GE Energy Connections
Grid Solutions
PRIMA
Technical Data
Plug-in Auxiliary Relays for Electrical Substations
Publication reference: PRIMA/EN TD/C
Downloaded from Arrow.com.
Downloaded from Arrow.com.
PRIMA: Plug-in rapid-wire integrated multi-mount auxiliary relays
Captive nut
Relay
connector
Figure 1
Relay
contacts
Wire
placed on
screw
Snap lock
feature
Coding
plug
Snap lock
feature
Relay and cross section of socket shown actual size
Features
Models Available
• Compact design –
12 relays per 19 inch rack
• PRE electrical reset relays
• Wide operative voltage range
• PRH hand/electrical reset relays
• PRS self reset relays
• Optional test feature
• Self-reset flag as standard
• Optional timer
• Built-in snap lock feature
automatically locks the relay to its
socket
• Unique terminal design ensures
rapid wiring – (time saving of up
to 75%)
• Choice of two types of terminal
PRIMA
• DIN rail, panel or rack mounting
• Simple mechanical coding for
relay to socket connection
• Manufactured from flameretardant materials
Downloaded from Arrow.com.
Application
Prima, is a compact, voltage-operated,
attracted armature auxiliary relay with
instantaneous and time delayed auxiliary
functions. It is specifically designed for
electrical power generation
installations, electrical substations and
electrical utility control systems. Great
emphasis has been placed on making it
as easy as possible to specify, order,
configure and install.
Description
Ease of installation is ensured by the
two-part design in which the relay plugs
into a socket which may be specified
with front or rear connected terminals. A
snaplock feature between relay and
socket, eliminates the need for separate
wire clips. The front-connected socket,
mainly for DIN rail mounting, may
alternatively be mounted on a solid
panel via a single fixing screw, whilst the
rear- connected design clips or screw
fixes to suitable panel cut-outs or may be
accommodated on a special rack
mounting frame.
Relay
Contacts
Self reset (PRS) models have 4
changeover contacts except those with
delayed drop-off timer which have only
3 contacts. Hand/electrical reset models
(PRH) and electrical reset models (PRE)
have 3 changeover contacts. All have
silver contact tips to provide long life
and reliability over a wide range of
duties.
Optional magnetic blow-out contacts are
recommended for heavy or highly
inductive loads.
The two types of terminal available
include a unique captive nut design
which makes for wiring time reductions
of up to 75%.
See Technical Data for contact ratings.
The relays are available as either selfreset, electrical reset or hand/electrical
reset types. The range includes a
mechanical operation indicator as
standard and an optional integrated
timer to minimise panel space
requirements.
All relays are fitted with an operation
indicator that follows the contact
operation, with the exception of selfresetting instantaneous relays type PRS
which, when required, can be fitted with
a hand reset indicator.
All the contacts are changeover type,
designed to the latest IEC 255 standards,
ensuring maximum flexibility with
simplified ordering.
Operation indicators
Test/reset buttons
Relays other than the electrical reset
model are available with an optional test
button to check contact and following
indicator operation.
A reset button is fitted on all models
except the electrical reset and self reset
relays with a following flag.
Both test and reset buttons are flush with
the cover and cannot be accidentally
operated.
Figure 2
Timer control adjustment
Time delays
The dc self-reset relays can be fitted with
adjustable timers for delayed operation
or delayed reset. These have a wide
range, from 0.1 to 270s, to be set by the
customer in 4 ranges with overlapping
adjustment. By installing rectifier type
PA01 in series with a dc relay, time
delayed relays can be used on ac
supplies. Timers are supplied set to their
minimum values.
The controls are behind a hinged cover.
Adjustment is by screwdriver, see Figure
2. The rotary switch, on the right hand
side, allows the customer to select from 4
timing ranges. The trimpot is then used
for adjustment within the time range
selected, (see Technical Data).
The cover has provision for the customer
to affix an identification label.
1. Insert relay plug (part way)
2. Rotate plug anti-clockwise
3. Pull assembly out (3mm)
Figure 3
Operation of relay to socket coding
Downloaded from Arrow.com.
4. Rotate assembly to achieve
the desired setting
5. Push assembly home
6. Insert relay into socket
PRIMA
Relay
coding
plug
Socket
Relay connector
Connection between the relay blades
and the socket input and output
terminals is by means of pre-formed
phosphor bronze strips.
Terminal options:
• M3 screw suitable for crimped preinsulated ring tongue connectors
• Cage clamp, suitable for crimped
pre-insulated connectors (flat blade
or boot-lace ferrule) or wires with
stripped ends are considered to be
the least preferred due to wire
settlement with time. Where two wires
are used in the same terminal they
must be of the same size.
Both M3 and cage clamp terminals will
accept two standard crimped wired
connectors per way.
Terminals will accept wire sizes
of 0.5 - 2.5mm2.
Mounting
Front-connected
Prima relays are generally suitable for
mounting side by side, with no gap
between adjacent sockets. This allows
multiple schemes to be installed in the
minimum of panel space. However,
PRIMA relays which are permanently
energised at elevated ambient
temperature (greater than 40°C) should
have a vacant space, equivalent to the
width of one PRIMA, between adjacent
relays. Panels designed should always
consider thermal gradients, and where
PRIMA relays are installed near the top
of non-ventilated panels, at least 100mm
air gap must be allowed between the top
of the relays and the underside of panel
roof.
This is designed primarily for DIN rail
mounting. The wire clip area of the
socket must first be hooked onto the DIN
rail. Pressure should then be applied to
the top of the socket until the bottom of
the socket clips into place. To remove the
socket, pressure should be applied to the
top of the socket; the bottom of the
socket can then be pulled away from the
DIN rail and lifted off. It can also be
panel mounted using a single No 6 selftapping screw. Two location pegs are
moulded into the housing to prevent
rotation. See Figure 11.
PRiMA relays are ruggedised and
specifically designed for operation and
to be part of large scale electrical
fixed installations, where robustness,
reliability and compliance with
substation norms are paramount.
DC Inductive
load breaking
capacity
10
100W
Figure 4
50W
Current (Amperes)
DC breaking duties
1
Inductive L/R ratio 40ms.
Magnetic blow-out contacts
Standard duty contacts
0.1
100
Applied Voltage (Volts)
10
DC Resistive
load breaking
capacity
1000
100
Current (Amperes)
500W
10
100W
PRIMA
1
Magnetic blow-out contacts
Standard duty contacts
0.1
10
Downloaded from Arrow.com.
100
Applied Voltage (Volts)
1000
Rear-connected
12
14
11
Vx
22
24
21
32
34
31
42
44
41
+
—
RL1
4
1
3
A1
A2
10
7
Initiate
contact
ZG1074
Front connected socket
terminal layout
34
24
14
12
22
32
42
42
32
22
12
14
24
34
44
A2
A1
11
21
31
41
31
21
A1
A2
41
A custom designed 483mm (19 inch) rack is available into which 12
relays will fit. See Figure 9 for rack assembly and blanking plate
details.
Rear connected socket
terminal layout
44
11
Viewed from front
Relay to socket coding
A simple mechanical relay to socket coding system offering twelve
combinations is employed to prevent the relay being plugged into the
wrong socket.
See Figure 3.
Viewed from rear
Output contacts
Break
Make
Common +
Figure 5
This is designed to be rack mounted using the clip-on mounting feature
as follows: The wire clip area of the socket must be placed on the rack
first, and pressure should then be applied to the top of the socket until
it clips into place. To remove the socket, apply pressure to the top of the
socket and push away from the rack. Alternatively, it may be panel
mounted using two No 6 self-tapping screws or the clip-on mounting
feature as described above. The socket can then be lifted from the rack.
See Figure 10 for details of the required cut-outs.
Contact wetting
12 22 32 42
14 24 34 44
11 21 31 41
In SCADA or alarm applications, the minimum recommended "wetting"
values to ensure reliable making of contacts are 24V and 0.5VA.
Where PRiMA relays are installed such that breaking of contacts will
initiate the alarm, it is recommended that the SCADA has an alarm
initiation delay of at least 2ms.
Type PRS – Instantaneous self reset relay
This prevents spurious alarming when cubicle doors are closed, and
continuity may be broken for a fleeting instant due to the transmitted
mechanical shock.
Type PRS – Self reset relay with time delayed operation
12
14
11
Vx
22
24
21
32
34
31
Rectifier Units
42
44
41
A PA01 rectifier unit may be used with relays with timer or the
+
—
RL1
4
3
1
A1
7
Initiate
contact
Front connected socket
terminal layout
Rear connected socket
terminal layout
44
34
24
14
12
22
32
42
42
32
22
12
14
24
34
44
A2
A1
21
31
41
31
21
A1
A2
41
11
11
Viewed from front
Viewed from rear
Output contacts
Break
Make
Common +
Downloaded from Arrow.com.
12 22 32 42
14 24 34 44
11 21 31 41
24/27V rated relays to allow their use on ac supplies. The PA01 is
housed in a standard Prima case and must be used in conjunction with
a socket suitable for the application.
A2
10
xt
secs
ZG1078
In the most onerous application of relays being mounted directly on
swing-frame cubicle doors, it is strongly recommended that any "break
to alarm" circuits utilise 1VA load for better contact wetting.
PRIMA
Figure 6
12
14
11
Vx
22
24
21
32
34
31
42
44
41
Vx
+
—
6
7
A1
1
xt
secs
ZG1078
Initiate
contact
42
41
34
14
24
32
22
A2
A1
31
21
22
12
12
32
42
14
24
34
44
11
21
31
41
A1
A2
11
RL1
3
1
14
6
7
Operate A1
5
3
14
Front connected socket
terminal layout
A2
10
Rear connected socket
terminal layout
44
34
24
14
12
22
32
42
42
32
22
12
14
24
34
44
A2
A1
11
21
31
41
31
21
A1
A2
11
Viewed from front
Viewed from rear
Output contacts
Output contacts
Figure 7
42
44
41
—
41
Viewed from rear
Viewed from front
22 32 42
24 34 44
21 31 41
Break
Make
Common +
32
34
31
ZG1074
Rear connected socket
terminal layout
Front connected socket
terminal layout
44
A2
10
22
24
21
+
Reset
RL1
3
3
14
12
14
11
22 32 42
24 34 44
21 31 41
Break
Make
Common
Type PRS – Self reset relay with time delayed reset
Figure 8
Types PRH – Hand and electrically reset and
PRE – Electrically reset
The polarity indicated for the output contacts is recommended
where magnetic blow-out contacts are used.
Figure 9
Figure 10 Types PRS and PA – Self reset ac relay
Types PRS and PA – Self reset ac relay
with time delayed operation
12
14
11
Vx
22
24
21
32
34
31
with time delayed reset
Vx
42
44
41
+
+
14
12
14
11
22
24
21
32
34
31
42
44
41
—
—
Initiate
Contact
RL1
4
3
1
A1
xt
secs
External
AC Unit
PA01
32
A1
Front connected socket
terminal layout
Initiate
Contact
A2
6
A1
22
32
A2
A1
Rear connected socket
terminal layout
RL1
3
3
1
xt
secs
External
AC Unit
PA01
A2
22
A2
Front connected socket
terminal layout
Rear connected socket
terminal layout
PRIMA
44 34
24 14
12 22
32 42
44 34
24 14
12 22
32 42
42
32
22 12
14 24
34 44
42 32
22 12
14 24
34 44
A2
A1
11 21
A1
11 21
31
21 11
41
A1
Viewed from front
Viewed from rear
Output contacts
Break
Make
Common +
Downloaded from Arrow.com.
31 41
A2
12 22 32 42
14 24 34 44
11 21 31 41
A2
41
31
A1
21 11
Viewed from front
31 41
A2
Viewed from rear
Output contacts
Break
Make
Common +
22 32 42
24 34 44
21 31 41
Technical Data
Ratings
All models are for ac/dc operation except for the following which are dc only:
• self reset relays with timers
• 24/27V hand/electrical reset models
The use of rectifier unit PA01 will allow all dc only models to be used on ac supplies.
Standard coil ratings
24/27V, 30/34V, 48/54V,
110/125V, 220/250V
PA01
24/250V ac
Operative ranges
Voltage
Continuous
Maximum
rating
(V)
operating
voltage
range (V)
DC + peak
ripple
voltage
24/27
30/34
48/54
110/125
220/250
19 - 32.4
24 - 41
37.5 - 65
87.5 - 150
175 - 275
35.5V
45V
71.5V
165V
330V
Frequency
50/60Hz
Burdens
Operate
(specified at lower rated voltage)
Self reset
Hand/electrical reset
Self-reset timer - DPU
Self-reset timer - DDO
DC(W)
<3
<4
<4
<4
Reset/timing
AC(VA)
<3
<4
n/a
n/a
DC(W)
n/a
<12*
<1
<3
AC(VA)
n/a
<12
n/a
n/a
*Cut-off after approximately 30ms.
Operating time
For a normally open contact to
close at lower rated voltage
30ms typically for ac operated relays
25ms typically for dc operated relays
Reset time
For a normally closed contact to reset
<100ms typically
Timer range (seconds)
The timer ranges shown here are approximate, and for the lower rated voltage
Switch position
1
2
3
4
DPU mode
0.10 - 0.15
0.13 - 1.6
1.0 - 17.0
16.0 - 270.0
DDO mode
0.10 - 0.20
0.18 - 2.0
1.2 - 20.0
16.0 - 270.0
Note 2: Adjustments to the potentiometer and switch should be made using an insulated
tool.
Downloaded from Arrow.com.
PRIMA
Note1: Timer setting instructions on reverse of blank identification labels provided with
each relay.
Repeatability
±2%
Variation of timing over the operative voltage range
±15% or 20ms whichever is the greater
Variation of timing with
temperature over the operative
temperature range
±10% or 20ms whichever is
the greater
Contacts
All relay types are fitted with
changeover contacts (break before
make) only. The number of contacts
available for customer use varies
with relay type. See Figures 5 - 8.
Number of output contacts
Self reset relay
Hand /electrical reset relay
Electrical reset relay
Self reset timer - DPU
Self reset timer - DDO
4
3
3
4
3
Contact ratings
Contact
type
Standard
Current
AC
DC
Magnetic
blow-out
DC
Make and carry
continuously
1250VA with
maxima of 10A
and 300V
1250W with
maxima of 10A
and 300V
Make and
carry for 3s
7500VA with
maxima of 30A
and 300V
7500W with
maxima of 30A
and 300V
1250W with
maxima of 10A
and 300V
7500W with
maxima of 30A
and 300V
Break
1250VA with
maxima of
10A and 300V
120W (resistive)
30W* (inductive)
at 100V.
L/R = 40ms
See Figure 4
for curves
350W (resistive)
50W* (inductive)
at 100V.
L/R = 40ms
See Figure 4
for curves
* Normally closed contacts breaking with positive potential applied to
the moving contacts
PRIMA
Contacts in use
1
2
3
4
Continuous rating per contact (amps)
10
10
5
5
Maximum rate of operation, 600 per hour
Durability
Loaded contact
100,000 operations
Unloaded contact 1,000,000 operations
Downloaded from Arrow.com.
High voltage withstand
Dielectric withstand
IEC 60255-5: 1977
ANSI/IEEE
C37.90:1989
High voltage impulse
IEC 60255-5:1977
Insulation resistance
IEC 60255-5:1977
2kV rms for 1 minute between all
terminals and case earth.
2kV rms for 1 minute
between terminals of independent
circuits including contact circuits, with
terminals on each independent circuit
connected together.
1kV rms for 1 minute across
open contacts of output relays.
1.5kV rms across open outgoing
contact pairs.
Three positive and three negative
impulses of 5kV peak, 1.2/50 µs, 0.5J
between all independent circuits and
between all terminals and earth.
>100MV when measured at 500V dc
Electrical environment
DC supply interruption
IEC 60255-11:1979
The unit will withstand a 10ms
interruption in the auxiliary supply,
under normal operating conditions,
without de-energising.
High frequency disturbances
IEC 60255-22-1:1988 Class III
Fast transient disturbance
IEC 60255-22-4: 1992 Class IV
EMC Compliance
89/336/EEC
2.5kV peak between independent
circuits and case.
1.0kV peak across terminals of the
same circuit.
Applied directly to auxiliary supply.
Compliance to the European Commission
Directive on EMC is claimed via the
Technical Construction File route.
EN 50081-2:1994
EN 50082-2:1995
Generic Standards were used to establish
conformity.
Product safety
72/23/EEC
Compliance with the European
Downloaded from Arrow.com.
EN61010-1: 1993/A2:1995
EN60950: 1992/A11: 1997
Compliance is demonstrated by
reference to generic safety standards.
File No. E194075
UL Recognised component for the US
and Canada.
PRIMA
Commission Low Voltage Directive.
Atmospheric environment
Temperature
BS EN 60068-2-1:1983
IEC 68-2-2:1974
Storage and transit -25°C to +70°C
Operating -25°C to +55°C
Humidity
IEC 68-2-3:1969
56 days at 93% RH and 40°C
Enclosure protection
BS EN 60529:1993
Relay
IP50 (dust protected)
Socket
IP20
Mechanical environment
Vibration
IEC 60255-21-1:1988
Shock and bump
IEC 255-21-2:1988
Seismic
IEC 255-21-3:1993
Response Class I
Endurance Class I
Shock response Class I
Shock withstand Class I
Bump Class I
Class I
Weight
Relay
190g
Front-connected socket
125g
Rear-connected socket
90g
Housings
See Figures 10 and 11 for details of relay and socket outlines. Rack and DIN rail
mounting details will be provided upon request.
Dimensions
Height
(mm)
PRIMA
Downloaded from Arrow.com.
Depth
(mm)
Width
(mm)
Relay
Front connected socket
Rear connected socket
Moulding material identity
65
85
34
115
50
34
75
56
34
All materials are flame retardant
to specification UL94 (V-O).
All major mouldings have their
material identity moulded into them.
Relay cover
polycarbonate >PC<
Relay
polyphenylene oxide >PPO GF20<
Socket
polyphenylene oxide> PPO GF20<
The rack PR0025 001 will hold up to 12 Prima relays. Unused positions may be blanked off using blanking
plate shown opposite. This may be mounted either side of rack as shown.
443.0
40.4
4 holes
ø2.6x34.2 pitch
102.6
4 holes
ø2.6x34.2 pitch
=
=
102.6
40.4
4 holes
ø2.6x34.2 pitch
102.6
74.0
85.0
Clearance
60.0
for
wiring
34.0
Blanking plate PR0026 001
Fixng screws 2 per plate
24 per bag ZA0005 093
28.0
4 off M6 mounting holes
76.2
88.1
63.0
465.1
482.6
All dimensions in mm
Figure 11
Outline and mounting details for rack and blanking plate
Ø2.8 Hole
Projection detail for clip-on type mountings
47
94
Clearance hole
for No 6 self-tapping screw
53
Ø2.8 Hole
75
CUSTOMERS
I.D. LABEL
51
90
Projection detail for screw fixing type mountings
Top of relay
viewed from rear
12 22 32 42
Terminal
Layout
Sockets may also be
mounted in 19" racks
35
Panel cut-out for screw
fixing socket application
69
Max
panel
thickness
1.2
Available Terminal Combinations
14 24 34 44
11 21 31 41
35
A1 A2
Panel cut-out for clip-on
socket application
Case outline for rear connected relay
Downloaded from Arrow.com.
M3 Ring
Cage Clamp
PRIMA
34
Figure 12
64
Clearance hole
for No 6 self-tapping screw
Ø4.40 Hole
Ø2.8 Hole
110
115
CUSTOMERS
I.D. LABEL
50
34
Top of relay
viewed from front
131
55
Ø4.40 Hole
Panel drilling details for
screw mounting of sockets
35
44 34 24 14
Available Terminal Combinations
Terminal
Layout
A2 A1
41 31 21 11
M3 Ring
7.5
42 32 22 12
Sockets may also be mounted
on DIN rail to specifications
EN50054, DIN46277- 3 & BS5884
Figure 13
Case outline
for front connected relay
Cage Clamp
Information required with order
Relay
Voltage
Electrical or
Self-reset ac/dc
Hand/electrical reset dc
24/27
Socket
Electrical or
Hand/electrical
reset ac
Terminal type
01
30/34
02
12
48/54
03
13
48/54
110/125
04
14
110/125
220/250
05
15
220/250
Timer
30/34
Cage clamp
1
M3 screw
3
Socket type
Self test
Front-connected
F
Rear-connected
R
Delay on drop-off (self-reset dc only)
D
T
Test button fitted
Delay on pick-up (self-reset dc only)
P
B
No test button
No delay (instantaneous)
N
Flag
Following flag
1
Hand-reset flag (self-reset instantaneous only)
2
Quantity
PS
Quantity
PS
Rack
Contacts
Standard contacts
1
Magnetic blow-out contacts
2
Quantity
P
S
(3 contacts DDO timer)
S
3 hand/electrical-reset contacts
H
3 electrical-reset contacts
E
PRIMA
Quantity
PR
Quantity
PR
Quantity
PR
Downloaded from Arrow.com.
0
1
Rectifier
Contact Type (changeover)
4 self-reset contacts
R
Quantity
P
A 0
1
Blanking Plate
Quantity
P
B
0
1
Fixing screws
(24 screws per bag)
Quantity (bags)
P
F
0
1
Downloaded from Arrow.com.
Imagination at work
Grid Solutions
St Leonards Building
Redhill Business Park
Stafford, ST16 1WT, UK
+44 (0) 1785 250 070
www.gegridsolutions.com/contact
© 2017 General Electric. All rights reserved. Information contained in this document is indicative only.
No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project.
This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice.
Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
PRIMA/EN TD/C
Downloaded from Arrow.com.