K/W
100
0,6 K/W
0,8 K/W
1,1 K/W
1,5 K/W
50
NSB0_01674a
2 K/W
0
5
15
25
35
45
55
0
10
20
Device current e in A
Type current 55 A (3RF22 55-.AC..)
Arrangement example
Given conditions: Ie = 55 A and Ta = 40 C. The task is to find the
thermal resistance Rthha and the heat sink overtemperature dTha.
From the diagram on the left “ PM = 227 W,
from the diagram on the right “ Rthha = 0.09 K/W.
This results in:
dTha = Rthha × PM = 0.09 K/W × 227 W = 20.4 K.
At dTha = 20.4 K the heat sink must therefore have an
Rthha = 0.09 K/W.
4/20
Siemens LV 1 T · 2007
30
40
50
Ambient temperature a in °C
60
3 K/W
4 K/W
6 K/W
© Siemens AG 2007
Solid-State Relays
3RF22 solid-state relays, 3-phase, 45 mm
■ Dimensional drawings
Solid-state relay
Spring-loaded terminal
3RF22 ..-2....
NSB0_01689a
77
95
Ring terminal lug
3RF22 ..-3....
69
Screw terminal
3RF22 ..-1....
47,5
69
Spring-loaded
terminals
13
26
30
31
29
45
33
29
4
47
47
■ Schematics
2 T1
3
4
L2
T2
1 L1
5 L3
6
T3
3 L2
5 L3
A1 +
A1 +
A2 -
A2 -
NSB0_01694
1 L1
Three-phase controlled,
DC control supply voltage
2 T1
4 T2
6
T3
NSB0_01696
Two-phase controlled,
DC control supply voltage
Siemens LV 1 T · 2007
4/21
© Siemens AG 2007
Solid-State Contactors
General data
■ Overview
6A
5SY4 106-6,
5SX2 106-6
1 mm2
5m
10 A
5SY4 110-6,
5SX2 110-6
1.5 mm2
8m
16 A
5SY4 116-6,
5SX2 116-6
1.5 mm2
12 m
16 A
5SY4 116-6,
5SX2 116-6
2.5 mm2
20 m
20 A
5SY4 120-6,
5SX2 120-6
2.5 mm2
20 m
25 A
5SY4 125-6,
5SX2 125-6
2.5 mm2
26 m
The miniature circuit breakers can be used up to a maximum rated voltage
of 480 V!
Version for resistive loads, "zero-point switching"
This standard version is often used for switching space heaters
on and off.
Version for inductive loads, "instantaneous switching"
In this version the solid-state contactor is specifically matched to
inductive loads. Whether it is a matter of frequent actuation of the
valves in a filling plant or starting and stopping small operating
mechanisms in packet distribution systems, operation is carried
out safely and noiselessly.
3/N/PE 50 Hz 230 /400 V
3/N/PE 50 Hz 230/400 V
L1
L2
L3
N
L1
L2
L3
N
F1
K1
Special "Low Noise" version
Thanks to a special control circuit, this special version can be
used in public networks up to 16 A without any additional measures such as interference suppressor filters. As a result it
conforms to limit value curve class B according to EN 60947-4-3
in terms of emitted interference.
F1
I, A
K1
1
L
1
L
2
T
2
T
Special "Short-circuit-resistant" version
Skillful matching of the power semiconductor with the performance of the solid-state contactor means that "short-circuit
strength" can be achieved with a standard miniature circuit
breaker. In combination with a B-type MCB or a conventional
fuse, the result is a short-circuit resistant feeder.
In order to achieve problem-free short-circuit protection by
means of miniature circuit breakers, however, certain boundary
conditions must be observed. As the magnitude and duration of
the short-circuit current are determined not only by the shortcircuit breaking response of the miniature circuit breaker but
also the properties of the wiring system, such as the internal
resistance of the input to the network and damping by controls
and cables, particular attention must also be paid to these
parameters. The necessary cable lengths are therefore shown
for the main factor, the conductor resistance, in the table below.
The following miniature circuit breakers with a type B tripping
characteristic and 10 kA or 6 kA breaking capacity protect the
3RF23..-.DA.. solid-state contactors in the event of short-circuits
on the load and the specified conductor cross-sections and
lengths:
4/22
Siemens LV 1 T · 2007
F2
R1
I, A
Ltg
1)
Ltg
4
The solid-state contactors are available in 2 different versions:
• 3RF23 Single-phase solid-state contactors
• 3RF24 3-phase solid-state contactors
Max. conductor Minimum cable
cross-section
length from
contactor to
load
NSB0_01473b
With their insulated mounting foot they can easily be snapped
onto a standard mounting rail, or they can be mounted on carrier
plates with fixing screws. This insulation enables them to be
used in circuits with protective extra-low voltage (PELV) or safety
extra-low voltage (SELV) in building engineering. For other applications, such as for extended personal safety, the heat sink can
be grounded through a screw terminal.
Rated current of the Example
miniature circuit
Type1)
breaker
Ltg
The complete units consist of a solid-state relay plus optimized
heat sink, and are therefore „ready to use“. They offer defined
rated currents to make selection as easy as possible.
Depending on the version, current strengths of up to 88 A are
achieved. Like all of our solid-state switching devices, one of
their particular advantages is their compact and space-saving
design.
R1
The setup and installation above can also be used for the solidstate relays with a I2t value of at least 6600 A2s.
■ More information
Selecting solid-state contactors
The solid-state contactors are selected on the basis of details
of the network, the load and the ambient conditions. As the solidstate contactors are already equipped with an optimally matched
heat sink, the selection process is considerably simpler than that
for solid-state relays.
The following procedure is recommended:
• Determine the rated current of the load and the mains voltage
• Select a solid-state contactor with the same or higher rated
current than the load
• Check the correct contactor size with the aid of the rated
current diagram, taking account of the installation conditions
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
■ Technical specifications
Type
3RF23 ..-.A...
3RF23 ..-.B...
3RF23 ..-.C...
3RF23 ..-.D...
Class A for industrial
applications;
Class B for residential/
business/ commercial
applications up to 16 A,
AC51 Low Noise
Class A for industrial
applications
General data
Ambient temperature
• During operation, derating from 40 °C
°C
-25 ... +60
• During storage
°C
-55 ... +80
Installation altitude
m
0 ... 1000; derating from 1000
Shock resistance
According to IEC 60068-2-27
g/ms
15/11
Vibration resistance
According to IEC 60068-2-6
g
2
IP20
Degree of protection
Electromagnetic compatibility (EMC)
• Interference immunity
- Electrostatic discharge
according to IEC 61000-4-2
(corresponds to degree of severity 3)
- Induced RF fields
according to IEC 61000-4-6
- Burst according to IEC 61000-4-4
- Surge according to IEC 61000-4-5
Class A for industrial applications
4
• Emitted interference
according to IEC 60947-4-3
- Conducted interference voltage
- Emitted, high-frequency interference
voltage
kV
Contact discharge 4; air discharge 8; behavior criterion 2
MHz
0.15 ... 80; 140 dBµV; behavior criterion 1
kV
kV
2/5.0 kHz; behavior criterion 1
Conductor - ground 2; conductor - conductor 1; behavior criterion 2
Type
3RF23 ..-1....
3RF23 ..-2....
3RF23 ..-3....
Screw terminals
Spring-loaded terminal
connections
Ring terminal end connections
2 x (1.5 ... 2.5)1), 2 x (2.5 ... 6)1)
2 x (1 ... 2.5)1), 2 x (2.5 ... 6)1),
1 x 10
-2 x (AWG 14 ... 10)
2x (0.5 ... 2.5)
2x (0.5 ... 1.5)
---
2x (0.5 ... 2.5)
2 x (AWG 18 ... 14)
---
M4
--
M5
2 ... 2.5
7 ... 10.3
---
2 ... 2.5
7 ... 10.3
--
--
General data
Connection type
Connection, main contacts
• Conductor cross-section
- Solid
- Finely stranded with end sleeve
- Finely stranded without end sleeve
- Solid or stranded, AWG conductors
mm2
mm2
mm2
• Terminal screw
• Tightening torque
Nm
lb.in
• Cable lug
- DIN
DIN 46234
-5-2.5, -5-6, -5-10, -5-16, -5-25
JIS C 2805 R 2-5, 5.5-5, 8-5, 14-5
- JIS
Connection, auxiliary/control contacts
• Conductor cross-section
mm
AWG
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
AWG 20 ... 12
0.5 ... 2.5
AWG 20 ... 12
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
AWG 20 ... 12
• Stripped length
mm
7
10
7
M3
--
M3
0.5 ... 0.6
4.5 ... 5.3
---
0.5 ... 0.6
4.5 ... 5.3
• Terminal screw
• Tightening torque
NM
lb.in
Permissible mounting positions
±10°
±10°
NSB0_01701
1)
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical
cross-sections are used, this restriction does not apply.
Type
3RF23 ..-....2
3RF23 ..-....4
3RF23 ..-....5
3RF23 ..-....6
Main circuit
Rated operational voltage Ue
V
24 ... 230
48 ... 460
48 ... 600
48 ... 600
• Operating range
V
20 ... 253
40 ... 506
40 ... 660
40 ... 660
• Rated frequency
Hz
50/60 –10 %
Rated insulation voltage Ui
V
600
Blocking voltage
V
800
Rage of voltage rise
V/µs
1000
1200
1600
Siemens LV 1 T · 2007
4/23
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
Type current AC-511)
Type
for Imax
Power loss at
Imax
Minimum load
current
Leakage
current
Rated impulse I2t value
withstand
capacity Itsm
at 40 °C
according to
IEC 60947-4-3
for 40 °C
according to
UL/CSA
for 50 °C
A
A
A
W
A
mA
A
A²s
3RF23 1.-.A..2
3RF23 1.-.A..4
3RF23 1.-.A..6
10.5
7.5
9.6
11
0.1
10
200
200
400
200
200
800
3RF23 2.-.A..2
3RF23 2.-.A..4
3RF23 2.-.A..5
3RF23 2.-.A..6
3RF23 2.-.C..2
3RF23 2.-.C..4
3RF23 2.-.D..2
3RF23 2.-.D..4
20
13.2
17.6
20
0.5
10
10
10
10
25
25
10
10
600
600
600
600
600
600
1150
1150
1800
1800
1800
1800
1800
1800
6600
6600
3RF23 3.-.A..2
3RF23 3.-.A..4
3RF23 3.-.A..6
3RF23 3.-.C..2
3RF23 3.-.D..4
30
22
27
33
0.5
10
10
10
25
10
600
600
600
600
1150
1800
1800
1800
1800
6600
3RF23 4.-.A..2
3RF23 4.-.A..4
3RF23 4.-.A..5
3RF23 4.-.A..6
40
33
36
44
0.5
10
1200
1200
1200
1150
7200
7200
7200
6600
3RF23 5.-.A..2
3RF23 5.-.A..4
3RF23 5.-.A..5
3RF23 5.-.A..6
50
36
45
54
0.5
10
1150
6600
3RF23 7.-.A..2
3RF23 7.-.A..4
3RF23 7.-.A..5
3RF23 7.-.A..6
70
70
62
83
0.5
10
1150
6600
3RF23 9.-.A..2
3RF23 9.-.A..4
3RF23 9.-.A..5
3RF23 9.-.A..6
88
88
80
117
0.5
10
1150
6600
4
Main circuit
1)
The type current provides information about the performance of the solidstate contactor. The actual permitted rated operational current Ie can be
smaller depending on the connection method and start-up conditions.
For derating see the characteristic curves on page 4/26.
Type current AC-511)
Type
for Imax
at 40 °C
Type current AC-15
according to according to 10 x Ie
IEC 60947- UL/CSA
for
4-3
for 50 °C
60 ms
for 40 °C
Parameters
Power loss
at Imax
Minimum
Leakage
load current current
Rated
I2t value
impulse
withstand
capacity Itsm
W
A
mA
A
A²s
A
A
A
A
3RF23 1.-.B..2
3RF23 1.-.B..4
3RF23 1.-.B..6
10.5
7.5
9.6
6
1200 1/h
50 %
ON-period
11
0.1
10
200
200
400
200
200
800
3RF23 2.-.B..2
3RF23 2.-.B..4
3RF23 2.-.B..6
20
13.2
17.6
12
1200 1/h
50 %
ON-period
20
0.5
10
600
1800
3RF23 3.-.B..2
3RF23 3.-.B..4
3RF23 3.-.B..6
30
22
27
15
1200 1/h
50 %
ON-period
33
0.5
10
600
1800
3RF23 4.-.B..2
3RF23 4.-.B..4
3RF23 4.-.B..6
40
33
36
20
1200 1/h
50 %
ON-period
44
0.5
10
1200
1200
1150
7200
7200
6600
3RF23 5.-.B..2
3RF23 5.-.B..4
3RF23 5.-.B..6
50
36
45
25
1200 1/h
50 %
ON-period
54
0.5
10
1150
6600
3RF23 7.-.B..2
3RF23 7.-.B..4
3RF23 7.-.B..6
70
70
62
27.5
1200 1/h
50 %
ON-period
83
0.5
10
1150
6600
3RF23 9.-.B..2
3RF23 9.-.B..4
3RF23 9.-.B..6
88
88
80
30
1200 1/h
50 %
ON-period
117
0.5
10
1150
6600
Main circuit
1)
The type current provides information about the performance of the solidstate contactor. The actual permitted rated operational current Ie can be
smaller depending on the connection method and start-up conditions.
For derating see the characteristic curves on page 4/26.
4/24
Siemens LV 1 T · 2007
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
Type
3RF23 ..-...0.
3RF23 ..-...1.
3RF23 ..-...2.
3RF23 ..-...4.
Control circuit
DC operation
AC/DC operation
AC operation
DC operation
Rated control supply voltage Us
V
24 acc. to EN 61131-2
24
110 ... 230 AC
4 ... 30
Rated frequency
Of the control supply voltage
Hz
--
AC 50/60 Hz / -- DC
50/60 –10 %
--
Actuating voltage, max.
V
30
26.5 AC / 30 DC
253
30
Typical actuating current
A
20
20
15
20
Response voltage
V
15
14 AC / 15 DC
90
4
Drop-out voltage
V
5
5
40
1
Operating times
• ON-delay
ms
1 + additional max.
one half-wave1)
40 + additional max.
one half-wave1)
1 + additional max.
one half-wave1)
• OFF-delay
ms
1 + additional max.
one half-wave
AC: 40 + additional max.
one half-wave1)
DC: 1 + additional max.
one half-wave1)
AC: 1 + additional max.
one half-wave
DC: 1 + additional max.
one half-wave
40 + additional max.
one half-wave
1 + additional max.
one half-wave
Method of operation
Only for zero-point-switching devices.
4
1)
Fused version with semiconductor protection (similar to type of coordination "2")1)
The semiconductor protection for the SIRIUS controls can be
used with different protective devices. This allows protection by
means of LV HRC fuses of gG operational class or miniature
circuit breakers. Siemens recommends the use of special SITOR
semiconductor fuses. The table below lists the maximum
permissible fuses for each SIRIUS control.
Type
All-range
fuses
If a fuse is used with a higher rated current than specified,
semiconductor protection is no longer guaranteed. However,
smaller fuses with a lower rated current for the load can be used
without problems.
For protective devices with gG operational class and for SITOR
full range fuses 3NE1, the minimum cross-sections for the
conductor to be connected must be taken into account.
Semiconductor fuses
Cable and line protection fuses
LV HRC
design
LV HRC
design
Cylindrical design
Cylindrical design
DIAZED
LV HRC design
gR/SITOR
aR/SITOR
3NE1
3NE8
10 x 38 mm 14 x 51 mm 22 x 58 mm
aR/SITOR
aR/SITOR
aR/SITOR
gG
3NC1 0
3NC1 4
3NC2 2
3NA
10 x 38 mm 14 x 51 mm 22 x 58 mm
gG
gG
gG
Quick
3NW
3NW
3NW
5SB
3RF23 1.-....2
3RF23 1.-....4
3RF23 1.-....6
3NE1 813-0
3NE1 813-0
3NE1 813-0
3NE8 015-1
3NE8 015-1
3NE8 015-1
3NC1 010
3NC1 010
3NC1 010
3NC1 410
3NC1 410
3NC1 410
3NC2 220
3NC2 220
3NC2 220
3NA2 803
3NA2 801
3NA2 803-6
3NW6 001-1 3NW6 101-1 -3NW6 001-1 3NW6 101-1 -----
5SB1 41
5SB1 41
--
3RF23 2.-....2
3RF23 2.-....4
3RF23 2.-....5
3RF23 2.-....6
3NE1 814-0
3NE1 814-0
3NE1 814-0
3NE1 814-0
3NE8 015-1
3NE8 015-1
3NE8 015-1
3NE8 015-1
3NC1 020
3NC1 020
3NC1 020
3NC1 020
3NC1 420
3NC1 420
3NC1 420
3NC1 420
3NC2 220
3NC2 220
3NC2 220
3NC2 220
3NA2 807
3NA2 807
3NA2 807-6
3NA2 807-6
3NW6 007-1
3NW6 005-1
---
3NW6 107-1
3NW6 105-1
---
5SB1 71
5SB1 71
---
3RF23 3.-....2
3RF23 3.-....4
3RF23 3.-....6
3NE1 803-0
3NE1 803-0
3NE1 803-0
3NE8 003-1
3NE8 003-1
3NE8 003-1
3NC1 032
3NC1 032
3NC1 032
3NC1 432
3NC1 432
3NC1 432
3NC2 232
3NC2 232
3NC2 232
3NA2 810
3NA2 807
3NA2 807-6
----
3NW6 107-1 3NW6 207-1 5SB3 11
3NW6 105-1 3NW6 205-1 5SB3 11
----
3RF23 4.-....2
3RF23 4.-....4
3RF23 4.-....5
3RF23 4.-....6
3NE1 802-0
3NE1 802-0
3NE1 802-0
3NE1 802-0
3NE8 017-1
3NE8 017-1
3NE8 017-1
3NE8 017-1
-----
3NC1 440
3NC1 440
3NC1 440
3NC1 440
3NC2 240
3NC2 240
3NC2 240
3NC2 240
3NA2 817
3NA2 812
3NA2 812-6
3NA2 812-6
-----
3NW6 117-1
3NW6 112-1
---
3RF23 5.-....2
3RF23 5.-....4
3RF23 5.-....5
3RF23 5.-....6
3NE1 817-0
3NE1 817-0
3NE1 817-0
3NE1 817-0
3NE8 018-1
3NE8 018-1
3NE8 018-1
3NE8 018-1
-----
3NC1 450
3NC1 450
3NC1 450
3NC1 450
3NC2 250
3NC2 250
3NC2 250
3NC2 250
3NA2 817
3NA2 812
3NA2 812-6
3NA2 812-6
-----
3NW6 117-1 3NW6 217-1 5SB3 21
-3NW6 210-1 5SB3 21
-----
3RF23 7.-....2
3RF23 7.-....4
3RF23 7.-....5
3RF23 7.-....6
3NE1 820-0
3NE1 020-2
3NE1 020-2
3NE1 020-2
3NE8 020-1
3NE8 020-1
3NE8 020-1
3NE8 020-1
-----
-----
3NC2 280
3NC2 280
3NC2 280
3NC2 280
3NA2 817
3NA2 812
3NA2 812-6
3NA2 812-6
-----
-----
3NW6 217-1
3NW6 210-1
---
5SB3 31
5SB3 21
---
3RF23 9.-....2
3RF23 9.-....4
3RF23 9.-....5
3RF23 9.-....6
3NE1 021-2
3NE1 021-2
3NE1 020-2 2)
3NE1 020-2 2)
3NE8 021-1
3NE8 021-1
3NE8 021-1
3NE8 021-1
-----
-----
3NC2 200
3NC2 280 2)
3NC2 280 2)
3NC2 280 2)
3NA2 817
3NA2 812
3NA2 812-6
3NA2 812-6
-----
-----
3NW6 217-1
3NW6 210-1
---
5SB3 31
5SB3 21
---
3NW6 207-1
3NW6 205-1
---
3NW6 217-1
3NW6 212-1
---
5SB3 21
5SB3 21
---
Suitable fuse holders, fuse bases and controls can be found in
Catalog LV 1, Chapter 19.
1)
Type of coordination "2" according to EN 60947-4-1:
In the event of a short-circuit, the controls in the load feeder must not
endanger persons or the installation. They must be suitable for further
operation. For fused configurations, the protective device must be
replaced.
2) These fuses have a smaller rated current than the solid-state contactors.
Siemens LV 1 T · 2007
4/25
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
■ Characteristic curves
Derating curves
1 4
1 2
1 2
in W
1 4
e
in A
For designation of the characteristic curves see page 4/28.
1 0
M o d u le p o w e r lo s s
M
1 0
8
6
8
6
4
N S B 0 _ 0 1 4 4 6 a
4
4
2
0
0
1 0
2 0
3 0
4 0
5 0
A m b ie n t te m p e r a tu r e
2
0
0
6 0
a
in ° C
2
4
6
D e v ic e c u r r e n t
1 0
8
1 2
in A
e
Type current 10.5 A (3RF23 10)
3 0
3 0
in W
2 5
2 4
M
e
in A
2 8
M o d u le p o w e r lo s s
2 0
1 5
1 0
2 0
1 6
1 2
8
N S B 0 _ 0 1 4 4 7 a
5
0
0
1 0
2 0
3 0
4 0
5 0
A m b ie n t te m p e r a tu r e
4
0
0
4
6 0
in ° C
a
8
1 2
D e v ic e c u r r e n t
1 6
2 0
2 4
in A
e
Type current 20 A (3RF23 20)
4 0
4 4
4 0
2 0
1 5
in W
2 5
3 6
M
3 0
3 2
M o d u le p o w e r lo s s
e
in A
3 5
2 8
2 4
2 0
1 6
1 2
N S B 0 _ 0 1 4 4 8 a
1 0
5
0
0
1 0
2 0
3 0
4 0
5 0
A m b ie n t te m p e r a tu r e
Type current 30 A (3RF23 30-.AA.., -.BA.., -.CA..)
4/26
Siemens LV 1 T · 2007
a
6 0
in ° C
8
4
0
0
8
1 6
D e v ic e c u r r e n t
2 4
e
in A
3 2
3 6
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
40
in W
M
30
Module power loss
e
in A
32
35
25
20
15
28
24
20
16
12
10
NSB0_01528
8
5
0
0
10
20
30
40
50
4
0
Ambient temperature
60
0 4
8 12 16 20 24 28 32
Device current
in °C
e
in A
4
a
Type current 30 A (3RF23 30-.DA..)
5 6
4 8
in W
5 0
M
e
in A
6 0
M o d u le p o w e r lo s s
4 0
3 0
2 0
4 0
3 2
2 4
1 6
N S B 0 _ 0 1 4 4 9 a
1 0
0
0
1 0
2 0
3 0
4 0
5 0
A m b ie n t te m p e r a tu r e
8
0
6 0
0
8
in ° C
a
1 6
2 4
D e v ic e c u r r e n t
3 2
4 0
4 8
5 0
6 0
in A
e
7 0
6 0
6 0
in W
7 0
M
e
in A
Type current 40 A (3RF23 40)1)
5 0
M o d u le p o w e r lo s s
5 0
4 0
3 0
2 0
4 0
3 0
2 0
N S B 0 _ 0 1 4 5 0 a
1 0
0
0
1 0
2 0
3 0
4 0
5 0
A m b ie n t te m p e r a tu r e
a
6 0
in ° C
1 0
0
0
1 0
2 0
D e v ic e c u r r e n t
3 0
4 0
e
in A
Type current 50 A (3RF23 50)1)
Siemens LV 1 T · 2007
4/27
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
1 0 0
1 1 0
in W
8 0
M o d u le p o w e r lo s s
M
e
in A
1 0 0
6 0
4 0
2 0
0
1 0
2 0
3 0
4 0
5 0
4 0
0
6 0
A m b ie n t te m p e r a tu r e
a
0
2 0
4 0
6 0
D e v ic e c u r r e n t
in ° C
e
8 0
9 0
8 0
9 0
in A
Type current 70 A (3RF23 70)1)
1 2 0
in W
in A
1 0 0
8 0
1 0 0
M o d u le p o w e r lo s s
M
e
6 0
4 0
N S B 0 _ 0 1 4 5 2 a
2 0
0
0
1 0
2 0
3 0
4 0
5 0
A m b ie n t te m p e r a tu r e
Type current 88 A (3RF23 90)1)
m a x
m a x
IE C
IE C
T h e rm
T h e rm
C u rre
C u rre
a l lim
a l lim
n t a c c
n t a c c
it c u r r e n t fo r in d
it c u r r e n t fo r s id
. to IE C 9 4 7 -4 -3
. to IE C 9 4 7 -4 -3
iv id u a l m o u
e - b y - s id e m
fo r in d iv id u
fo r s id e - b y
n tin
o u n
a l m
- s id
g
tin g
o u n tin g
e m o u n tin g
Mounting regulations
>20 (0,8)
>20 (0,8)
3RF2340, 3RF2350
3RF2370, 3RF2390
>50 (2)
NSB0_01700
>50 (2)
3RF2340, 3RF2350
3RF2370, 3RF2390
>70 (2,75)
>20 (0,8)
>20 (0,8)
3RF2310, 3RF2320
3RF2330
>20 (0,8)
>70 (2,75)
3RF2310, 3RF2320
3RF2330
4
6 0
2 0
N S B 0 _ 0 1 4 5 1 a
0
8 0
Clearances for stand-alone and side-by-side installation
1)
Identical current/temperature curves for stand-alone and side-by-side
installation.
4/28
Siemens LV 1 T · 2007
a
6 0
in ° C
8 0
6 0
4 0
2 0
0
0
2 0
4 0
D e v ic e c u r r e n t
6 0
e
in A
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
■ Dimensional drawings
Type current 10.5 A and 20 A
3RF23 20-.....
3RF23 30-.DA..
Screw terminal
3RF23 10-1....
3RF23 20-1....
3RF23 30-1DA..
22,5
12,5
5
100,5
4
12,5
25
14,5
14,5
69
47,5
69
90
Standard mounting rail
100
85
NSB0_01437
119
54
Ring terminal
end connection
3RF23 10-3....
3RF23 20-3....
3RF23 30-3DA..
4,
5
5
5
73
Spring-loaded
connection
3RF23 10-2....
3RF23 20-2....
3RF23 30-2DA..
20,8
3RF23 10-.....
4
4
123
135,5
77
89
Type current 30 A
Screw terminal
3RF23 30-1.A..,-1.B..
NSB0_01438
69
47,5
90
5
5
12,5 14,5
25
14,5
69
100
85
Standard mounting rail
4,5
45
30
4,5
5
134,5
Ring terminal end connection
3RF23 30-3.A.., -3.B..
116
4
12,5
30
138,5
151
Type current 40 A and 50 A
Screw terminal
3RF23 40-1...
3RF23 50-1....
4,5
NSB0_01439
12,5 14,5
5
5
116
4
138,5
151
69
47,5
90
69
25
14,5
100
Standard mounting rail
85
45
30
4,5
5
134,5
Ring terminal end connection
3RF23 40-3....
3RF23 50-3....
30
67
12,5
Siemens LV 1 T · 2007
4/29
© Siemens AG 2007
Solid-State Contactors
3RF23 solid-state contactors, single-phase
Type current 70 A
Screw terminal
3RF23 70-1....
Ring terminal lug
3RF23 70-3....
1 3 5
1 2 3
6 9
4 7 ,5
6 9
4 ,5
1 2 2 ,5
8
1 2 ,5
Type current 88 A
Screw terminal
3RF23 90-1....
Ring terminal lug
3RF23 90-3....
1 8 0
1 6 8
1 5 0 ,5
6 9
4 7 ,5
6 9
1 4 ,5
1 2 ,5
1 4 ,5
2 5
1 8 0
2 0 0
2 2 ,5
N S B 0 _ 0 1 4 4 2 a
1 2 ,5
1 6 2 ,5
4 ,5
1 2 7 ,5
■ Schematics
Terminal cover
3RF29 00-3PA88
Version
DC control supply voltage
3 7 ,5
1
L
A1 +
PE
1
L
2
T
A1
A2
NSB0_01465
N S B 0 _ 0 1 4 7 2
2 9
Siemens LV 1 T · 2007
2 2 ,5
NSB0_01464
A2 -
2 7 ,5
4/30
Version
AC control supply voltage
1 2
PE
3 6 ,5
4
1 4 5
1 5 7 ,5
1 2 ,5
N S B 0 _ 0 1 4 4 1
1 4 ,5
2 5
1 4 ,5
8 0
1 0 0
1 4 1
2
T
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
■ Technical specifications
Type
3RF24 ..-1....
3RF24 ..-2....
3RF24 ..-3....
General data
Ambient temperature
• During operation, derating from 40 °C
°C
-25 ... +60
• During storage
°C
-55 ... +80
Installation altitude
m
0 ... 1000; derating from 1000
Shock resistance
According to IEC 60068-2-27
g/ms
15/11
Vibration resistance
According to IEC 60068-2-6
g
2
IP20
Degree of protection
Insulation strength at 50/60 Hz
(main/control circuit to floor)
V rms
4000
Electromagnetic compatibility (EMC)
• Emitted interference
according to IEC 60947-4-3
- Conducted interference voltage
- Emitted, high-frequency interference
voltage
• Interference immunity
- Electrostatic discharge
according to IEC 61000-4-2
(corresponds to degree of severity 3)
- Induced RF fields
according to IEC 61000-4-6
- Burst according to IEC 61000-4-4
- Surge according to IEC 61000-4-5
4
Class A for industrial applications1)
Class A for industrial applications
kV
Contact discharge 4; air discharge 8; behavior criterion 2
MHz
0.15 ... 80; 140 dBµV; behavior criterion 1
kV
kV
2/5.0 kHz; behavior criterion 1
Conductor - ground 2; conductor - conductor 1; behavior criterion 2
Connection type
Screw connections
Spring-loaded terminal
connections
Ring terminal end connections
2 x (1.5 ... 2.5)2), 2 x (2.5 ... 6)2)
2 x (1 ... 2.5)2), 2 x (2.5 ... 6)2),
1 x 10
-2 x (AWG 14 ... 10)
2x (0.5 ... 2.5)
2x (0.5 ... 1.5)
---
2x (0.5 ... 2.5)
2 x (AWG 18 ... 14)
---
mm
10
10
--
--
Nm
lb. in
M4
2 ... 2.5
18 ... 22
M5
2 ... 2.5
18 ... 22
--
--
Connection, main contacts
• Conductor cross-section
- Solid
- Finely stranded with end sleeve
- Finely stranded without end sleeve
- Solid or stranded, AWG conductors
• Stripped length
• Terminal screw
- Tightening torque
mm2
mm2
mm2
• Cable lug
- According to DIN 46234
- According to JIS C 2805
5-2.5 ... 5-25
R 2-5 ,,, 14-5
Connection, auxiliary/control contacts
• Conductor cross-section
mm
AWG
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
AWG 20 ... 12
0.5 ... 2.5
AWG 20 ... 12
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0)
AWG 20 ... 12
• Stripped length
mm
7
10
7
--
Nm
lb. in
M3
0.5 ... 0.6
4.5 ... 5.3
M3
0.5 ... 0.6
4.5 ... 5.3
• Terminal screw
- Tightening torque,
« 3.5, PZ 1
Permissible mounting positions
±10°
±10°
NSB0_01703
1)
These products were built as Class A devices. The use of these devices in
residential areas could result in lead in radio interference. In this case
these may be required to introduce additional interference suppression
measures.
2)
If two different conductor cross-sections are connected to one clamping
point, both cross-sections must lie in the range specified. If identical
cross-sections are used, this restriction does not apply.
Siemens LV 1 T · 2007
4/31
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
Type
Power loss
at IAC-51
Minimum load
current
Max. leakage
current
Rated impulse I2t value
withstand
capacity Itsm
A
W
A
mA
A
A²s
7
15
22
30
38
7
15
22
30
38
23
44
61
80
107
0.1
0.5
0.5
0.5
0.5
10
10
10
10
10
200
600
1200
1150
1150
200
1800
7200
6600
6600
7
15
22
30
38
7
15
22
30
38
31
66
91
121
160
0.1
0.5
0.5
0.5
0.5
10
10
10
10
10
300
600
1200
1150
1150
450
1800
7200
6600
6600
Type current
Rated operational current Ie
IAC-51
at 40 °C
according to
IEC 60947-4-3
for 40 °C
according to
UL/CSA
for 50 °C
A
A
3RF24 10-.AB.5
3RF24 20-.AB.5
3RF24 30-.AB.5
3RF24 40-.AB.5
3RF24 50-.AB.5
10.5
22
30
40
50
3RF24 10-.AC.5
3RF24 20-.AC.5
3RF24 30-.AC.5
3RF24 40-.AC.5
3RF24 50-.AC.5
10.5
22
30
40
50
Main circuit
4
1)
The type current provides information about the performance of the solidstate contactor. The actual permitted rated operational current Ie can be
smaller depending on the connection method and start-up conditions.
For derating see the characteristic curves on page 4/34.
Type
3RF24 ..-.AB.5
3RF24 ..-.AC.5
Main circuit
Two-phase
Three-phase
Rated operational voltage Ue
V
48 ... 600
48 ... 600
• Operating range
V
40 ... 660
40 ... 660
• Rated frequency
Hz
50/60 –10 %
50/60 –10 %
Rated insulation voltage Ui
V
600
600
Rated impulse withstand voltage Uimp
kV
6
6
Blocking voltage
V
1200
1200
Rage of voltage rise
V/µs
1000
1000
3RF24 ..-...4.
3RF24 ..-...5.
Controlled phases
Type
Control circuit
DC operation
AC operation
Rated control supply voltage Us
V
4 ... 30
190 ... 230
Rated frequency
Of the control supply voltage
Hz
--
50/60 ±10 %
Actuating voltage, max.
V
30
253
Typical actuating current
mA
30
15
Response voltage
V
4
180
Drop-out voltage
V
<1
< 40
Operating times
• ON-delay
• OFF-delay
ms
ms
1 + max. one half-wave
1 + max. one half-wave
40 + max. one half-wave
40 + max. one half-wave
Method of operation
4/32
Siemens LV 1 T · 2007
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
Fused version with semiconductor protection (similar to type of coordination "2")1)
The semiconductor protection for the 3RF24 controls can be
used with different protective devices. Siemens recommends
the use of special SITOR semiconductor fuses. The table below
lists the maximum permissible fuses for each 3RF24 controlgear.
Type
All-range
fuses gR
If a fuse is used with a higher rated current than specified,
semiconductor protection is no longer guaranteed. However,
smaller fuses with a lower rated current for the load can be used
without problems.
Semiconductor fuses aR
Cable and line protection fuses
LV HRC
design
LV HRC
design
LV HRC design
SITOR
SITOR
3NE1
3NE8
Cylindrical design
Cylindrical design
DIAZED
10 x 38 mm 14 x 51 mm 22 x 58 mm
SITOR
SITOR
SITOR
gG
3NC1 0
3NC1 4
3NC2 2
3NA
10 x 38 mm 14 x 51 mm 22 x 58 mm
gG
gG
gG
Quick
3NW
3NW
3NW
5SB
Rated operational voltage Ue up to 506 V
3RF24 10-.AB..
3RF24 10-.AC..
3NE1 813-0
3NE1 814-0
3NE8 015-1
3NE8 003-1
3NC1 020
3NC1 032
3NC1 415
3NC1 430
3NC2 220
3NC2 232
3NA3 801
3NA3 803
3NW6 001-1 3NW6 101-1 -3NW6 001-1 3NW6 101-1 --
5SB1 71
5SB1 71
3RF24 20-.A...
3NE1 802-0
3NE8 020-1
3NC1 032
3NC1 450
3NC2 263
3NA3 805
3NW6 005-1 3NW6 105-1 3NW6 205-1 5SB3 11
3RF24 30-.A...
3NE1 818-0
3NE8 022-1
3NC1 032
3NC1 450
3NC2 200
3NA3 812
--
3NW6 112-1 --
3RF24 40-.A...
3NE1 818-0
3NE8 022-1
--
3NC1 450
3NC2 200
3NA3 812
--
3NW6 112-1 3NW6 210-1 5SB3 21
3RF24 50-.A...
3NE1 818-0
3NE8 022-1
--
3NC1 450
3NC2 200
3NA3 812
--
--
3NW6 210-1 5SB3 21
5SB3 21
3RF24 10-.AB..
3RF24 10-.AC..
3NE1 813-0
3NE1 814-0
3NE8 015-1
3NE8 003-1
3NC1 016
3NC1 025
3NC1 420
3NC1 430
3NC2 220
3NC2 220
---
---
---
---
---
3RF24 20-.A...
3NE1 803-0
3NE8 018-1
3NC1 032
3NC1 450
3NC2 250
--
--
--
--
--
3RF24 30-.A...
3NE1 817-0
3NE8 021-1
3NC1 032
3NC1 450
3NC2 280
--
--
--
--
--
3RF24 40-.A...
3NE1 817-0
3NE8 022-1
--
3NC1 450
3NC2 280
--
--
--
--
--
3RF24 50-.A...
3NE1 020-2
3NE8 022-1
--
3NC1 450
3NC2 280
--
--
--
--
--
4
Rated operational voltage Ue up to 660 V
Suitable fuse holders, fuse bases and controls can be found in
Catalog LV 1, Chapter 19.
1)
Type of coordination "2" according to EN 60947-4-1:
In the event of a short-circuit, the controls in the load feeder must not
endanger persons or the installation. They must be suitable for further
operation. For fused configurations, the protective device must be
replaced.
Siemens LV 1 T · 2007
4/33
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
■ Characteristic curves
Derating curves, two-phase controlled
26
14
Module power loss PM in W
12
e
in A
24
10
8
6
22
20
18
16
14
12
10
8
4
6
4
NSB0_01675
4
2
0
0
10
20
30
40
50
Ambient temperature Ta in °C
2
0
60
0
2
4
8 10
in A
12
16 20
in A
24
24 30
in A
36
6
Device current
e
4
8 12
Device current
e
6
12 18
Device current
e
Type current 10.5 A (3RF24 10-.AB..)
25
50
Module power loss PM in W
20
e
in A
45
15
10
40
35
30
25
20
15
5
NSB0_01676
10
0
0
10
20
30
40
50
Ambient temperature Ta in °C
5
0
60
0
Type current 20 A (3RF24 20-.AB..)
40
78
Module power loss PM in W
e
in A
72
35
30
25
20
15
66
60
54
48
42
36
30
24
10
NSB0_01677
18
5
0
0
10
Type current 30 A (3RF24 30-.AB..)
4/34
Siemens LV 1 T · 2007
20
30
40
50
Ambient temperature Ta in °C
60
12
6
0
0
© Siemens AG 2007
Solid-State Contactors
110
45
100
Module power loss PM in W
50
40
e
in A
3RF24 solid-state contactors, 3-phase
35
30
25
20
15
90
80
70
60
50
40
30
10
20
NSB0_01678
5
0
10
20
30
40
50
Ambient temperature Ta in °C
0
60
0
32 40
in A
8 16 24
Device current
e
10 20 30
Device current
e
48
4
0
10
Type current 40 A (3RF24 40-.AB..)1)
120
60
45
Module power loss PM in W
in A
50
e
55
100
40
35
30
25
20
80
60
40
15
NSB0_01679
10
5
0
0
10
20
30
40
50
Ambient temperature Ta in °C
60
20
0
0
40
in A
50
Type current 50 A (3RF24 50-.AB..)1)
m a x
m a x
IE C
IE C
T h e rm
T h e rm
C u rre
C u rre
a l lim
a l lim
n t a c c
n t a c c
it c u r r e
it c u r r e
. to IE C
. to IE C
n t
n t
9
9
fo r in d
fo r s id
4 7 -4 -3
4 7 -4 -3
iv id u a l m o u
e - b y - s id e m
fo r in d iv id u
fo r s id e - b y
n tin
o u n
a l m
- s id
g
tin g
o u n tin g
e m o u n tin g
Mounting regulations
>50 (2)
NSB0_01702
>20 (0,8)
3RF2430-.AC..
3RF2440, 3RF2450
>20 (0,8)
>20 (0,8)
>20 (0,8)
3RF2410, 3RF2420
3RF2430-.AB..
>20 (0,8)
3RF2410, 3RF2420
3RF2430-.AB..
>50 (2)
3RF2430-.AC..
3RF2440, 3RF2450
>70 (2,75)
>70 (2,75)
Clearances for stand-alone and side-by-side installation
1)
Identical current/temperature curves for stand-alone and side-by-side
installation.
Siemens LV 1 T · 2007
4/35
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
Derating curves, three-phase controlled
14
Module power loss PM in W
e
in A
36
12
10
8
6
33
30
27
24
21
18
15
12
4
9
6
NSB0_01680
2
0
10
20
30
4
0
40
50
3
0
0
60
Ambient temperature Ta in °C
2
4
6
Device current
8
e
10
12
in A
Type current 10.5 A (3RF24 10-.AC..)
25
75
Module power loss PM in W
20
e
in A
70
15
10
65
60
55
50
45
40
35
30
25
20
5
NSB0_01681
15
0
0
10
20
30
40
50
Ambient temperature Ta in °C
1)
Type current 20 A (3RF24 20-.AC..)
10
5
0
60
0
3 6 9 12 15 18 21 24
Device current e in A
Identical current/temperature curves for stand-alone and side-by-side
installation.
40
Module power loss PM in W
e
in A
110
35
30
25
20
15
NSB0_01682
5
0
0
10
20
30
Type current 30 A (3RF24 30-.AC..)1)
Identical current/temperature curves for stand-alone and side-by-side
installation.
4/36
90
80
70
60
50
40
30
10
1)
100
Siemens LV 1 T · 2007
40
50
Ambient temperature Ta in °C
60
20
10
0
0 4 8 12 16 20 24 28 32 36
Device current e in A
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
50
160
Module power loss PM in W
40
e
in A
45
35
30
25
20
140
120
100
80
60
15
40
NSB0_01683
10
5
0
10
20
30
40
50
Ambient temperature Ta in °C
0
60
0
32 40
in A
8 16 24
Device current
e
10 20 30
Device current
e
48
4
0
20
Type current 40 A (3RF24 40-.AC..)1)
60
200
Module power loss PM in W
160
e
in A
180
50
140
40
120
30
100
20
80
60
40
NSB0_01684
10
0
0
10
20
30
40
50
Ambient temperature Ta in °C
60
20
0
0
40
in A
50
Type current 50 A (3RF24 50-.AC..)1)
m a x
m a x
IE C
IE C
T h e rm
T h e rm
C u rre
C u rre
a l lim
a l lim
n t a c c
n t a c c
it c u r r e
it c u r r e
. to IE C
. to IE C
n t
n t
9
9
fo r in d
fo r s id
4 7 -4 -3
4 7 -4 -3
iv id u a l m o u
e - b y - s id e m
fo r in d iv id u
fo r s id e - b y
n tin
o u n
a l m
- s id
g
tin g
o u n tin g
e m o u n tin g
Mounting regulations
>50 (2)
NSB0_01702
>20 (0,8)
3RF2430-.AC..
3RF2440, 3RF2450
>20 (0,8)
>20 (0,8)
>20 (0,8)
3RF2410, 3RF2420
3RF2430-.AB..
>20 (0,8)
3RF2410, 3RF2420
3RF2430-.AB..
>50 (2)
3RF2430-.AC..
3RF2440, 3RF2450
>70 (2,75)
>70 (2,75)
Clearances for stand-alone and side-by-side installation
1)
Identical current/temperature curves for stand-alone and side-by-side
installation.
Siemens LV 1 T · 2007
4/37
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
■ Dimensional drawings
Type current 10.5 A
Screw terminal
3RF24 10-1....
Spring-loaded terminal
3RF24 10-2....
25
4
73
88
105
5
104,5
14,4 14,4
Ø 4,5
30
45
5
Type current 20 A; 30 A (two-phase controlled)
Spring-loaded terminal
3RF24 20-2....
b
30
14,4 14,4
Ø 4,5
77
NSB0_01691
14,5
99,5
112,5
47,5
69
90
100
77
25
5
Screw terminal
3RF24 .0-1....
33
45
View A
A
b
3RF2420-.AB..
67
3RF2420-.AC..
3RF2430-.AB..
89,5
4/38
Siemens LV 1 T · 2007
View A
77
NSB0_01690a
14,5
95
100
47,5
69
90
Spring-loaded
terminals
© Siemens AG 2007
Solid-State Contactors
3RF24 solid-state contactors, 3-phase
Type current 30 A (three-phase controlled); 40 A, 50 A
Screw terminal
3RF24 .0-1....
Ring terminal lug
3RF24 50-3....
NSB0_01692
14,5
69
47,5
69
e
a
86
104,5
108
121
31,5
b
d
14,4 14,4
Ø 4,5
View A
4
45
View A
A
a
b
d
e
3RF2430-.AC..
3RF2440-.AB..
100
113,5
100
85
3RF2440-.AC..
3RF2450-.AB..
100
157,5
146
80
3RF2450-.AC..
180
157,5
146
160
■ Schematics
Two-phase controlled,
DC control supply voltage
L2
1 L1
5 L3
A1 +
3 L2
5 L3
A1 +
PE
A2 -
4
T2
6
NSB0_01685
2 T1
A2 -
T3
Two-phase controlled,
AC control supply voltage
1 L1
3
L2
2 T1
4 T2
6
T3
Three-phase controlled,
AC control supply voltage
1 L1
5 L3
A1
PE
3 L2
5 L3
A1
PE
A2
4
T2
6
T3
A2
NSB0_01686
2 T1
NSB0_01687
3
PE
2 T1
4
T2
6
T3
NSB0_01688
1 L1
Three-phase controlled,
DC control supply voltage
Siemens LV 1 T · 2007
4/39
© Siemens AG 2007
3RF29 Function Modules
General data
■ Overview
Function modules for SIRIUS 3RF2 solid-state switching
devices
A great variety of applications demand an expanded range of
functionality. With our function modules, these requirements can
be met really easily. The modules are mounted simply by clicking them into place; straight away the necessary connections
are made with the solid-state relay or contactor. The plug-in
connection to control the solid-state switching devices can
simply remain in use.
The following function modules are available:
• Converters
• Load monitoring
• Heating current monitoring
• Power control regulators
• Power controllers
With the exception of the converter, the function modules can be
used only with single-phase solid-state switching devices.
■ Technical specifications
Type
3RF29 ..-.E...
3RF29 ..-.F...
3RF29 ..-.G...
3RF29 ..-.H...
General data
4
Ambient temperature
• During operation, derating from 40 °C
°C
-25 ... +60
• During storage
°C
-55 ... +80
Installation altitude
m
0 ... 1000; derating from 1000
Shock resistance
According to IEC 60068-2-27
g/ms
15/11
Vibration resistance
According to IEC 60068-2-6
g
2
IP20
Degree of protection
Electromagnetic compatibility (EMC)
• Emitted interference
- Conducted interference voltage
according to IEC 60947-4-3
- Emitted, high-frequency interference
voltage according to IEC 60947-4-3
Class A for industrial applications1)
Class A for industrial applications
• Interference immunity
- Electrostatic discharge
kV
according to IEC 61000-4-2
(corresponds to degree of severity 3)
- Induced RF fields
MHz
according to IEC 61000-4-6
- Burst according to IEC 61000-4-4
- Surge according to IEC 61000-4-5
kV
Contact discharge 4; air discharge 8; behavior criterion 2
0.15 ... 80; 140 dBmV; behavior criterion 1
2 kV/5.0 kHz; behavior criterion 1
Conductor - ground 2; conductor - conductor 1; behavior criterion 2
Connection, auxiliary/control
contacts, screw terminal
• Conductor cross-section
mm2
1 x (0.5 ... 2.5), 2 x (0.5 ... 1.0), 1 x (AWG 20 ... 12)
• Stripped length
mm
7
• Terminal screw
M3
• Tightening torque
Nm
lb. in
Converter, feed-through opening
mm
• Diameter
1)
0.5 ... 0.6
4.5 ... 5.3
--
7
Note limitations for power controller function modules. These modules
were built as Class A devices. The use of these devices in residential areas
could result in lead in radio interference. In this case these may be
required to introduce additional interference suppression measures.
4/40
Siemens LV 1 T · 2007
17
3RF29 ..-.J...
3RF29 ..-.K...
© Siemens AG 2007
3RF29 Function Modules
General data
Type
3RF29 ..-.E..8
3RF29 ..-.F..8
3RF29 ..-.G..3
3RF29 ..-.G..6
400 ... 600
340 ... 660
Main circuit
Rated operational voltage Ue
• Operating range
• Rated frequency
V
V
Hz
-- 1)
---
110 ... 230
93.5 ... 253
50/60
Rated insulation voltage Ui
V
--
600
V
--
93.5 ... 253
%
--
20
Voltage measuring
• Measuring range
Mains voltage, fluctuation
compensation
1)
340 ... 660
Versions are independent of the main circuit.
Type
3RF29 ..-.H..3
3RF29 ..-.K..3
3RF29 ..-.H..6
3RF29 ..-.K..6
3RF29 ..-.J..3
3RF29 ..-.J..6
400 ... 600
340 ... 660
110 ... 230
93.5 ... 253
400 ... 600
340 ... 660
340 ... 660
93.5 ... 253
340 ... 660
V
V
Hz
110 ... 230
93.5 ... 253
50/60
Rated insulation voltage Ui
V
600
V
93.5 ... 253
%
20
Voltage measuring
• Measuring range
Mains voltage, fluctuation
compensation
Type
3RF29 ..-...0.
3RF29 ..-...1.
3RF29 ..-...3.
4
Main circuit
Rated operational voltage Ue
• Operating range
• Rated frequency
Control circuit
DC operation
AC/DC operation
AC operation
Rated control supply voltage Us
Rated control current
V
mA
24
15
24
15
110
15
Rated frequency of the control supply
voltage
Hz
--
50/60
50/60
Actuating voltage, max.
V
30
30
121
Rated control current
At maximum voltage
mA
15
15
15
Response voltage
• For tripping current
V
mA
15
2
15
2
90
2
Drop-out voltage
V
5
5
15
Method of operation
Type
3RF29 20-0FA08
3RF29 20-0GA..
3RF29 50-0GA..
3RF29 90-0GA..
Current measurement
Rated operational current Ie
A
20
20
50
90
Current measurement
• Teach range
• Measuring range
• Minimum partial load current
A
A
A
0.65 ... 20
0 ... 22
0.65
0.56 ... 20
0 … 22
0.65
1.62 ... 50
0 … 55
1.6
2.93 ... 90
0 … 99
2.9
Number of partial loads
1 ... 6
1 ... 12
Type
3RF29 20-0HA..
3RF29 50-0HA..
3RF29 90-0HA..
3RF29 16-0JA..
3RF29 32-0JA..
Current measurement
Rated operational current Ie
A
20
50
90
16
32
Current measurement
• Teach range
• Measuring range
• Minimum partial load current
A
A
A
4 ... 20
0 ... 22
--
10 ... 50
0 ... 55
18 ... 90
4 ... 99
0.42 ... 16
0 ... 16
0.42
0.8 ... 32
0 ... 32
0.8
Number of partial loads
--
1 ... 6
Type
3RF29 04-0KA..
3RF29 20-0KA..
3RF29 50-0KA..
3RF29 90-0KA..
Current measurement
Rated operational current Ie
A
4
20
50
90
Current measurement
• Teach range
• Measuring range
• Minimum partial load current
A
A
A
0.15 ... 4
0 ... 4
--
0.65 ... 20
0 ... 22
0.65
1.6 ... 50
0 ... 55
1.6
2.9 ... 90
0 ... 99
2.9
Number of partial loads
1 ... 6
Siemens LV 1 T · 2007
4/41
© Siemens AG 2007
3RF29 Function Modules
Converters
■ Overview
Converters for 3RF2 solid-state switching devices
These modules are used to convert analog control signals, such
as those output from many temperature controllers for example,
into a pulse-width-modulated digital signal. The connected
solid-state contactors and relays can therefore regulate the
output of a load as a percentage.
■ Design
Mounting
4
Easy snapping onto the 3RF21 solid-state relays or 3RF23 solidstate contactors establishes the connections to the solid-state
switching devices. The connector on the solid-state switching
devices from the control circuit can be plugged onto the
converter without rewiring.
■ Function
The analog value from a temperature controller is present at the
0 ... 10 V terminals. This controls the on-to-off period, as a
function of voltage. The period duration is predefined at one
second. Conversion of the analog voltage is linear in the voltage
range from 0.1 to 9.9 V. At voltages below 0.1 V the connected
switching device is not activated, while at voltages above 9.9 V
the connected switching device is always activated.
4/42
Siemens LV 1 T · 2007
© Siemens AG 2007
3RF29 Function Modules
Load monitoring
Load monitoring for 3RF2 single-phase solid-state switching
devices
Many faults can be quickly detected by monitoring a load circuit
connected to the solid-state switching device, as made possible
with this module. Examples include the failure of load elements
(up to 6 in the basic version or up to 12 in the extended version),
alloyed power semiconductors, a lack of voltage or a break in a
load circuit. A fault is indicated by one or more LEDs and
reported to the controller by way of a PLC-compatible output.
The principle of operation is based on permanent monitoring of
the current strength. This figure is continuously compared with
the reference value stored once during commissioning by the
simple press of a button. In order to detect the failure of one of
several loads, the current difference must be 1/6 (in the basic
version) or 1/12 (in the extended version) of the reference value.
In the event of a fault, an output is actuated and one or more
LEDs indicate the fault.
■ Design
Mounting
Easy snapping onto the 3RF21 solid-state relays or 3RF23 solidstate contactors establishes the connections to the solid-state
switching devices. Because of the special design, the straightthrough transformer of the load monitoring module covers the
lower main circuit connection. The cable to the load is simply
pushed through and secured with the terminal screw.
■ Function
The function module is activated when an "ON" signal is applied
(IN terminal). The module constantly monitors the current level
and compares this with the setpoint value.
Startup
Pressing the Teach button or actuating the input IN2 switches
the device on; the current through the solid-state switching
device is detected and is stored as the setpoint value. During
this process the two lower (red1)) LEDs flash alternately;
simultaneous maintained light from the 3 (red1)) LEDs indicates
the conclusion of the teaching process.
The Teach button can also be used to switch on the connected
solid-state switching device briefly for test purposes. In this case
the "ON" LED is switched on.
Partial load faults, "Basic" load monitoring
If a deviation of at least 1/6 of the stored setpoint value is
detected, a fault is signaled. The fault is indicated by a "Fault"
LED and by activation of the fault signaling output.
LED
OK
Fault
Partial load
failure/
Load shortcircuit
Thyristor defect
Mains failure/
Fuse rupture
ON/OFF
✓
✓
--
✓
Current
flowing
✓
✓
✓
--
Group fault
--
✓
✓
✓
✓ LED is lit
-- LED is not lit
Partial load faults, "Extended" load monitoring
Depending on the setting of the "response time" potentiometer, a
deviation of at least 1/12 of the stored setpoint value after a
response time of between 100 ms and 3 s is signaled as a fault.
The fault is indicated by a "Load" LED and by activation of the
fault signaling output.
The potentiometer can also be used to determine the response
behavior of the fault signaling output. When delay values are set
in the left-hand half, the fault signal is stored. This can only be
reset by switching on and off by means of the control supply
voltage.
When settings are made on the right-hand side, the fault output
is automatically reset after the deviation has been corrected.
Voltage compensation, "Extended" load monitoring
In addition to the current, the load voltage is also detected.
This makes it possible to compensate for influences on the
current strength resulting from voltage fluctuations.
Thyristor fault
If a current greater than the leakage current of the controls is
measured in the deenergized state, the device triggers a thyristor fault after the set delay time. This means that the fault output
is activated and the "Fault" ("Thyristor"1)) LED lights up.
Supply fault
If no current is measured in the energized state, the device
triggers a supply fault after the set delay time. This means
that the fault output is activated and the "Fault" ("Supply"1)) LED
lights up.
1)
Only "Extended" load monitoring
Siemens LV 1 T · 2007
4/43
4
■ Overview
© Siemens AG 2007
3RF29 Function Modules
Heating current monitoring
■ Overview
■ Function
Heating current monitoring for 3RF2 single-phase solidstate switching devices
Many faults can be quickly detected by monitoring a load circuit
connected to the solid-state switching device, as made possible
with this module. Examples include the failure of up to 6 load
elements, alloyed power semiconductors, a lack of voltage or a
break in a load circuit. A fault is indicated by LEDs and reported
to the controller by way of a relay output (NC contact).
4
The principle of operation is based on permanent monitoring of
the current strength. This figure is continuously compared with
the reference value stored once during commissioning. In order
to detect the failure of one of several loads, the current difference
must be 1/6 of the reference value. In the event of a fault, an
output is actuated and the LEDs indicate the fault.
The heating current monitoring has a teach input and therefore
differs from the load monitoring. This remote teaching function
enables simple adjustment to changing loads without manual
intervention.
■ Design
Mounting
Easy snapping onto the 3RF21 solid-state relays or 3RF23
solid-state contactors establishes the connections to the solidstate switching devices. Because of the special design, the
straight-through transformer of the heating current monitoring
module covers the lower main circuit connection. The cable to
the load is simply pushed through and secured with the terminal
screw.
The function module is activated when an "ON" signal is applied
(IN1 terminal). The module constantly monitors the current level
and compares this with the setpoint value.
Startup
Actuating the input IN2 switches the device on; the current
through the solid-state switching device is detected and is
stored as the setpoint value. During this process the two lower
(red) LEDs flash alternately; simultaneous maintained light from
the 3 (red) LEDs indicates the conclusion of the teaching
process.
Partial load faults
Depending on the setting of the "response time" potentiometer, a
deviation of at least 1/6 of the stored setpoint value after a
response time of between 100 ms and 3 s is signaled as a fault.
The fault is indicated by a "Load" LED and by activation of the
fault signaling output.
The potentiometer can also be used to determine the response
behavior of the fault signaling output. When delay values are set
in the left-hand half, the fault signal is stored. This can only be
reset by switching on and off by means of the control supply
voltage.
When settings are made on the right-hand side, the fault output
is automatically reset after the deviation has been corrected.
Voltage compensation
In addition to the current, the load voltage is also detected.
This makes it possible to compensate for influences on the
current strength resulting from voltage fluctuations.
Thyristor fault
If a current greater than the leakage current of the controls is measured in the deenergized state, the device triggers a thyristor
fault after the set delay time. The fault output is activated and
the "Thyristor" LED lights up.
Supply fault
If no current is measured in the energized state, the device
triggers a supply fault after the set delay time. The fault output
is activated and the "Supply" LED lights up.
4/44
Siemens LV 1 T · 2007
© Siemens AG 2007
3RF29 Function Modules
Power control regulators
■ Overview
Generalized phase control
Power control regulators for 3RF2 single-phase solid-state
switching devices
If the left potentiometer tR is set to greater than 0 s, then the
power control regulator operates according to the principle of
generalized phase control.
The power control regulator is a function module for the autonomous power control of complex heating systems and inductive
loads, for the operation of loads with temperature-dependent
resistors and for simple indirect control of temperature.
In order to observe the limit values of the conducted interference
voltage for industrial networks, the load circuit must include a
reactor with a rating of at least 200 µH.
The power control regulator can be used on the instantaneously
switching 3RF21 and 3RF23 solid-state switching devices
(single-phase). If only the full-wave operating mode is used,
the power control regulator can also be used on the "zero-point
switching" solid-state relays and contactors.
The setpoint selection is set either internally with the right-hand
potiometer P to 0 ... 100 % on the module or externally using the
analog input 0 ... 10 V.
Modulation
4
100
180°
%
90°
50
0°
0
NSB0_01693
Special versions
In the case of full-wave control, 100 % corresponds to
continuously On and, in the case of generalized phase control,
to a conduction angle of 180° - and therefore maximum output.
Conduction angle
The following functions have been integrated:
• Power control regulator for adjusting the power of the
connected load. Here, the setpoint value is set with a rotary
knob on the module as a percentage with reference to the
100 % power stored as a setpoint value.
• Inrush current limitation: With the aid of an adjustable voltage ramp, the inrush current is limited by means of phase
control. This is useful above all with loads such as lamps or
infrared lamps which have an inrush transient current.
• Load circuit monitoring for detecting load failure, partial load
faults, alloyed power semiconductors, lack of voltage or a
break in the load circuit.
Setpoint selection
3RF29 04-0KA13-0KC0
< 0,1
During the Teaching process the connected solid-state relay or
contactor is not activated; i.e. no current flow takes place.
No current reference value is stored. No part-load monitoring!
5,0
V
> 9,9
External setpoint of analog voltage 0 ... 10 V
0
3RF29 04-0KA13-0KT0
No part-load monitoring!
■ Design
Mounting
Easy snapping onto the 3RF21 solid-state relays or 3RF23 solidstate contactors establishes the connections to the solid-state
switching devices. Because of the special design, the straightthrough transformer of the function module covers the lower
main circuit connection. The cable to the load is simply pushed
through and secured with the terminal screw.
■ Function
Power control
The power control regulator sets the load current of the solidstate switching device depending on a setpoint value as a
percentage. It does not compensate for changes in the mains
voltage or load resistance. The modulation, the On/Off ratio or
the phase angle, remains unchanged according to the setpoint
value. The autonomous power control is performed between 0
and 100 % of the setpoint selection
Full-wave control
If the left potentiometer tR is set to 0 s (= far left), then the power
control regulator operates according to the principle of full-wave
control. The power set, be it internal or external, is converted into
a pulse-width-modulated digital signal. The power control regulator controls the On and Off time of the solid-state switching
device within a fixed period duration of 1 s so that the selected
power is applied to the load. The "ON" LED flashes in the same
rhythm as the solid-state switching device switches on and off.
50
%
100
Internal setpoint of potentiometer P
Input characteristic
Internal setpoint selection
In the case of internal setpoint selection, the module is controlled
over the IN terminal. Terminal 10 has no function.
External setpoint selection
With external setpoint selection (potentiometer P far left = 0 %)
the module is actuated by applying the analog voltage 0 ... 10 V.
0 ... 10 V corresponds to 0 ... 100 % power. Conversion of the
voltage is linear between 0.1 and 9.9 V. Below 0.1 V the
switching device stays switched off; a voltage greater than 9.9 V
corresponds to 100 % power.
Inrush current limitation
The ramp time (tR) for a voltage ramp on switching on is set with
the left potentiometer for the purpose of inrush current limitation.
The set time refers to a power of 100 %. If, for example, a ramp
time of 10 s is set and the power setpoint selection is 60 %, then
the power of 60 % will be reached after approx. 6 s.
Line, load and thyristor monitoring
The power control regulator identifies partial load faults, mains
failure and thyristor faults. The faults are indicated by the LEDs
on the module and the fault output is actuated. The reference for
the load monitoring is the taught value. A maximum of 6 partial
loads can be monitored.
The response delay in the event of a fault amounts to approx.
100 ms in the case of full-wave control. In the case of
generalized phase control and setpoint values > 50 % the
response delay amounts to 500 ms from the end of the ramp
time.
The detection of partial load faults takes place only in the control
range from 20 to 100 %.
Siemens LV 1 T · 2007
4/45
© Siemens AG 2007
3RF29 Function Modules
Power controllers
■ Overview
Setpoint selection
Power controllers for 3RF2 single-phase solid-state
switching devices
The power controller is a function module for the autonomous
power control of complex heating systems, for the operation of
loads with temperature-dependent resistors and for simple
indirect control of temperature.
4
The power controller can be used on the 3RF21 and 3RF23
instantaneous switching solid-state switching devices (singlephase). If only the full-wave operating mode is used, the power
controller can also be used on the zero-point-switching solidstate relays and contactors.
The following functions have been integrated:
• Power control regulator with proportional-action control
for adjusting the power of the connected load. Here, the
setpoint value is set with a rotary knob on the module as a
percentage with reference to the 100 % power stored as a
setpoint value. Changes in the mains voltage or in the load
resistance are compensated in this case.
• Inrush current limitation: With the aid of an adjustable
voltage ramp, the inrush current is limited by means of phase
control. This is useful above all with loads such as lamps
which have an inrush transient current.
• Load circuit monitoring for detecting load failure, alloyed
power semiconductors, lack of voltage or a break in the load
circuit.
■ Design
External setpoint selection
At 0 % on the potentiometer the setpoint selection is set using
an external 0 ... 10 V analog signal (terminals IN / 0 ... 10 V).
The device is switched on and off via the power supply
(terminals A1 / A2).
Internal setpoint selection
Above 0 % the setpoint is set using the potentiometer. To allow
this, the potential at terminal A1 must additionally be applied at
the IN terminal. After removal of the "ON" signal, the switching
module is switched off.
Inrush current limitation
The ramp time (tR) for a voltage ramp on switching on is set with
the left potentiometer for the purpose of inrush current limitation.
If a time longer than 0 s is set, the device operates according to
the generalized phase control principle. If 0 s is set, there is no
voltage ramp and the device operates according to the principle
of full-wave control.
Load fault
If upon switching on with voltage applied the current flowing is
not greater than the leakage current of the control, the device
triggers a load fault. The fault relay is activated and the "Load"
LED lights up.
Thyristor fault
Mounting
Easy snapping onto the 3RF21 solid-state relays or 3RF23 solidstate contactors establishes the connections to the solid-state
switching devices. Because of the special design, the straightthrough transformer of the function module covers the lower
main circuit connection. The cable to the load is simply pushed
through and secured with the terminal screw.
■ Function
Power control
The power controller adjusts the current in the connected load
by means of a solid-state switching device depending on a
setpoint value. Changes in the mains voltage or in the load
resistance are thus compensated by the power controller. The
setpoint value can be predefined externally as a 0 to 10 V signal
or internally by means of a potentiometer. Depending on the
setting of the potentiometer (tR), the adjustment is carried out
according to the principle of full-wave control or generalized
phase control.
Full-wave control
In this operating mode the output is adjusted to the required
setpoint value changing the on-to-off period. The period duration
is predefined at one second.
Generalized phase control
In this operating mode the output is adjusted to the required
setpoint value by changing the current flow angle. The halfwaves of the current are adjusted to produce the selected
setpoint value of the power at the load.
In order to observe the limit values of the conducted interference
voltage for industrial networks, the load circuit must include a
reactor with a rating of at least 200 µH.
4/46
The setpoint selection is set either internally with the right-hand
potiometer P to 0 ... 100 % on the module or externally using the
analog input 0 ... 10 V AC/DC.
Siemens LV 1 T · 2007
If a current greater than the leakage current of the control is
measured in the deenergized state, the device triggers a
thyristor fault. The fault relay is activated and the "Thyristor" LED
lights up.
Supply fault
If no current is measured in the energized state, the device
triggers a supply fault. The fault relay is activated and the
"Supply" LED lights up.
Startup
Pressing the "Teach" button switches the device on; the current
through the solid-state switching device and the mains voltage
are detected and stored. The resultant output is taken as the
100 % output for the setpoint selection. During this process the
two lower red LEDs flash alternately. Simultaneous maintained
light from the three red LEDs indicates the completion of the
"Teach" process.
The "Teach" button can also be used to switch on the connected
solid-state switching device briefly for test purposes. In this case
the "ON" LED is switched on.
© Siemens AG 2007
3RF29 Function Modules
Project planning aids
■ Dimensional drawings
Converters
Basic load monitoring
3RF29 00-0EA18
3RF29 ..-0FA08
2 1 ,5
2 5 ,5
2 1 ,5
2 2 ,5
1 0 1 ,5
8 3 ,5
2 2 ,5
N S B 0 _ 0 1 4 3 5
2 5 ,5
1 9 ,5
3 8
4
N S B 0 _ 0 1 4 3 4
1 2 ,5
3 8 ,5
2 8 ,5
"Extended" load monitoring and heating current monitoring
Power controllers
3RF29 ..-0GA.. and -0JA..
3RF29 ..-0KA.., 3RF29 ..-0HA..
4 4
4 0
4 4
4 0
4 5
3 8
1 1 1 ,5
3 1 ,5
3 8
N S B 0 _ 0 1 4 4 4
2 9 ,5
N S B 0 _ 0 1 4 4 3
2 9 ,5
1 1 1 ,5
4 5
3 1 ,5
■ Schematics
Extended load monitoring
Heating current monitoring
3)
A1+
1)
0V -
IN
A1 +
10 V +
14
IN2/Ref
12
comp.
3)
2)
L/N
A1 +
1)
A2 –
11
<
NSB0_01468a
A1 +
A2 -
NSB0_01467
1)
A2 –
1)
2)
3)
IN1/ON
A2 -
Basic load monitoring
1)
3)
A1 +
A2 –
IN/0 –
10 V +
11
NC
<
NSB0_01529
NSB0_01466
1)
Power controllers
12
comp.
3)
2)
L/N
11
NC
<
NSB0_01469a
Converters
12
comp.
3)
2)
L/N
IN
2)
OUT
Internal connection.
Straight-through transformers.
3)
Voltage measuring not electrically isolated (3 MW per path).
Siemens LV 1 T · 2007
4/47
© Siemens AG 2007
3RF29 Function Modules
Project planning aids
Switching examples
Converter
Basic load monitoring
1/N/PE 50 Hz/230 V
1/N/PE 50 Hz 230 V
AC/DC 24 V
L
N
DC 24 V
L +/~
L
L+
L –/~
N
L–
PE
PE
F1
F2
F1
S1
ON/OFF
K1
1
L
A1 +
A2 –
~
A1 +
1)
PE
A1
1 L
A1 +
A2 –
L– L+
1)
A1+
<
SPS/PLC
A2 –
0V–
D out
IN
10 V +
10 V +
2)
2 T
D in
OUT
NSB0_01460b
NSB0_01459c
4
T
3)
A1
A2 ~
–
0V–
2
K1
R
Extended load monitoring
L1
R2
R3
R4
R5
R6
Power controllers
3/N/PE 50 Hz 230/400 V
L1
L2
DC 24 V
L2
L3
L+
L3
L–
N
4)
N
R1
3/N/PE 50 Hz 230/400 V
DC 24 V
L+
4)
L–
6)
PE
PE
F1
F1
7)
L1
K1
5)
1 L
3)
PE
A1 +
A2 -
K1
A1
L– L+
A1 +
1)
3)
<
D in
R6
L/N
12
R7
R8
2)
R9
R10
R11
R12
5)
2)
6)
Internal connection to the solid-state relay/contactor.
Straight-through transformer.
3)
Make PE/ground connection according to installation regulations.
4) Connection of L/N contact with:
- Load monitoring/power controller 3RF29 ..-0.A.3
on neutral conductor N (e.g. 230 V),
- Load monitoring/power controller 3RF29 ..-0.A.6
on a second phase (e.g. 400 V).
Siemens LV 1 T · 2007
A out +
D in
5)
1)
4/48
A out –
11
NC
comp.
NSB0_01436c
NSB0_01461c
R5
10 V +
2 T
12
2)
R4
A2 –
IN/0 –
5)
R3
L– L+
A1 +
1)
11
comp.
R2
A1 +
D out
14
2 T
5)
A2 –
A2 –
IN
R1
PE
A1
1 L
L/N
R1
Voltage measuring not electrically isolated (3 MW per path).
Grounding of connection L- is recommended.
7)
A 200 mH choke must be used when operating with leading-edge phase in
order to observe the limit values of the conducted interference voltage
according to Class A.