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14
These technical guides
help you comply with
installation standards
and rules i.e.:
the electrical installation
guide, the protection
guide, the switchboard
implementation guide,
the technical booklets
and the co-ordination
tables all form genuine
reference tools for
the design of high
performance electrical
installations.
For example, the LV
protection co-ordination
guide - discrimination and
cascading - optimises
choice of protection and
connection devices while
also increasing markedly
continuity of supply in the
installations.
Compact NS
Masterpact NW
Functions and characteristics
Presentation
6
Selection guide for DC circuit breakers
16
Types of DC distribution systems
Solutions depending on the distribution system and the voltage
16
17
Series connection of poles
Parallel connection of poles
17
18
Examples of circuit-breaker selection
19
Calculation of DC distribution-system characteristics
21
Short-circuit currents
L/R time constant
21
Panorama of electrical and mechanical accessories
22
Compact NS100 to NS630
Masterpact NW10 to NW40
22
24
General characteristics
26
Compliance with standards
Pollution degree
Tropicalisation
Environmental protection
Ambient temperature
Altitude
Positive contact indication
Vibrations
Installation in class II switchboards
Electromagnetic compatibility
Degree of protection
26
26
26
26
27
27
27
28
28
28
29
Circuit-breaker characteristics
30
Compact NS100 to NS630
Masterpact NW10 to NW40
30
32
Trip-unit characteristics
34
Types of trip units
Trip units for Compact NS
Trip units for Masterpact NW
34
34
36
Communication
38
COM option in Masterpact NW
Compact NS
38
39
Electrical and mechanical accessories
40
Compact NS100 to 630
Masterpact NW10 to NW40
40
50
Dimensions and connection
Electrical diagrams
Installation recommendations
Additional characteristics
Catalogue numbers and order form
61
87
103
121
143
15
Functions
and characteristics
Selection guide for DC circuit
breakers
Types of DC distribution systems
There are three types of DC distribution
systems (see the table).
The operational voltage in conjunction with
one of the three systems determines the
number of poles taking part in current
interruption.
Selection of a circuit breaker depends essentially on the distribution-system
parameters presented below which are used to determine the corresponding
characteristics:
b type of system - determines the type of product and the number of poles
connected in series for each polarity
b rated voltage - determines the number of series poles taking part in current
interruption
b nominal current - determines the rated current of the circuit-breaker
b maximum short-circuit current at the point of installation - determines the breaking
capacity.
0
Types of systems
Earthed systems
Isolated systems
The source has one earthed polarity (1)
Diagrams and different faults
Fault analysis (neglecting resistance of earth electrodes)
Fault A
b maximum Isc at U
b only protected polarity concerned
b all poles of protected polarity must have
breaking capacity u Isc max. at U
Fault B
b maximum Isc at U
b if only one polarity (the positive here) is
protected, all poles of protected polarity must
have breaking capacity u Isc max. at U
b if both polarities are protected, to enable
disconnection, all poles of the two polarities
must have breaking capacity u Isc max. at U
Fault C
No consequences
Double fault
Double fault not possible,
A and D or C and system trips on first fault
E
Most unfavourable cases
Fault A and fault B (if only one polarity is
protected)
b maximum Isc at U/2
b only positive polarity concerned
b all poles of positive polarity must have
breaking capacity u Isc max. at U/2
b maximum Isc at U
b both polarities are concerned
b all poles of the two polarities must have
breaking capacity u Isc max. at U
DB105018
DB105017
DB105016
The source has an earthed mid-point
b no consequences
b the fault must be indicated by an IMD
(insulation-monitoring device) and cleared
(standard IEC/EN 60364)
b maximum Isc at U
b both polarities are concerned
b all poles of the two polarities must have
breaking capacity u Isc max. at U
b same as fault A
b same as fault A with the same obligations
b all poles of the
negative polarity must have breaking capacity
u Isc max. at U/2
Double fault not possible,
b maximum Isc at U
system trips on first fault
b only positive polarity (cases A and D) or
negative (C and E) concerned
b all poles of each polarity must have breaking
capacity u Isc max. at U
Fault B
Double fault A and D or C and E
Conclusion: selection of number of poles and breaking capacity
Layout of protection poles
b on only one polarity (1)
b identical for each polarity
Number of series poles
Per polarity
b all on same polarity
b equal
Total
b 1, 2 or 3 without disconnection
b 2 or 4 (2)
b 2, 3 or 4 with disconnection
Breaking capacity
b all poles of the protected polarity u Isc max. b all poles of both polarities u Isc max. at U
at U
b all poles of each polarity u Isc max. at U/2
Disconnection of both polarities (3)
Possible by adding a pole to the non-protected b ensured
polarity
Implementation
See the selection table opposite
(1) Positive or negative, depending on the polarity connected to the exposed conductive parts.
(2) A 3P circuit breaker can be used if a 2P version does not exist. In this case, the central pole is not connected.
(3) Disconnection made possible by multi-pole breaking.
16
b identical for each polarity
b equal
b 2 or 4 (2)
b all poles of each polarity u Isc max. at U
b ensured
Selection guide for DC circuit
breakers
Solutions depending on the
distribution system and the voltage
Functions
and characteristics
0
Series connection of poles
Type of distribution system
2
2
DB105002
Isolated
Isolated polarities
DB105001
Mid-point connected to earth
DB105000
Protected polarities
Diagrams
(and types of faults)
Earthed
One polarity (negative here) connected to earth
(or exposed conductive parts)
1 (disconnection of 1P)
2 (disconnection of 2P)
DB104999
Type
Source
Selection of circuit breaker and pole connection
Compact NS
Two-pole (1).
Single-pole.
Two-pole (1).
DB105004
DB105004
DB105004
DB105003
24 V y Un y 250 V
Two-pole (1).
Two-pole (1).
Two-pole (1).
Three-pole.
DB105007
DB105004
DB105006
DB105005
250 V < Un y 500 V
Four-pole.
Three-pole.
Four-pole.
DB105007
DB105009
DB105008
500 V < Un y 750 V
Four-pole.
Masterpact NW
Version C.
Version C.
DB105010
DB105010
DB105010
Type N
24 V y Un y 500 V
Version C.
Version D.
Version C.
DB105012
DB105010
DB105011
Type H
24 V y Un y 500 V
Version E.
Version D.
Version E.
DB105012
DB105012
DB105011
500 V < Un y 750 V
Version E.
Version D.
Version E.
(1) A 3P circuit breaker can be used if a 2P version does not exist. In this case, the central pole is not connected.
DB105012
DB105012
DB105011
750 V < Un y 900 V
Version E.
17
Selection guide for DC circuit
breakers
Solutions depending on the
distribution system and the voltage
Functions
and characteristics
0
Parallel connection of poles
Type of distribution system
2
2
DB105002
Isolated
Isolated polarities
DB105001
Mid-point connected to earth
DB105000
Protected polarities
Diagrams
(and types of faults)
Earthed
One polarity (negative here) connected to earth
(or exposed conductive parts)
1 (disconnection of 1P)
2 (disconnection of 2P)
DB104999
Type
Source
Selection of circuit breaker and pole connection
Compact NS
Two, three-pole, 2, 3P in
Four-pole, 2 x 2P in parallel.
parallel, four-pole, 4P in parallel.
DB105014
DB105014
DB105014
DB105013
Un y 250 V
Four-pole, 2 x 2P in parallel.
Four-pole, 2 x 2P in parallel.
DB105014
DB105015
250 V < Un y 500 V
Four-pole, 2 x 2P in parallel,
connected in series.
Four-pole, 2 x 2P in parallel.
Breaking capacity of parallel solutions
Un y 250 V
Two-pole
Three-pole
Four-pole
2 poles in parallel
3 poles in parallel
4 poles in parallel
2 x 2 poles in parallel, connected in series
N
85
-
250 V < Un y 500 V
H
100
-
DC
100
100
100
N
-
H
-
DC
100
Comparison of series and parallel connection in terms of performance
Series connection of poles divides the
voltage per pole and optimises breaking
capacity for high-voltage systems.
Series connection of poles on a DC circuit breaker is the means to:
b divide the system voltage by the number of poles
b use the rated current for each pole
b use the breaking capacity of the circuit breaker for all the poles.
For example, a Compact NS630, 3P DC type, with the three poles connected in
series, provides:
b a maximum voltage of 750 V (250 V per pole)
b a rated current of 630 A
b a breaking capacity of 100 kA / 750 V.
Consequently, a 630 A / 250 V device can be used in a 750 V system.
Parallel connection of poles divides the
current per pole and optimises the rated
current for systems that do not exceed the
withstand voltage of each pole.
The maximum useable rating and the value
of the magnetic setting are indicated
on pages 110 and 111.
Parallel connection of poles, on the contrary, imposes the system voltage on each
pole, but is the means to:
b divide the current flowing through each pole by the number of poles
b increase the rated current.
For example, the same Compact NS630 DC 3P circuit breaker with three poles in
parallel provides:
b a maximum voltage of 250 V (250 V per pole)
b a rated current of 1500 A (see table on page 111)
b a breaking capacity of 100 kA / 250 V.
Consequently, a 630 A device used in a 250 V system can handle 1500 A.
18
Functions
and characteristics
Selection guide for DC circuit
breakers
Examples of circuit-breaker selection
0
Selection of a Compact NS
Example 1
type of system - mid-point connected to earth
system voltage - Un = 500 V DC with time constant L/R = 5 ms
rated current required at point of installation In = 250 A
short-circuit current at the point of installation Isc = 60 kA
Selection constraints - see page 16
The system with the mid-point connected to earth requires (see conclusion page 16):
b identical protection-pole layout for each polarity
b an equal number of poles for each polarity, i.e. a total of two or four
b all poles of the two polarities must have breaking capacity u Isc max. at Un,
i.e. 60 kA/500 V in this case
b all poles of the each polarity must have breaking capacity u Isc max. at Un/2,
i.e. 60 kA/250 V in this case.
DB105021
DB105020
DB105019
b
b
b
b
Selection possibilities - see pages 17 and 18
The tables indicate for 250 V < Un y 500 V and for this system:
b poles connected in series: two-pole 2P in series V selection 1
b poles connected in parallel: four-pole 2 x 2P parallel connected in series
V selection 2.
Selection 2: Compact NS160 DC 4P
2 x 2P parallel mounted in series.
DB105022
Selection 1.
Selection 3: Compact NS250 DC 3P with 2P connected.
Circuit-breaker selection - see pages 30 and 110
b selection 1: the 250 A rated current does not exist in 2P. It is possible to use a
250 A 3P DC type circuit breaker with the central pole not connected V selection 3
b selection 2: the 160 A rated current (DC version) is suitable with a 2 x 2P
assembly connected in parallel because (see table page 110):
v the rated current of the 2 x 2P assembly connected in parallel is In = 288 A > 250 A
v and for L/R = 5 ms:
- breaking capacity of all poles = 100 kA/750 V > 60 kA/500 V
- breaking capacity of poles of each polarity = 100 kA/250 V > 60 kA/250 V.
The options are:
b selection 1: Compact S250DC, 3P, 2 poles connected
b selection 3: Compact NS160DC, 4P, 2 x 2P parallel connected in series.
Both solutions exist in fixed and withdrawable configurations.
Trip-unit selection
b Compact NS250DC 3P: the selection table on page 35 indicates 3 TM250DC trip
units, which are interchangeable
b Compact NS160DC, 4P (2 x 2P) 160 A: the selection table on page 110 indicates,
for the 2 x 2P parallel configuration mounted in series and for 250 A, a TM125DC trip
unit with the magnetic-protection threshold set to 2500 A.
Example 2
Selection 1: Compact NS160N 1P.
type of system - one polarity earthed
system voltage - Un = 250 V DC with time constant L/R = 5 ms
rated current required at point of installation In = 160 A
short-circuit current at the point of installation Isc = 45 kA.
Selection constraints - see page 16
The system with one polarity connected to earth requires (see conclusion page 16):
b protection poles on the protected polarity
b all poles contribute to breaking for the polarity:
v 1, 2 or 3P without disconnection of the two polarities
v 2, 3 or 4P with disconnection of the two polarities
b all poles of the protected polarity must have breaking capacity u Isc max. at Un,
i.e. 45 kA/250 V in this case.
DB105025
DB105024
DB105023
b
b
b
b
Selection 2.
Selection possibilities - see pages 17 and 18
The tables indicate for 250 V < Un y 250 V and for this system:
b poles connected in series: single-pole V selection 1 (or two-pole with
disconnection V selection 2)
b poles connected in parallel: two-pole V selection 3
b other selections (parallel connection) are possible, but are of no particular interest.
DB105026
Circuit-breaker selection - see page 30 and page 110
b selection 1: Compact NS160N, 1P, 50 kA, available in fixed version (or selection
2: Compact NS160N 2P, 85 kA, if disconnection of the two polarities is desired)
b selection 3: Compact NS100N, 2P in parallel, 50 kA, providing a rated current of
200 A (see table page 110), available in fixed version.
Selection 3: Compact NS100N 2P in parallel.
Trip-unit selection
b Compact NS160N, 1P: the selection table on page 35 indicates a built-in
TM160DC trip unit with the magnetic-protection threshold set to 1250 A
b Compact NS100N, 2P in parallel: the selection table on page 110 indicates, for the
2P parallel configuration and for 160 A, a TM80D trip unit with the magneticprotection threshold set to 1600 A.
19
Functions
and characteristics
Selection guide for DC circuit
breakers
Examples of circuit-breaker selection
0
Selection of a Masterpact NW
Example 1
DB105023
b
b
b
b
type of system - isolated polarities
system voltage - Un = 750 V DC with time constant L/R = 30 ms
rated current required at point of installation In = 2000 A
short-circuit current at the point of installation Isc = 40 kA
DB105027
Selection constraints - see page 16
The system with isolated polarities requires (see conclusion page 16):
b identical protection for each polarity
b an equal number of poles for each polarity, i.e. a total of two or four
b all poles of each polarity must have breaking capacity u Isc max. at Un,
i.e. 40 kA/750 V in this case.
Selection possibilities - see page 17
The table for series poles indicates for a voltage 24 V < Un y 750 V and the type of
system, use of a four-pole, version E circuit breaker.
Circuit-breaker selection - see page 32
The Masterpact NW characteristics table indicates more specifically with a 2000 A
a NW20 type H circuit breaker with a breaking capacity of 50 kA/750 V (L/R = 30 ms).
The correct selection is a Masterpact NW20 type H version E, 2000 A, 50 kA,
available in fixed and drawout versions.
Masterpact NW20H version E.
Example 2
DB105023
b
b
b
b
type of system - one polarity earthed
system voltage - Un = 500 V DC with time constant L/R = 15 ms
rated current required at point of installation In = 1000 A
short-circuit current at the point of installation Isc = 30 kA
DB105028
Selection constraints - see page 16
The system with one polarity connected to earth requires (see conclusion page 16):
b protection poles on the protected polarity
b all poles contribute to breaking for the polarity:
v 1, 2 or 3P without disconnection of the two polarities
v 2, 3 or 4P with disconnection of the two polarities
b all poles of the protected polarity must have breaking capacity
u Isc max. at Un, i.e. 30 kA/500 V in this case.
Selection possibilities - see page 17
The table for series poles indicates for a voltage 24 V < Un y 500 V and the type of
system, use of a three-pole, version C circuit breaker.
Masterpact NW10N version C.
20
Circuit-breaker selection - see page 32
The Masterpact NW characteristics table indicates more specifically with a 1000 A
a NW10 type N circuit breaker with a breaking capacity of 35 kA/500 V (L/R = 15 ms).
The correct selection is a Masterpact NW10 type N version C, 1000 A, 35 kA,
available in fixed and drawout versions.
Functions
and characteristics
Calculation of DC distributionsystem characteristics
Short-circuit currents
L/R time constant
0
DB105060
Short-circuit currents
Calculation of the short-circuit current across the terminals of
a battery
During a short-circuit, the battery discharges a current equal to
Vb
Icc = ------Ri
b Vb = maximum discharge voltage (battery 100 % charged)
b Ri = internal resistance equivalent to all cells (a function of the capacity in amperehours).
Example
b consider a set of four 500 Ah batteries connected in parallel
b discharge voltage of one battery: 240 V (110 cells 2.2 V each)
b discharge current of one battery: 300 A with a run-time of 30 minutes
b discharge current of all four batteries: 1200 A with a run-time of 30 minutes
b internal resistance 0.5 mΩ per cell, i.e. for one battery:
Ri = 110 x 0.5 x 10-3 = 55 x 10-3 Ω
b short-circuit current of one battery: Isc = 240 V / 55 x 10-3 Ω = 4.37 kA
b neglecting the resistance of the connections, for all four batteries discharging the
short-circuit current in parallel, the total short-circuit current is four times that of one
battery, i.e. Isc = 4 x 4.37 kA = 17.5 kA.
Note: if the internal resistance is not known, it is possible to use the following rough
approximation: Isc = kc where c is the capacity of the battery in ampere-hours and k is a
coefficient close to 10 and always less than 20.
Other typical examples
b PABXs: Isc from 5 to 25 kA at 240 V DC with L/R = 5 ms
b submarine: Isc from 40 to 60 kA at 400 V DC with L/R = 5 ms.
DB105056
DB105059
L/R time constant
When a short-circuit occurs across the terminals of a DC circuit, the current rises
from the load current (y In) to the short-circuit current Isc over a period of time that
depends on the value of the resistance R and inductance L of the short-circuited
loop.
The equation determining the current in the loop is:
u = Ri + L di/dt
The curve of I versus time is defined (neglecting In) by the equation:
i = Isc (1 - exp(t/τ))
where τ = L/R is the time constant for the rise to Isc.
Practically speaking, after a time t = 3τ, the short-circuit is considered to be
established, because the value of exp(-3) = 0.05 is negligible compared to 1 (see the
curve opposite).
The lower the time constant (e.g. battery circuit), the shorter the time required for the
current to rise to Isc.
To express breaking capacity, the interrupted short-circuit current with the following
time constants is used:
b L/R = 5 ms, fast short-circuit
b L/R = 15 ms, standardised value used in standard IEC 60947-2
b L/R = 30 ms, slow short-circuit.
In general, the value of the system time constant is calculated under worst-case
conditions, across the terminals of the generator.
Breaking-capacity values for:
b Compact NS (table page 30) are the same for 5 ms and 15 ms
b Masterpact NW (table page 32) are indicated for 3 values, 5 ms, 15 ms and 30 ms.
21
Functions
and characteristics
Panorama of electrical and
mechanical accessories
Compact NS100 to NS630
0
DB105029
The Compact range offers a wide number of
installation possibilities:
b fixed (front or rear connected)
b plug-in
b withdrawable.
With a minimum number of catalogue
numbers, the Compact NS DC system
offers a wide variety of solutions up to
630 A.
Plug-in
pact
com
NH .
p 8kV
NB250
. Uim
Icu
Ui 750V
(kA)
100
70
65
50
440
10
500/525
85
660/690
Ue
(V)
220/240
380/415
250
Icu
100%
Ics=
cat A
-2 CEI
947BS
IECVDE
UNE
NEMA
push
to
trip
Im 10
9
1
x
pact
com
-2 CEI
947BS
IECVDE
UNE
NEMA
push
to
trip
Im 10
9
1
.8
.9
x 250
22
5
6
Ir
Withdrawable
D
TM 250
/40˚C
250A
125/160
UTE
A
8
7
x 250
A
Ir
Im
5
6
Ir
NH .
p 8kV
NB250
. Uim
Icu
Ui 750V
(kA)
Ue
100
(V)
70
220/240
65
380/415
50
440
10
/525
500
85
660/690
250
Icu
100%
Ics=
cat A
D
TM 250
/40˚C
250A
125/160
UTE
.8
.9
250A
8
7
x 250
A
Ir
Im
Panorama of electrical and
mechanical accessories
Compact NS100 to NS630
0
DB105030
Functions
and characteristics
harg
disc
ed
O OFF
O
OFF
push
-2 CEI
947BS
IECVDE
UNE
NEMA
D
TM 250
/40˚C
250A
125/160
UTE
push
to
trip
Im 10
I
ON
push
5
6
Ir
9
1
.8
.9
x 250
8
x
7
250A
Ir
Im
A
23
Panorama of electrical and
mechanical accessories
Masterpact NW10 to NW40
All Masterpact NW DC devices
exist in circuit-breaker (equipped with
Micrologic DC 1.0 control unit) and switchdisconnector versions. All auxiliaries are
common from 1000 to 4000 A.
DB105108
Functions
and characteristics
OFF pushbutton.
ON pushbutton.
Closing mechanism charging handle.
Operation counter.
Operating mechanism charged and "ready to close"
indication:
b spring charged
b spring discharged.
6 Main contact position indication:
b ON
b OFF.
7
8
9
10
11
12
13
14
15
16
DB104523
DB104522
1
2
3
4
5
Fault trip indication and reset button.
Micrologic 1.0 DC control unit.
Racking interlock.
Racking-handle storage.
Shutter position indication and locking.
"Connected / test / disconnected"
position indication.
Racking-handle port.
Reset pushbutton.
Padlock locking.
Keylock locking.
Circuit breakers and switch-disconnectors
PB101136-40
Masterpact NW exists in fixed and withdrawable versions:
b circuit breaker equipped with Micrologic 1.0 DC control unit
b switch-disconnector without the control unit.
Common auxiliaries from 1000 to 4000 A
All accessories are:
b accessible from the front in a compartment isolated from the power circuits
b secured by a single screw
b no adjustments
b adaptable on site.
Vertical rear connection.
Communication
PB100791-32
Circuit-breaker or switch-disconnector integration in a supervision system requires
the COM option.
Masterpact is designed for integration in the SMS PowerLogic electrical-installation
management system and communicates using the Digipact and Modbus protocols.
An external gateway is available for communication with other networks (Profibus,
Ethernet, etc.).
Connections
DB101147
DB101150
DB101149
DB101156
Connection accessories.
24
b
b
b
v
v
v
v
v
v
v
v
v
rear connection (horizontal or vertical)
prefabricated series connections
optional accessories:
bare-cable connectors and connector shields
terminal shields
vertical-connection adapters
cable-lug adapters
interphase barriers
spreaders
disconnectable front-connection adapters
safety shutters, shutter locking blocks
shutter position indication and locking.
0
Panorama of electrical and
mechanical accessories
Masterpact NW10 to NW40
Functions
and characteristics
0
PB100780-32
PB100795-30
b pushbutton locking by padlockable transparent cover
b OFF-position locking by padlock or keylock
b chassis locking:
v in disconnected position by keylock
v in connected, disconnected and test positions
b door interlock (inhibits door opening with breaker in
connected position)
b racking interlock (inhibits racking with door open)
b racking interlock between crank and OFF pushbutton
b automatic spring discharge before breaker removal
b mismatch protection.
PB100796-29
Locking
Locking in disconnected position by keylock or padlock.
Door interlock (inhibits door
opening with breaker in
connected position).
PB100774-19
PB100781-19
BP100816-19
PB100820-19
PB100807-12
b standard or low-level contacts:
v ON/OFF indication (OF)
v "fault-trip" indication (SDE)
v carriage switches for connected (CE), disconnected
(CD) and test (CT) positions
b programmable contacts:
v two contacts (M2C)
v six contacts (M6C).
PB100806-19
Indication contacts
OF contact
(microswitch).
OF contact
(rotary).
SDE contact.
Combined contact Programmable
(connected/closed). contacts (M2C
and M6C).
Remote ON/OFF.
Gear motor.
PB100818-11
PB100809-11
PB100808-22
b remote ON/OFF:
v gear motor
v XF closing or MX opening voltage releases
v PF ready-to-close contact
v options:
- RAR automatic or Res electrical remote reset
- BPFE electrical closing pushbutton
b remote tripping function:
v MN voltage release:
- standard
- adjustable or non-adjustable delay
v or 2nd MX voltage release.
PB100765-48
Remote operation
Voltage
releases
(MX and XF).
PF readyto-close
contact.
PB100776-29
auxiliary terminal shield
operation counter
escutcheon
transparent cover for escutcheon
escutcheon blanking plate.
DB104524
b
b
b
b
b
PB100822-22
Accessories
Operation counter.
Escutcheon with blanking plate.
Transparent cover.
25
Functions
and characteristics
General characteristics
DB104461
Compliance with standards
DB104462
Compact NS250.
Compact NS and Masterpact NW DC circuit breakers and auxiliaries comply with the
following:
b international recommendations:
v IEC 60947-1 - general rules
v IEC 60947-2 - circuit breakers
v IEC 60947-3 - switches, disconnectors, switch-disconnectors, etc.
v IEC 60947-4 - contactors and motor starters
v IEC 60947-5.1 and following - control-circuit devices and switching elements;
automatic control components
b European (EN 60947-1 and EN 60947-2) and the corresponding national
standards:
v France NF
v Germany VDE
v UK BS
v Australia AS
v Italy CEI
b the specifications of marine classification companies (Veritas, Lloyd's Register of
Shipping, Det Norske Veritas, etc.)
b French standard NF C 79-130 and the recommendations issued by the CNOMO
organisation for the protection of machine tools.
For United States UL, Canadian CSA, Mexican NOM and Japanese JIS standards,
please consult us.
Pollution degree
Compact NS and Masterpact NW DC circuit breakers are certified for operation
under pollution conditions in industrial environments, as per
standard IEC 60947, corresponding to:
b pollution degree 3 (Compact NS)
b pollution degree 4 (Masterpact NW).
Tropicalisation
Masterpact NW20 HDC-D.
Compact NS and Masterpact NW DC circuit breakers have successfully passed the
tests prescribed by the following standards for extreme atmospheric conditions:
b IEC 60068-2-1 - dry cold (-55 °C)
b IEC 60068-2-1 - dry heat (+85 °C)
b IEC 60068-2-30 - damp heat (95 % relative humidity at +55 °C)
b IEC 68-2-52 (level 2) - salt mist.
Environmental protection
Compact NS and Masterpact NW DC circuit breakers take into account important
concerns for environmental protection. Most components are recyclable. Insulating
parts making up the Compact NS and Masterpact NW are marked as specified in
applicable environmental standards.
26
0
Functions
and characteristics
General characteristics
0
Ambient temperature
Operating-temperature range
b Compact NS and Masterpact NW circuit breakers may be used between -25 °C
and +70 °C
b circuit breakers should be put into service under the normal, ambient operating
temperatures indicated above. Exceptionally, they may be put into service when the
ambient temperature is between -35 °C and -25 °C.
Derating
Above 40 °C (50 °C for Masterpact with vertical connections), it is necessary to take
into account the derating values indicated on pages 108 (Compact NS) and 119
(Masterpact NW).
Storage-temperature range
b Compact NS circuit breakers may be stored in their original packing between 50 °C and +85 °C
b Masterpact NW circuit breakers may be stored without the control unit between 35 °C and +85 °C. The control unit must be stored at a temperature between -25 °C
and +85 °C.
Altitude
Compact NS and Masterpact NW circuit breakers are designed to operate at their
rated values at altitudes under 2000 metres.
Above 2000 metres, the changes in the characteristics of the ambient air (electrical
resistance, cooling capacity) result in a reduction of the characteristics below.
Altitude (m)
2000
3000
4000
5000
Dielectric resistance voltage (V)
Compact NS
Rated insulation voltage (V)
Maximum utilisation voltage (V)
Rated current (A) at 40 °C
Masterpact NW
Rated insulation voltage (V)
Maximum utilisation voltage (V)
Rated current (A) at 40 °C
3500
3150
2500
2100
750
690
1 x In
700
550
0.96 In
600
480
0.93 In
500
420
0.9 In
1000
900
1 x In
900
770
0.99 In
700
680
0.96 In
600
420
0.94 In
Compact NS and Masterpact NW circuit breakers are suitable for
isolation as defined by IEC 60947-1 and 60947-2:
b the isolation position corresponds to the O (OFF) position
b the operating handle and the indicators cannot indicate the OFF position unless
the contacts are effectively open
b padlocks may not be installed unless the contacts are open.
The isolation function is certified by tests guaranteeing:
b the mechanical reliability of the position-indication system
b the absence of leakage currents
b overvoltage withstand capacity between upstream and downstream connections.
For Compact NS, installation of a rotary handle or a motor mechanism does not alter
the reliability of the position-indication system.
DB104527
PB100881-55
Positive contact indication
27
Functions
and characteristics
General characteristics
0
Vibrations
Compact NS and Masterpact NW circuit breakers are guaranteed against
electromagnetic or mechanical vibrations.
Tests are carried out in compliance with standard IEC 68-2-6 for the levels required
by merchant-marine inspection organisations (Veritas, Lloyd's, etc.):
b 2 to 13.2 Hz: amplitude ±1 mm
b 13.2 to 100 Hz: constant acceleration 0.7 g.
Excessive vibration may cause tripping, breaks in connections or damage to
mechanical parts.
Installation in class II switchboards
All Compact NS and Masterpact NW circuit breakers are class II front-face devices.
They may be installed through the door of class II switchboards (as per standard IEC
60664) without downgrading switchboard insulation. Installation requires no special
operations even when the circuit breaker is equipped with a rotary handle or a motor
mechanism.
Electromagnetic compatibility
Compact NS and Masterpact NW circuit breakers are protected against:
b overvoltages caused by devices that generate electromagnetic disturbances
b overvoltages caused by atmospheric disturbances or by a distribution-system
outage (e.g. failure of a lighting system) and devices emitting radio waves (radios,
walkie-talkies, radar, etc.)
b electrostatic discharges produced by users. The circuit breakers have successfully
passed the electromagnetic-compatibility tests (EMC) defined by international
standard IEC 60947-2, appendix F.
The above tests guarantee that:
v no nuisance tripping occurs
v tripping times are respected.
Compact NS and Masterpact NW circuit breakers comply with the following
electromagnetic-compatibility standards:
b IEC/EN 61000-4-2 - electrostatic immunity discharge test, part 2 (circuit breakers)
b IEC/EN 61000-4-3 - electromagnetic-field immunity test
b IEC/EN 61000-4-4 - electrical fast transient/burst immunity test
b IEC/EN 61000-4-5 - surge immunity test
b IEC/EN 61000-4-6 - immunity to conducted disturbances, induced by
radiofrequency fields
b CISPR 11 - radio-frequency conducted and radiated emission tests required for
CE marking
v EN 61000-6-2 - immunity standard for industrial environments
v EN 50081-1-2 - emissions in commercial and industrial environments.
28
General characteristics
Functions
and characteristics
0
Degree of protection
Compact NS and Masterpact NW circuit breakers offer the following protection
characteristics depending on the installation conditions:
b IP: degree of protection (standard IEC 60529)
b IK: protection against external mechanical impacts (standard EN 50102).
Compact NS
Bare circuit breaker with terminal shields
IP40
IK07
With direct rotary handle,
standard or VDE
IP40
IK07
With toggle
IP40
IK07
With direct rotary handle,
standard or VDE
CCM
CNOMO
IP40
IK07
IP43
IP54
IK07
IK07
With extended rotary handle
IP55
IK08
With motor mechanism
IP40
IK07
Bare circuit breaker
Escutcheon (CDP) for fixed and drawout
versions, with blanking plate
IP30
IP40
IK07
Transparent cover (CCP) for escutcheon
for fixed and drawout versions
IP54
IK10
DB104529
DB104528
With toggle
DB104533
DB104532
DB104531
DB104530
Circuit breaker installed in a switchboard
Masterpact NW
PB100776-20
DB104534
Circuit breaker installed in a switchboard
29
Functions
and characteristics
Circuit-breaker characteristics
Compact NS100 to NS630
PB101047-14
Compact circuit breaker
Number of poles
PB101048-20
Electrical characteristics as per IEC 60947-1/ 60947-2 and EN 60947-1 / 60947-2
Rated current at 40 °C
Rated insulation voltage
Rated impulse withstand voltage
Rated operational voltage
Type of circuit breaker
Ultimate breaking capacity
(L/R = 5 ms and L/R = 15 ms)
In
Ui
Uimp
Ue
(A)
(V)
(kV peak)
(V DC)
Icu
(kA rms)
Service breaking capacity
Rated making capacity
Utilisation category
Breaking time
Suitability for isolation
Pollution degree (as per IEC 60664-1)
Protection against overcurrents (see trip-unit table page 34)
Trip units
Ics
Icm
% Icu
% Icu
(ms)
Built-in
Interchangeable
Overloads
Short-circuits
Protection
PB101055-27
Durability
(O/F cycles)
V DC 48-125 V (1P) (1)
250 V (1P) (1)
500 V (2P) (1)
750 V (3P) (1)
Mechanical
Electrical
250 V In
250 V In/2
500 V In
500 V In/2
750 V In
750 V In/2
Indication and control auxiliaries
Auxiliary contacts
Voltage release
MX shunt release
MN undervoltage release
Installation and connections
Fixed
Front connection
Rear connection
Front connection
Rear connection
Front connection
Rear connection
PB100905-36
Plug-in (base)
Withdrawable (chassis)
Dimensions and weight
Dimensions
H x W x D (mm) connected in series
Fixed
Weight (kg)
connected in series
Fixed
(1) Number of poles taking part in current interruption.
Example. The NS100N circuit breaker exists in the following versions:
- 1 pole with an Icu of 50 kA, for systems y 250 V
- 2 poles with an Icu of 85 kA, for systems y 500 V; 1 pole can be used in a 250 V system.
30
1P
2P
3P
4P
1P
2P
3P
4P
0
Circuit-breaker characteristics
Compact NS100 to NS630
Functions
and characteristics
NS100
NS160
1
100
800
8
250
N
50
50
100 %
100 %
A
< 10 ms
b
III
b
b
b
2
NS250 NS400 NS630
3/4
1
H
85
85
-
500
N
85
85
85
-
b
b
b
b
b
b
H
85
85
-
500
N
85
85
85
-
H
100
100
100
-
750
DC
100
100
100
100
160
800
8
250
N
50
50
-
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
0
2
3/4
3/4
3/4
3/4
H
100
100
100
-
750
DC
100
100
100
100
250
800
8
750
DC
100
100
100
100
400
800
8
750
DC
100
100
100
100
550
800
8
750
DC
100
100
100
100
b
b
b
b
b
b
b
b
b
b
b
b
10000
5000
10000
5000
10000
5000
10000
5000
1000
2000
1000
2000
1000
2000
b
b
b
b
b
-
-
161 x 35 x 86
0.7
-
-
-
161 x 70 x 86
1.2
-
b
b
b
b
-
161 x 105 x 86
161 x 140 x 86
1.6 to 1.9
2.1 to 2.3
161 x 35 x 86
0.7
-
-
-
-
161 x 70 x 86
1.2
-
b
b
b
b
b
b
b
b
161 x 105 x 86
161 x 140 x 86
1.6 to 1.9
2.1 to 2.3
b
b
b
b
b
b
b
b
255 x 140 x 110
225 x 185 x 110
6.0
7.8
31
Functions
and characteristics
Circuit-breaker characteristics
Masterpact NW10 to NW40
E88193-31
Masterpact circuit breaker
Number of poles
Version C or D
Version E
Electrical characteristics as per IEC 60947-1/ 60947-2 and EN 60947-1 / 60947-2
PB101129-34
Rated current at 40 °C / 50 °C (1)
Rated insulation voltage
Rated impulse withstand voltage
Rated operational voltage
Type of circuit breaker
Ultimate breaking capacity
NW10DC 4P.
In
Ui
Uimp
Ue
(A)
(V)
(kV peak)
(V DC)
L/R = 5 ms
Icu
(kA)
L/R = 15 ms
Icu
L/R = 30 ms
Icu
Service breaking capacity
Rated making capacity
Short-time withstand current
Utilisation category
Breaking time
Making time
Suitability for isolation
Pollution degree (as per IEC 60664-1)
Protection against overcurrents (see trip-unit table page 36)
Trip units
Protection
Durability
(O/F cycles)
Mechanical
Electrical
Indication and control auxiliaries
Auxiliary contacts
Voltage release
Ics
Icm
Icw
V DC 500
750
900
500
750
900
500
750
900
% Icu
% Icu
1s
(ms)
(ms)
Built-in
Overloads
Short-circuits
With maintenance
Without maintenance
Without maintenance
500 V CC
900 V CC
MX shunt release
MN undervoltage release
Characteristics of switch-disconnectors as per IEC 60947-3 and EN 60947-3
Type of switch-disconnector
Rated making capacity
Rated short-time withstand current
Icm
Icw
(kA)
(kA)
3P
4P
3P
4P
RC
1s
Installation and connections
Connection
Drawout
Fixed
Dimensions and weight
Dimensions
H x W x D (mm) connected in series
Drawout
Fixed
Weight (kg)
connected in series (approximate values)
Drawout
Fixed
(1) 50 °C - see the derating table for the NW40.
32
3P
4P
3P
4P
3P
4P
3P
4P
RC
Horizontal
Vertical
Horizontal
Vertical
0
Circuit-breaker characteristics
Masterpact NW10 to NW40
Functions
and characteristics
NW10
NW20
NW40
3
4
3
4
3
4
1000
1000
12
500/900
N
85
35
25
100 %
100 %
50
B
30 to 75
< 70
b
4
H
100
85
85
85
50
35
50
50
25
2000
1000
12
500/900
N
85
35
25
-
H
100
85
85
85
50
35
50
50
25
4000
1000
12
500/900
N
85
35
25
-
H
100
85
85
85
50
35
50
50
25
85
50
85
50
85
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
20000
10000
8500
-
2000
5000
-
2000
2000
-
1000
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
-
HA
85
85
-
HA
85
85
-
HA
85
85
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
439 x 441 x 494
439 x 556 x 494
352 x 422 x 427
352 x 537 x 427
90 to 116
125 to 146
60 to 86
85 to 106
0
439 x 441 x 594
439 x 556 x 594
352 x 422 x 527
352 x 537 x 527
33
Trip-unit characteristics
Types of trip units
Trip units for Compact NS
Depending on the version, Compact NS DC
circuit breakers are equipped with:
b 1P/2P:
TM-D built-in thermal-magnetic trip units
b 3P/4P:
v up to 250 A, TM-D, TM-DC or TM-G
interchangeable thermal-magnetic trip units
v for 400 and 630 A,
MP1, MP2, MP3 built-in magnetic trip units.
Types of trip units
DB105052
Functions
and characteristics
Masterpact NW DC circuit breakers, 3 or 4pole, use built-in Micrologic 1.0 DC control
units with instantaneous pick-ups.
see page 34
see page 110 (parallel connection of
poles)
see page 36
Trip units for Compact NS
DB104537
DB104536
TM thermal-magnetic trip unit up to 250 A
Up to 250 A for Compact NS, protection is provided by thermal-magnetic trip units.
1 overload protection threshold.
2 short-circuit protection pick-up.
For 1 or 2 poles, trip units are built in
b TM-D up to 160 A: fixed thermal threshold and magnetic pick-up
For 3 or 4 poles, trip units are interchangeable
b TM-D up to 63 A: adjustable thermal threshold and fixed magnetic pick-up
b TM-DC from 80 to 250 A: fixed or adjustable (for 200 and 250 A) magnetic pick-up
and adjustable thermal threshold
b TM-G, up to 63 A: adjustable thermal threshold and fixed low magnetic pick-up to
protect long cables.
34
0
Trip-unit characteristics
Trip units for Compact NS
Functions
and characteristics
0
Trip units for Compact NS100 - NS160 - NS250
Single-pole and two-pole (built-in trip units)
Type of trip unit
Rating
Compact circuit breaker
NS100N/H
NS160N/H
Overload protection (thermal)
Tripping threshold
In (A) at 40 °C
Ir (A) at 40 °C
Protection against short-circuits (magnetic)
Pick-up
Im (A)
Compact circuit breaker
NS100/160N/H
Marked AC value (1)
True DC value
TM-D
16
20
b
b
-
25
b
-
32
b
-
40
b
-
50
b
-
63
b
-
80
b
-
100
b
-
125
b
160
b
Fixed
16
20
25
32
40
50
63
80
100
125
160
Fixed
190
190
260
260
300
400
300
400
500
700
500
700
500
700
640
800
800
1000
1000
1200
1250
1250
250
b
TM-G
16 25
b b
b b
- -
Three-pole 3P-3d and four-pole 4P-4d (interchangeable trip units)
Type of trip unit
Rating (A)
Compact circuit breaker
NS100DC
NS160DC
NS250DC
Overload protection (thermal)
Tripping threshold (A)
TM-D
16 25
b
b
b
b
-
In (A) at 40 °C
Ir (at 40 °C)
32
b
b
-
40
b
b
-
50
b
b
-
63
b
b
-
TM-DC
80 100
b
b
b
b
b
b
125
b
b
160
b
b
200
b
40
b
b
-
63
b
b
-
Adjustable
0.8 to 1 x In
Protection against short-circuits (magnetic)
Pick-up (A)
Im
Fixed
Adjustable Fixed
Compact circuit breaker
NS100/160/250DC Marked AC value (1)
190 300 400 500 500 500 63 80 80 125
True DC value
260 400 550 700 700 700 800 800 1250 1250 5 to 10 x In 80 100 100 150
(1) The pick-up values for single-pole and two-pole, TMD and TMG magnetic trip units up to 63 A are marked with AC values. A correction coefficient is required to
obtain the DC pick-up values indicated on the next line.
The magnetic-protection pick-up values for TM-DC trip units are indicated directly in DC values.
DB104538
MP magnetic trip unit for 400 and 630 A
Above 250 A, the protection of Compact NS 400 A and 630 A circuit breakers is
ensured
by built-in magnetic trip units supplied mounted on the circuit breaker and offering
one of three protection levels MP1, MP2 and MP3.
Compact NS400 - NS630 trip units
Three-pole 3P-3D and four-pole 4P-3d (built-in trip units)
Type of trip unit
Circuit breaker
Compact NS400DC
Compact NS630DC
Protection against short-circuits (magnetic)
Pick-up (A)
Im
MP1
b
b
MP2
b
b
MP3
b
Adjustable
800…1600
1250…2500
2000…4000
35
Functions
and characteristics
Trip-unit characteristics
Trip units for Masterpact NW
All Masterpact NW DC devices
are equipped with a Micrologic 1.0 DC
control unit.
Protection using the Micrologic 1.0 DC control unit
PB101139-32
Masterpact NW DC circuit breakers use Micrologic 1.0 DC control units. These
interchangeable units with instantaneous thresholds, operating with electromagnetic
sensors, can be adjusted on site.
The circuit breakers can be used with the three versions of sensors,
defined by their setting range.
Type of sensor
Masterpact NW10
Masterpact NW20
Masterpact NW40
1250/2500 A
2500/5400 A
5000/11000 A
b
-
b
b
-
b
b
b
Adjustments
DB104540
DB104541
Settings for Masterpact NW circuit breakers may be accessed from the front, with the
switchboard door open.
b Settings are made for the input (+ pole) and the output (- pole).
b The setting range comprises eleven positions, plus five preferential settings
marked A, B, C, D and E.
b The setting values for the two corresponding sensors must be identical.
Magnetic pick-up value.
Two identical settings.
36
0
Trip-unit characteristics
Trip units for Masterpact NW
Functions
and characteristics
0
Setting values for magnetic pick-up Im
Settings marked A, B, C, D and E
DB104542
Minimum
Maximum
1250/2500
2500/5400
5000/11000
Settings
A1 and A2
1250 A
2500 A
5000 A
Settings
B1 and B2
1500 A
3300 A
8000 A
Settings
C1 and C2
1600 A
4000 A
10000 A
Settings
D1 and D2
2000 A
5000 A
11000 A
Settings
E1 and E2
2500 A
5400 A
11000 A
Tolerances
±8 %
±10 %
±10 %
±10 %
±10 %
DB104543
Sensor versions
Intermediate settings
DB104544
It is possible to set eleven other (unmarked) intermediate values.
37
Communication
COM option in Masterpact NW
The COM option is required for integration
of the circuit breaker or switch-disconnector
in a supervision system.
Masterpact uses the Digipact or Modbus
communications protocol for full
compatibility with the SMS PowerLogic
power-monitoring system. An external
gateway is available for communication on
other networks:
b Profibus
b Ethernet…
The COM option in Masterpact is made up of:
For fixed devices
b a "device" communication module, installed behind the Micrologic control unit and
supplied with its set of sensors (OF, SDE ,PF and CH micro-contacts) and its kit for
connection to XF and MX communicating voltage releases.
For drawout devices
b a "device" communication module, installed behind the Micrologic control unit and
supplied with its set of sensors (OF, SDE, PF and CH micro-contacts) and its kit for
connection to XF and MX communicating voltage releases
b a "chassis" communication module supplied separately with its set of sensors (CE,
CD and CT contacts).
Status indication by the COM option is independent of the device indication contacts.
These contacts remain available for conventional uses.
Digipact or Modbus "device" communication module
This module is independent of the control unit. It receives and transmits information
on the communication network.
Digipact or Modbus "chassis" communication module
This module is independent of the control unit. The Modbus "chassis" communication
module makes it possible to address the chassis and to conserve the address when
the circuit breaker is in the disconnected position. Consumption: 30 mA, 24 V.
PB100777-26
PB100782-26
Functions
and characteristics
Digipact "chassis"
communication module.
Modbus "device"
communication module.
Modbus "chassis"
communication module.
1
2
3
4
5
DB104595
PB100802-27
PB100782-26
Digipact "device"
communication module.
DB105053
XF and MX communicating voltage releases
The XF and MX communicating voltage releases are equipped for connection to the
"device" communication module.
Remote-tripping functions (second MX or MN) are independent of the
communication option. These releases are therefore not equipped for connection to
the "device" communication module.
"Device" communication module.
"Chassis" communication module.
OF, SDE, PF and CH "device" sensors.
CE, CD and CT "chassis" sensors.
DMX and XF release.
: hard wiring.
: communication bus.
Communication functions
The Digipact or Modbus COM option may
be used to:
b identify the device
b indicate status conditions
b control the device ON/OFF.
38
Switch-disconnector
and circuit breaker
with communication bus
Digipact
Modbus
Device identification
Address
Rating
Type of device
Type of control unit
Status indications
ON/OFF (OF)
Spring charged (CH)
Ready to close (PF)
Fault-trip (SDE)
Connected/disconnected/test position (CE/CD/CT)
Controls
ON/OFF (MX/XF)
Spring charging
Reset of the mechanical indicator
b
-
b
-
b
b
b
b
b
b
b
b
b
b
b
-
b
-
0
Communication
Compact NS
Communication with the circuit breaker
Compact NS is possible using a number of
hardware solutions:
b Advantys OTB Modbus interface module
with built-in inputs/outputs
b SC150 interface
b communicating auxiliary contacts.
A number of hardware solutions are available for the range:
b Advantys OTB Modbus interface module with 12 inputs/8 outputs built in and
expandable by adding optional modules from the Twido range
b communicating auxiliaries
They replace the standard auxiliaries and connect directly to the Digipact bus, with
three equipment levels:
v communicating auxiliary contacts, comprising:
- OF (on/off), SD (trip indication) and SDE (fault-trip indication) contacts
- electronic module
- prefabricated wiring.
v communicating auxiliary contacts and motor-mechanism module, comprising:
- OF (on/off), SD (trip indication) and SDE (fault-trip indication) contacts
- MCH motor-mechanism module (220 V AC) (1)
- electronic module
- prefabricated wiring.
v communicating carriage switches for the chassis, comprising:
- CE / CD (connected/disconnected position) contacts
- electronic module
- wiring connector
b SC150 interface
Using the SC150 interface, it is possible to integrate a device equipped with noncommunicating auxiliaries into a supervison system.
The SC150 interface is used to connect:
v the auxiliary contacts on the circuit breaker (OF, SD, SDE, SDV, CD, CE)
v the remote-operation system (on, off, reset)
v one unassigned digital input.
PB101038-25
Functions
and characteristics
PB100884-22
PB100883-25
Advantys OTB Modbus.
0
Software
To make use of the information provided by the communicating devices, it is
necessary to use software incorporating a Modbus driver. Schneider Electric offers
two solutions: the RCU utility and SMS software.
RCU utility
Withdrawable Compact NS
on its chassis equipped with
communicating auxiliary
contacts.
This is a set of Modbus drivers that, in conjunction with a PC, can be used to:
b view device status (on/off and fault trip)
b view variables: currents, voltages, power, energy (instantaneous and maximum
values)
b remotely open and close the device.
PB100885-10
Compact NS equipped with
communicating auxiliary
contacts and motormechanism module.
SMS (System Management Software)
SMS is power-management software to control and monitor LV and MV electrical
installations.
The SMS family includes a number of products offering different features for all types
of applications.
SMS can communicate with all intelligent devices in the electrical installation.
SC150 indication and control
interface.
Communication functions
DB105054
Compact equipped with:
Advantys
communicating SC150
OTB Modbus auxiliaries
Device identification
Address
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
-
b
b
b
b
-
b
b
Indication of status conditions
OF (on/off)
SD (trip indication)
SDE (fault-trip indication)
CE/CD
(connected/disconnected position)
Controls
ON/OFF MX/XF
LED reset
Operating and maintenance aids
Reading of the protection settings Operation counter
UNE
NEMA
D
TM 250
250A/40˚C
125/160
UTE
push
to
trip
Im 10
discharged
O OFF
5
-2
BS CEI
IEC947
VDE
6
Ir
.8
.9
x 250A
UNE
NEMA
8
7
x 250A
Ir
Im
O
push
OFF
I
push
ON
BS CEI
IEC947-2
VDE
UNE
NEMA
push
to
trip
D
TM 250
250A/40˚C
125/160
UTE
push
to
trip
Im 10
9
5
6
9
1
.8
.9
x 250A
8
7
x 250A
Ir
1
Im
O
push
OFF
I
push
.8
.9
x 250A
ON
5
6
Ir
Im 10
Ir
D
TM 250 C
250A/40˚
0
125/16
UTE
9
1
8
7
x 250A
Ir
Im
DB104593
discharged
O OFF
BS CEI
IEC947-2
VDE
: hard wiring.
: communication bus.
: Modbus bus.
39
Functions and
characteristics
Electrical and mechanical
accessories
Compact NS100 to 630
The plug-in configuration makes it possible
to:
b extract and/or rapidly replace the circuit
breaker without having to touch connections
b allow for the addition of future circuits
at a later date.
Installation
Fixed circuit breakers
DB104554
DB104553
PB100886-32
DB104552
Compact circuit breakers may be mounted vertically, horizontally or flat on their back
without any derating of characteristics. They are designed for easy installation in the
various types of switchboards of each market and country.
Mounting on DIN rail
(with adapter).
DB104550
Fixed Compact NS250H.
Mounting on rails.
DB104555
Mounting on a backplate
(solid or slotted).
Installation positions.
Mounting on a Prisma functional mounting plate.
DB104558
DB104557
DB104556
PB100887-32
Circuit breaker on a plug-in base
Compact NS250H on a plug-in base.
Mounting on a backplate.
Mounting through a front
panel.
Mounting on rails.
DB104551
Protection against direct contacts with power circuits
b circuit breaker plugged in = IP4
b circuit breaker removed = IP2
b circuit breaker removed, base equipped with shutters = IP4
Installation positions.
Parts of a plug-in configuration
b Compact circuit breaker
b set of power connectors added to the circuit breaker
b plug-in base for mounting on a backplate or on rails
b insulating screen, for use when the circuit breaker is installed on a backplate with
front connections
b safety trip, installed on the circuit breaker, that causes automatic tripping if the
circuit breaker is ON, before engaging or withdrawing it. The safety trip does not
prevent circuit breaker operation, even when it has been removed
b mandatory short terminal shields.
Accessories
Insulating accessories can be used to:
b protect against direct contact
b increase insulation between phases.
40
0
b disconnected position - the power circuits
are disconnected, but the circuit breaker is
still on the chassis and may still be operated
(ON, OFF, push-to-trip)
b the circuit breaker may be locked using
1 to 3 padlocks (shackle diameter 5 to
8 mm), to prevent connection
b the auxiliaries can be tested (with manual
auxiliary connector).
Circuit breaker on a withdrawable chassis
0
DB104559
Electrical and mechanical
accessories
Compact NS100 to 630
PB100888-34
Functions and
characteristics
Connected.
Disconnected.
Removed.
The chassis is made up of two side plates installed on the base and two other plates
mounted on the circuit breaker.
Accessories
b auxiliary contacts for installation on the fixed part, indicating the "connected" and
"disconnected" positions
b toggle collar for circuit breakers with a toggle mounted through a front panel,
intended to maintain the degree of protection whatever the position of the circuit
breaker (supplied with a toggle extension)
b keylock which, depending on the bolt fitted, can be used to:
v prevent insertion for connection
v lock the circuit breaker in the connected or disconnected positions
b telescopic shaft for extended rotary handles.
DB104551
Compact NS250H on a withdrawable chassis.
Installation positions.
DB104563
DB104562
Lugs
Lugs are different for copper and aluminium cables.
They are supplied with interphase barriers and are
compatible with the long terminal shields.
b the small lugs for copper cables may be used for
cables with the following cross-sectional areas:
v 120, 150 or 185 mm2 (NS100 to 250)
v 240 or 300 mm2 (NS400 to 630).
Crimping by hexagonal barrels or punching.
b the small lugs for aluminium cables may be used for
cables with the following cross-sectional areas:
v 150 or 185 mm2 (NS100 to 250)
v 240 or 300 mm2 (NS400 to 630).
Crimping by hexagonal barrels.
DB104564
DB104565
Right-angle terminal
extensions.
Straight terminal extensions
for NS100 to 250.
DB104566
The Compact NS100 to NS630 devices are equipped
as standard with terminals comprising snap-in nuts with
screws (M8 for NS100 to 250, M10 for NS400 to 630)
for direct connection to insulated bars or cables with
lugs.
Additional terminal extensions (right-angle, edgewise,
spreaders) are available for all connection
requirements.
Edgewise terminal
extensions for NS400 to 630.
DB104567
Front connection of bars or cables
with lugs
Small lug for copper cables.
DB104568
DB104561
DB104560
Connection of fixed devices
Small lug for aluminium
cables.
41
Functions and
characteristics
Electrical and mechanical
accessories
Compact NS100 to 630
0
Insulation of live parts
Terminal-shield selection
b fixed circuit breaker, front connection - long terminal
shields
b fixed circuit breaker, rear connection - short terminal
shields
b for voltages u 500 V, terminal shields are mandatory
b for voltages > 600 V, special connection kit with
terminal shields and insulating screens
b for withdrawable circuit breaker (plug-in and chassis
type), short terminal shields on the device are
mandatory. Terminal shields on the base are possible.
Compact NS equipped with terminal shields.
Terminal shields.
DB104570
DB104578
Terminal shields are sealable insulating accessories
used for protection against direct contact with power
circuits (degree of protection IP40, IK07). They are
supplied with sealing accessories.
DB104569
Terminal shields
Long terminal shields for plug-in bases are used to:
b protect against direct contact with power circuits
(degree of protection IP40, IK07)
b increase insulation between phases.
Insulating accessories for plug-in bases include:
b an adapter offering the same connection possibilities
as the circuit breaker
b long terminal shields for the plug-in base.
Interphase barriers.
Interphase barriers
Safety accessories for maximum insulation at the
power-connection points:
b they clip easily onto the circuit breaker
b not compatible with terminal shields
b special version for plug-in bases.
Accessories for series and parallel connection
DB104727
A limited number of accessories can be used to
optimise series and parallel connection of poles.
These include series connection plates, equipped with
heat sinks.
DB104726
Accessories for series connection
Accessories for parallel connection
DB104728
DB104730
DB104729
Series connection plates
equipped with heat sinks.
Parallel pole connection accessories are identical to
those for series connections. The are equipped with
heat sinks. Customer connections are made directly to
the connection plates after removing the heat sinks.
Parallel connection plates.
42
Electrical and mechanical
accessories
Compact NS100 to 630
Functions and
characteristics
0
Connection of electrical auxiliaries
Fixed configuration
DB104573
DB104973
Auxiliary circuits exit the device through a knock-out in the front cover.
Compact NS100/160/250.
DB104574
DB104974
Plug-in and withdrawable configurations
Compact NS400/630.
Automatic auxiliary connectors
Auxiliary circuits exit the circuit breaker via one to three automatic auxiliary
connectors (nine wires each). These are made up of:
b a moving part, connected to the circuit breaker via a support (one support per
circuit breaker)
b a fixed part, mounted on the plug-in base, equipped with connectors for bare
cables up to 2.5 mm2.
DB104976
DB104975
Selection of automatic auxiliary connectors
For Compact NS400 to 630, connection wires for the options installed with trip unit
STR53UE also exit via the automatic auxiliary connectors.
Compact NS100 to NS250.
Compact NS400 to NS630.
DB104577
Manual auxiliary connector for withdrawable configurations
Withdrawable circuit breakers may be equipped with one to three plugs with nine
wires each. In "disconnected" position, the auxiliaries remain connected and can
therefore be tested by operating the circuit breaker.
Each auxiliary is equipped with a terminal block with numbered
terminals for connection of wires up to:
b 1.5 mm2 for auxiliary contacts and voltage releases
b 2.5 mm2 for the motor-mechanism module.
Nine-wire manual auxiliary connector.
43
Functions and
characteristics
Electrical and mechanical
accessories
Compact NS100 to 630
0
Indication contacts
PB101033-18
Common-point changeover contacts are used to remote circuit-breaker status
information and can thus be used for indications, electrical locking, relaying, etc.
They comply with the IEC 60947-5 international recommendation.
Functions
Changeover contacts.
All the auxiliary contacts opposite are also available in
"low-level" versions capable of switching very low
loads (e.g. for the control of PLCs or electronic
circuits).
b OF (ON/OFF) - indicates the position of the circuit breaker contacts
b SD (trip indication) - indicates that the circuit breaker has tripped due to:
v an overload
v a short-circuit
v an earth-leakage fault
v operation of a voltage release
v operation of the "push to trip" button
v disconnection when the device is ON.
Returns to de-energised state when the circuit breaker is reset
b SDE (fault indication) - indicates that the circuit breaker has tripped due to:
v an overload
v a short-circuit.
Returns to de-energised state when the circuit breaker is reset
b CAM (early-make or early-break function) - indicates the position of the rotary
handle. Used in particular for advanced opening of safety trip devices (early break)
or to energise a control device prior to circuit-breaker closing (early make)
b CE / CD (connected/disconnected position) - microswitch type carriage switches
for withdrawable circuit breakers.
Installation
b OF, SD and SDE functions - a single type of contact provides all these different
indication functions, depending on where it is inserted in the device. The contacts clip
into slots behind the front cover of the circuit breaker.
The SDE function on a circuit breaker equipped with a thermal-magnetic trip unit
requires the SDE actuator.
b CAM function - the contact fits into the rotary-handle unit (direct or extended).
b CE / CD (connected/disconnected) function - two parts must be fitted on the fixed
and moving parts of the chassis.
Caractéristiques électriques des contacts auxiliaires
Contacts
Rated thermal current (A)
Minimum load
Utilisation cat. (IEC 60947-5-1)
Operational current (A) 24 V
48 V
110 V
220/240 V
250 V
380/440 V
480 v
660/690 V
44
Standard
6
100 mA at 24 V
AC12 AC15 DC12
6
6
6
6
6
2.5
6
5
0.6
6
4
0.3
6
2
6
1.5
6
0.1
-
Low level
5
1 mA at 4 V
DC14 AC12 AC15
1
5
3
0.2
5
3
0.05 5
2.5
5
2
0.03 5
5
1.5
5
1
-
DC12
5
2.5
0.6
0.3
-
DC14
1
0.2
0.05
0.03
-
Functions and
characteristics
Electrical and mechanical
accessories
Compact NS100 to 630
0
Remote tripping
PB101036-28
MX or MN voltage releases are used to trip the circuit breaker.
MN undervoltage release
This release trips the circuit breaker when the control voltage drops below a tripping
threshold:
b tripping threshold between 0.35 and 0.7 times the rated voltage
b circuit breaker closing is possible if the voltage exceeds 0.85 times the rated
voltage. For a lower value, circuit breaker closing cannot be guaranteed.
Circuit breaker tripping by an MN release meets the requirements of standard
IEC 60947-2.
MX or MN voltage release.
Time-delay unit for an MN release
Eliminates nuisance tripping due to transient voltage dips lasting 200 ms.
It is used in conjunction with:
b a 250 V DC MN release, control voltage 220/240 V AC
b a 48 V DC MN release, control voltage 48 V AC.
MX shunt release
Trips the circuit breaker when the control voltage rises above 0.7 x Un.
Control signals can be of the impulse type (u 20 ms) or maintained.
Operation
When the circuit breaker has been tripped by an MN or MX release, it must be reset
locally.
MN or MX tripping takes priority over manual closing.
In the presence of a standing trip order, closing of the contacts, even temporary,
is not possible.
Mechanical characteristics
b endurance is equal to 50 % of the mechanical endurance of the circuit breaker
b the releases clip in behind the front cover
b connection using wires up to 1.5 mm2, to integrated terminal blocks.
Electrical characteristics
b
v
v
b
consumption:
pick-up (MX): < 10 VA
seal-in (MN and MNR): < 5 VA.
response time: < 50 ms.
45
Functions and
characteristics
Electrical and mechanical
accessories
Compact NS100 to 630
Rotary handles
PB101034-30
There are two types of rotary handle:
b direct rotary handle
b extended rotary handle.
There are two models:
b standard with a black handle
b VDE with a red handle and yellow front for machine-tool control.
Direct rotary handle
Degree of protection IP40, IK07.
PB101035-55
Compact NS250L with a direct rotary handle.
The direct rotary handle maintains:
b visibility of and access to trip unit settings
b suitability for isolation
b indication of the three positions O (OFF), I (ON) and tripped
b access to the "push to trip" button
b circuit breaker locking capability in the OFF position by one to three padlocks,
shackle diameter 5 to 8 mm (not supplied).
It replaces the circuit-breaker front cover.
Accessories transform the standard direct rotary handle for the following situations:
b motor control centre (MCC) switchboards:
v door opening disabled when the circuit breaker is ON
v circuit-breaker closing is disabled if the door is open
b a higher degree of protection (IP43, IK07)
b machine-tool control, complying with CNOMO E03.81.501, IP54, IK08.
Extended rotary handle
Degree of protection IP 55, IK08.
This handle makes it possible to operate circuit breakers installed at the back of
switchboards, from the switchboard front.
Compact NS250L with an extended rotary handle.
It maintains:
b suitability for isolation
b indication of the three positions O (OFF), I (ON) and tripped
b access to trip unit settings, when the switchboard door is open
b circuit breaker locking capability in the OFF position by one to three padlocks,
shackle diameter 5 to 8 mm (not supplied).
The door cannot be opened if the circuit breaker is ON or locked.
The extended rotary handle is made up of:
b a unit that replaces the front cover of the circuit breaker (secured by screws)
b an assembly (handle and front plate) on the door that is always secured in the
same position, whether the circuit breaker is installed vertically or horizontally
b an extension shaft that must be adjusted to the distance. The min/max distance
between the back of circuit breaker and door is:
v 185 to 600 mm for Compact NS100 to 250
v 210 to 625 mm for Compact NS400 to 630.
For withdrawable configurations, the extended rotary handle is also available with a
telescopic shaft with two stable positions.
46
0
Electrical and mechanical
accessories
Compact NS100 to 630
Functions and
characteristics
0
Motor-mechanism module
PB101037-40
When equipped with a motor-mechanism module, Compact NS circuit breakers
feature very high mechanical endurance as well as easy and sure operation:
b all circuit-breaker indications and information remain visible and accessible,
including trip-unit settings and indications
b suitability for isolation is maintained and padlocking remains possible
b double insulation of the front face.
Applications
b local motor-driven operation, centralised operation, automatic distribution control
b normal/standby source changeover or switching to a replacement source to
optimise energy costs
b load shedding and reconnection.
Automatic operation
b circuit-breaker ON and OFF controlled by two impulse-type or maintained control
signals
b automatic spring charging following voluntary tripping (by MN or MX),
with standard wiring
b mandatory manual reset following tripping due to an electrical fault.
DB104579
Compact NS250H with motor mechanism.
Manual operation
b transfer to manual mode using a switch (9) with possibility of remote mode
indication
b circuit-breaker ON and OFF controlled by 2 pushbuttons
b recharging of stored-energy system by pumping the lever 9 times
b padlocking in OFF position.
Installation and connection
All installation (fixed, plug-in/withdrawable) and connection possibilities are
maintained.
Motor-mechanism module connections are made behind its front cover to integrated
terminals, for cables up to 2.5 mm2.
Accessories
b keylock for locking in OFF position
b operations counter for the Compact NS400 and NS630, indicating the number of
ON and OFF cycles. The counter must be installed on the front of the motormechanism module.
Characteristics
6
7
8
9
10
Contact position indicator (suitability for isolation).
Outgoing-circuit identification labels.
Spring status indicator (charged, discharged).
Locking device (keylock).
Locking device (OFF position), using 1 to 3 padlocks,
shackle diameter 5 to 8 mm, not supplied.
Manual spring-charging lever.
I (ON) pushbutton.
O (OFF) pushbutton.
Manual/auto mode selection switch. The position of this
switch can be indicated remotely.
Operations counter (Compact NS400/630).
Motor mechanism
Response time (ms)
MT100 to MT630
Opening
Closing
Cycles/minute max.
DC
AC 50/60 Hz
< 600
< 80
Rate
4
Control voltage (V)
24/30 - 48/60 - 110/130 - 250
48 (50 Hz) - 110/130
220/240 - 380/440
Consumption (W) (1)
DC (W)
Opening
y 500
Closing
y 500
AC (VA)
Opening
y 500
Closing
y 500
(1) For NS100/250, motor "vibratory" type consider inrush current as 2 In during 10 ms cycling.
Electrical endurance
Circuit breaker + motor-mechanism module, in thousands of operations
(IEC 60947-2), at 500 V - 2P, 750 V - 3P.
DB105055
1
2
3
4
5
47
Electrical and mechanical
accessories
Compact NS100 to 630
Functions and
characteristics
0
Locking systems
Locking in the OFF position guarantees isolation as per IEC 60947-2.
Padlocking systems can receive up to three padlocks with shackle diameters ranging
from 5 to 8 mm (padlocks not supplied).
Control device
Toggle
Direct rotary handle
MCC rotary handle
Rotary handle
Extended rotary handle
Meansrequired
Accessories
Lock in OFF position
Lock in OFF or ON
position
Lock in OFF position
padlock
padlock
removable device
fixed device
padlock
keylock
keylocklocking device
+ keylock
keylock
padlock
padlock
keylock
padlock
keylock
keylocklocking device
+ keylock
DB104583
DB104582
Lock in OFF position
Lock in OFF position
Lock in OFF position,
door opening
prevented
Lock in OFF position
motor mechanism
locked out
DB104581
Motor mechanism
Function
ON
I
pr
of
al
ux
O
OFF
Locking of the toggle using a
removable device.
Locking of the toggle using a
fixed device.
Locking of the rotary handle
using a padlock or a keylock.
DB104585
DB104587
DB104584
Escutcheons are an optional feature mounted on the
switchboard door. They increase the degree of
protection to at least IP40, IK07.
DB104586
Escutcheons
ON
I
push
to
trip
Front-panel escutcheons for
toggle. Secures to the panel,
from the front.
48
Toggle cover:
b degree of protection IP43,
IK07
b fits on the front of the circuit
breaker.
O
OFF
Front-panel escutcheon for
rotary handle.
Secures to the panel by four
screws, from the front.
Electrical and mechanical
accessories
Compact NS100 to 630
Functions and
characteristics
0
Protection collars maintain the degree of protection,
whatever the position of the device (connected,
disconnected).
b front-panel escutcheons are mandatory (same as
those for rotary handles and ammeter modules)
b collars are mounted on the device using two screws
b escutcheons are attached to the switchboard
b a toggle extension is supplied with the collar.
DB104589
Protection collar for toggle
Front-panel escutcheons for motor mechanism,
rotary handles, ammeter modules
Same as for fixed devices.
Outgoing-circuit identification
DB104590
Compact NS100 to 630 devices come with clip-in labels for hand-written indications.
It is also possible to use pre-printed Telemecanique labels part number AB1-**:
b Compact NS100 to 250: 8 digits
b Compact NS400 to 630: 16 digits.
Identification accessories.
Sealing accessories
DB104591
This option includes the elements required to fit lead seals to prevent:
b front removal
b rotary-handle removal
b opening of the motor-mechanism module
b access to auxiliaries
b access to trip-unit settings
b trip-unit removal
b access to earth-leakage protection settings
b terminal-shield removal
b access to power connections.
Sealing accessories.
49
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Functions and
characteristics
0
Locking on the device
DB104804
1 Fault trip indication and
reset button.
2 OFF position locking.
3 Electrical closing
pushbutton.
4 ON pushbutton.
5 OFF pushbuton.
6 Operating mechanism
charged and "ready to
close" indication.
7 Pushbutton locking.
8 Main contact position
indication.
9 Operation counter.
PB100811-32
Pushbutton locking
Access to pushbuttons protected by transparent cover.
b The transparent cover blocks access to the pushbuttons used to open and close
the device.
It is possible to independently lock the opening button and the closing button. The
locking device is often combined with a remote operating mechanism.
The pushbuttons may be locked using either:
b three padlocks (not supplied)
b lead seal
b two screws.
PB100810-32
Device locking in the OFF position
Pushbutton locking using a padlock.
The circuit breaker is locked in the OFF position by physically maintaining the
opening pushbutton pressed down:
b using padlocks (one to three padlocks, not supplied)
b using keylocks (one or two different keylocks, supplied).
Keys may be removed only when locking is effective (Profalux or Ronis type locks).
The keylocks are available in any of the following configurations:
b one keylock
b one keylock mounted on the device + one identical keylock supplied separately for
interlocking with another device
b two different key locks for double locking.
Profalux and Ronis keylocks are compatible with each other.
A locking kit (without locks) is available for installation of one or two keylocks (Ronis,
Profalux, Kirk or Castell).
PB100812-32
Accessory-compatibility
3 padlocks and/or 2 keylocks.
Cable-type door interlock
This option prevents door opening when the circuit breaker is closed and prevents
circuit breaker closing when the door is open.
For this, a special plate associated with a lock and a cable is mounted on the right
side of the circuit breaker.
With this interlock installed, the source changeover function cannot be implemented.
PB100813-30
OFF position locking using a padlock.
OFF position locking using a keylock.
50
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Functions and
characteristics
0
Locking on the chassis
DB104805
1 Racking-handle port.
2 "Connected/test/
disconnected" position
indication.
3 Racking interlock.
4 Racking-handle storage.
5 Reset pushbutton.
6 Padlock locking.
7 Keylock locking.
8 Chassis front plate
(accessible with cubicle
door closed).
9 "Disconnected" position
door interlock.
10 Mismatch protection.
"Disconnected" position locking
Mounted on the chassis and accessible with the door closed, these devices lock the
circuit breaker in the "disconnected" position in two manners:
b using padlocks (standard), up to three padlocks (not supplied)
b using keylocks (optional), one or two different keylocks are available.
Profalux and Ronis keylocks are available in different options:
b one keylock
b two different keylocks for double locking
b one (or two) keylocks mounted on the chassis + one (or two) identical keylocks
supplied separately for interlocking with another device.
A locking kit (without locks) is available for installation of one or two keylocks (Ronis,
Profalux, Kirk or Castell).
Connected", "disconnected" and "test" position locking
The "connected", "disconnected" and "test" positions are shown by an indicator. The
exact position is obtained when the racking handle blocks. A release button is used
to free it.
On request, the "disconnected" position locking system may be modified to lock the
circuit breaker in any of the three positions, "connected", "disconnected" and "test".
Door interlock catch
Mounted on the right or left-hand side of the chassis, this device inhibits opening of
the cubicle door when the circuit breaker is in "connected" or "test" position. It the
breaker is put in the "connected" position with the door open, the door may be closed
without having to disconnect the circuit breaker.
Racking interlock
E89585
This device prevents insertion of the racking handle when the cubicle door is open.
Cable-type door interlock
This option is identical for fixed and drawout versions.
Racking interlock between crank and OFF pushbutton
Racking interlock.
This option makes it necessary to press the OFF pushbutton in order to insert the
racking handle and holds the device open until the handle is removed.
Automatic spring discharge before breaker removal
PB100815-32
This option discharges the springs before the breaker is removed from the chassis.
Mismatch protection
Mismatch protection ensures that a circuit breaker is installed only in a chassis with
compatible characteristics. It is made up of two parts (one on the chassis and one on
the circuit breaker) offering twenty different combinations that the user may select.
Mismatch protection.
51
Functions and
characteristics
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Indication contacts are available:
b in the standard version for relay
applications
b in a low-level version for control of PLCs
and electronic circuits.
Indication contacts
0
ON/OFF indication contacts (OF)
Rotary type changeover contacts directly driven by the mechanism. These contacts
trip when the minimum isolation distance between the main circuit-breaker contacts
is reached.
OF
PB100806-32
Supplied as standard
Maximum number
Breaking capacity (A)
p.f.: 0.3
AC12/DC12
Standard
V AC 240/380
480
690
V DC 24/48
125
250
Low-level
V AC 24/48
240
380
V DC 24/48
125
250
(1) Standard contacts: 10 A; optional contacts: 6 A.
4
12
minimum load: 100 mA/24 V
10/6 (1)
10/6 (1)
6
10/6 (1)
10/6 (1)
3
minimum load: 2 mA/15 V DC
6
6
3
6
6
3
"Fault-trip" indication contacts (SDE)
ON/OFF indication contacts (OF) (microswitch type).
Circuit-breaker tripping due to a fault is signalled by:
b a red mechanical fault indicator (reset)
b one changeover contact (SDE).
Following tripping, the mechanical indicator must be reset before the circuit breaker
may be closed.
PB100807-20
SDE
Supplied as standard
Maximum number
Breaking capacity (A)
p.f.: 0.3
AC12/DC12
Standard
V AC 240/380
480
690
V DC 24/48
125
250
ON/OFF indication contacts (OF) (rotary type).
PB100820-32
Low-level
V AC 24/48
240
380
V DC 24/48
125
250
1
2
minimum load: 100 mA/24 V
5
5
3
3
0.3
0.15
minimum load: 2 mA/15 V DC
3
3
3
3
0.3
0.15
Combined "connected/closed" contacts (EF)
Additional "fault-trip" indication contacts (SDE).
The contact combines the "device connected" and the "device closed" information to
produce the "circuit closed" information.
Supplied as an option for Masterpact NW, it is mounted in place of the connector of
an additional OF contact.
EF
PB100816-32
Maximum number
Breaking capacity (A)
p.f.: 0.3
AC12/DC12
Standard
V AC 240/380
480
690
V DC 24/48
125
250
Low-level
Combined contacts.
52
V AC 24/48
240
380
V DC 24/48
125
250
8
minimum load: 100 mA/24 V
6
6
6
2.5
0.8
0.3
minimum load: 2 mA/15 V DC
5
5
5
2.5
0.8
0.3
Functions and
characteristics
Electrical and mechanical
accessories
Masterpact NW10 to NW40
0
PB100817-32
"Connected", "disconnected" and "test" position carriage
switches
Three series of optional auxiliary contacts are available for the chassis:
b changeover contacts to indicate the "connected" position (CE)
b changeover contacts to indicate the "disconnected" position (CD). This position is
indicated when the required clearance for isolation of the power and auxiliary circuits
is reached.
b changeover contacts to indicate the "test" position (CT). In this position, the power
circuits are disconnected and the auxiliary circuits are connected.
Additional actuators
A set of additional actuators may be installed on the chassis to change the functions
of the carriage switches.
CE, CD and CT "connected/disconnected/test" position
carriage switches.
Contacts
CE
Maximum number
Standard with additional
actuators
Breaking capacity (A)
p.f.: 0.3
AC12/DC12
Standard
V AC 240
380
480
690
V DC 24/48
125
250
Low-level
V AC 24/48
240
380
V DC 24/48
125
250
CD
CT
3
3
3
9
0
0
6
3
0
6
0
3
minimum load: 100 mA/24 V
8
8
8
6
2.5
0.8
0.3
minimum load: 2 mA/15 V
DC
5
5
5
2.5
0.8
0.3
53
Functions and
characteristics
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Two solutions are available for remote
operation of Masterpact devices:
b a point-to-point solution
b a bus solution with the COM
communication option.
Remote operation: remote ON / OFF
PB100765-68
The remote ON / OFF function is used to remotely open and close the circuit breaker.
It is made up of:
b an electric motor (MCH) equipped with a "springs charged" limit switch contact
(CH)
b two voltage releases:
v a closing release (XF)
v an opening release (MX).
Optionally, other functions may be added:
b a "ready to close" contact (PF)
b an electrical closing pushbutton (BPFE)
b remote reset following a fault.
A remote-operation function is generally combined with:
b device ON / OFF indication (OF)
b "fault-trip" indication (SDE).
DB105191
Wiring diagram of a point-to-point remote ON / OFF function
Note:
An opening order always takes priority over a closing order.
If opening and closing orders occur simultaneously, the
mechanism discharges without any movement of the main
contacts. The circuit breaker remains in the open position
(OFF).
In the event of maintained opening and closing orders, the
standard mechanism provides an anti-pumping function by
blocking the main contacts in open position.
Anti-pumping function. After fault tripping or intentional opening
using the manual or electrical controls, the closing order must
first be discontinued, then reactivated to close the circuit
breaker.
When the automatic reset after fault trip (RAR) option is
installed, to avoid pumping following a fault trip, the automatic
control system must take into account the information supplied
by the circuit breaker before issuing a new closing order or
blocking the circuit breaker in the open position.
54
DB101165
Wiring diagram of a bus-type remote ON / OFF function
Note:
MX communicating releases are of the impulse type only and
cannot be used to lock a circuit breaker in OFF position. For
locking in OFF position, use the remote tripping function
(2nd MX or MN).
0
Functions and
characteristics
Electrical and mechanical
accessories
Masterpact NW10 to NW40
0
Electric motor (MCH)
PB100808-32
The electric motor automatically charges and recharges the spring mechanism when
the circuit breaker is closed. Instantaneous reclosing of the breaker is thus possible
following opening. The spring-mechanism charging handle is used only as a backup
if auxiliary power is absent.
The electric motor (MCH) is equipped as standard with a limit switch contact (CH)
that signals the "charged" position of the mechanism (springs charged).
Characteristics
Power supply
V AC 50/60 Hz
V DC
Operating threshold
Consumption (VA or W)
Motor overcurrent
Charging time
Operating frequency
CH contact
48/60 - 100/130 - 200/240 - 277 - 380/415 - 400/440 - 480
24/30 - 48/60 - 100/125 - 200/250
0.85 to 1.1 Un
180
2 to 3 In for 0.1 s
maximum 4 seconds
maximum 3 cycles per minute
10 A at 240 V
Voltage releases (XF and MX)
DB101179
Electric motor (MCH) for Masterpact NW.
Their supply can be maintained or automatically disconnected.
Closing release (XF)
The XF release remotely closes the circuit breaker if the spring mechanism is
charged.
Opening release (MX)
The MX release instantaneously opens the circuit breaker when energised. It locks
the circuit breaker in OFF position if the order is maintained (except for MX
"communicating" releases).
Note: whether the operating order is maintained or automatically disconnected (pulse-type), XF
or MX "communicating" releases ("bus" solution with "COM" communication option) always have
an impulse-type action.
Characteristics
XF
MX
V AC 50/60 Hz
V DC
Operating threshold
Consumption (VA or W)
24 - 48 - 100/130 - 200/250 - 277 - 380/480
12 - 24/30 - 48/60 - 100/130 - 200/250
0.85 to 1.1 Un
0.7 to 1.1 Un
pick-up: 200 (during 200 ms) pick-up: 200 (during 200 ms)
hold: 4.5
hold: 4.5
Circuit-breaker response time at Un 70 ms ± 10 (NW y 4000 A) 50 ms ± 10 (NW)
80 ms ± 10 (NW > 4000 A)
PB100809-16
Power supply
"Ready to close" contact (PF)
PB100818-16
XF and MX voltage releases.
The "ready to close" position of the circuit breaker is indicated by a mechanical indicator
and a PF changeover contact. This signal indicates that all the following are valid:
b the circuit breaker is in the OFF position
b the spring mechanism is charged
b a maintained opening order is not present:
v MX energised
v fault trip
v remote tripping (second MX or MN)
v device not completely racked in
v device locked in OFF position
v device interlocked with a second device.
Characteristics
Supplied as standard
Maximum number
Breaking capacity
p.f.: 0.3
AC12/DC12
Standard
V AC 240/380
480
690
V DC 24/48
125
250
"Ready to close" contacts (PF).
Low-level
V AC 24/48
240
380
V DC 24/48
125
250
1
minimum load: 100 mA/24 V
5
5
3
3
0.3
0.15
minimum load: 2 mA/15 V DC
3
3
3
3
0.3
0.15
55
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Functions and
characteristics
Electrical closing pushbutton (BPFE)
DB101167
Located on the front panel, this pushbutton carries out electrical closing of the circuit
breaker. It is generally associated with the transparent cover that protects access to
the closing pushbutton.
Electrical closing via the BPFE pushbutton takes into account all the safety functions
that are part of the control/monitoring system of the installation.
The BPFE connects to the closing release (XF) in place of the COM module.
Remote reset after fault trip
DB101169
Electrical reset after fault trip (Res)
Following tripping, this function resets the "fault trip" indication contacts (SDE) and
the mechanical indicator and enables circuit breaker closing.
Power supply: 110 / 130 V AC and 200 / 240 V AC.
Automatic reset after fault trip (RAR)
Following tripping, a reset of the mechanical indicator (reset button) is no longer
required to enable circuit-breaker closing. The mechanical (reset button) and
electrical (SDE) indications remain in fault position until the reset button is pressed.
56
0
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Functions and
characteristics
0
Remote operation: remote tripping
PB100819-68
This function opens the circuit breaker via an electrical order. It is made up of:
b a shunt release (second MX)
b or an undervoltage release (MN)
b or a delayed undervoltage release (MN + delay unit).
These releases (2nd MX or MN) cannot be operated by the communication bus.
The delay unit, installed outside the circuit breaker, may be disabled by an
emergency OFF button to obtain instantaneous opening of the circuit breaker.
DB101177
DB101175
DB101172
Wiring diagram for the remote-tripping function
Voltage releases (second MX)
PB100809-16
When energised, the MX voltage release instantaneously opens the circuit breaker.
A continuous supply of power to the second MX locks the circuit breaker in the OFF
position.
Characteristics
Power supply
MX or MN voltage release.
V AC 50/60 Hz
V DC
Operating threshold
Permanent locking function
Consumption (VA or W)
Circuit-breaker response time at Un
24 - 48 - 100/130 - 200/250 - 277 - 380/480
24/30 - 48/60 - 100/130 - 200/250
0.7 to 1.1 Un
0.85 to 1.1 Un
pick-up: 200 (during 200 ms)
hold: 4.5
50 ms ±10
Instantaneous voltage releases (MN)
The MN release instantaneously opens the circuit breaker when its supply voltage
drops to a value between 35 % and 70 % of its rated voltage. If there is no supply on
the release, it is impossible to close the circuit breaker, either manually or electrically.
Any attempt to close the circuit breaker has no effect on the main contacts. Circuitbreaker closing is enabled again when the supply voltage of the release returns to
85 % of its rated value.
Characteristics
Power supply
Operating threshold
V AC 50/60 Hz
V DC
opening
closing
Consumption (VA or W)
MN consumption with delay unit
Circuit-breaker response time at Un
24 - 48 - 100/130 - 200/250 - 380/480
12 - 24/30 - 48/60 - 100/130 - 200/250
0.35 to 0.7 Un
0.85 Un
pick-up: 200 (during 200 ms)
hold: 4.5
pick-up: 400 (during 200 ms)
hold: 4.5
90 ms ±5
MN delay units
To eliminate circuit-breaker nuisance tripping during short voltage dips, operation of
the MN release can be delayed. This function is achieved by adding an external delay
unit in the MN voltage-release circuit. Two versions are available, adjustable and nonadjustable.
Characteristics
Power supply
VAC 50-60 Hz/DC
Operating threshold
non-adjustable
adjustable
opening
closing
Consumption of delay unit alone (VA or W)
Circuit-breaker response non-adjustable
time at Un
adjustable
100/130 - 200/250
48/60 - 100/130 - 200/250 - 380/480
0.35 to 0.7 Un
0.85 Un
pick-up: 200 (during 200 ms)
hold: 4.5
0.25 s
0.5 s - 0.9 s - 1.5 s - 3 s
57
Functions and
characteristics
Electrical and mechanical
accessories
Masterpact NW10 to NW40
Shields, blanking plates, counters
Auxiliary terminal shield (CB)
PB100821-68
Optional equipment mounted on the chassis, the shield prevents access to the
terminal block of the electrical auxiliaries.
Operation counter (CDM)
PB100822-32
The operation counter sums the number of operating cycles and is visible on the front
panel. It is compatible with manual and electrical control functions.
Escutcheon (CDP)
DB101173
Optional equipment mounted on the door of the cubicle, the escutcheon increases
the degree of protection to IP 40 (circuit breaker installed free standing: IP30) .
It is available in fixed and drawout versions.
Blanking plate (OP) for escutcheon
Used with the escutcheon, this option closes off the door cut-out of a cubicle not yet
equipped with a device. It may be used with the escutcheon for both fixed and
drawout devices.
Transparent cover (CP) for escutcheon
Optional equipment mounted on the escutcheon, the cover is hinged and secured by
a screw. It increases the degree of protection to IP 54, IK10. It adapts to drawout
devices.
PB100776-42
Escutcheon (CDP) with blanking plate.
Transparent cover (CP) for escutcheon.
58
0
59
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