Gefran GRS Solid state relay DataSheet
Gefran GRS static contactors are compact and reliable devices designed for industrial heating applications. With current ratings from 15 to 120 Amperes and voltages up to 600V AC, they offer precise control of electrical heating elements. GRS contactors feature zero voltage changeover switching, ensuring smooth operation and minimizing electrical disturbances. The DC/AC logic control with push-in connectors simplifies installation and provides easy interfacing with various control systems.
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GRS 15/25/30/40/50/60/75/90/120A
ULTRA-COMPACT STATIC POWER UNITS
WITH DC / AC LOGIC CONTROL
Main applications
• Extrusion, injection, blow moulding,
thermoforming of plastics
• Vulcanization of rubber
• Synthetic fibre production and
polymerisation
• Packing and packaging
• Dryers for ceramics and building
elements
• Industrial electric ovens
• Food processing plants
• Chemical and pharmaceutical
industry
Main features
• Ultra-compact dimensions from 15A to 120A
• Switching at zero voltage changeover
• Input command from DC/AC logic signal
with push-in connectors; signalling leds
• Cage clamps for power cables
• Load voltage 480V, 600V AC
• Thermal alarm option with led and
alarm output
• Interrupted load option with led and
alarm output
• Internal overvoltage protection
PROFILE POWER CONNECTIONS
Correct management of electrical heating elements for industrial heating applications requires robust, safe, interferencefree, fast and diagnostically capable static contactors.
The range of static contactors
GRS meets all these requirements, with current ratings from 15 to 120
Amperes and voltages up to 600 V
AC, with extremely compact size in every single current level.
It’s necessary use the relay with a propoer heat sink (see section accessory). Accessories like heat sink, fuses and fans areavailable.
GRS COMMAND SIGNAL
CONNECTION
The GRS series can be controlled by
DC and AC logical signals managed through push-in connectors for a faster and easier connection, even without tools.
The ON / OFF status of the static device is always displayed by a green LED on the front panel, for an immediate view of its operation.
Both the line voltage terminal available on the upper part of the device and the load terminal on the lower part are of the “cage” type, which offers the best and safest seal even for cables of different cross-sections, whether mounted with a cable lug or simply stripped.
DIAGNOSTICS AND ALARMS
It is increasingly vital for operators and maintainers to recognize possible anomalies in the system immediately and solve them quickly in order to ensure the efficiency and profitability of machinery and plants. The GRS series offers a series of diagnostic information associated with a physical alarm output with voltage-free or
PNP-type isolated contact.
The thermal alarm is triggered if heat dissipation exceeds a critical threshold, signalling it with a yellow led on the front panel, interrupting the power supply and triggering the alarm output (NO or NC). This function is available as an option for all current levels.
The absence of current on the load (for models with DC control) is indicated by a red led on the front panel and by the activation of the alarm output, as well as by the absence of line voltage.
Alarm output status is memorized: in the presence of a 24 V DC auxiliary power supply, the alarm will be memorized even in the event of an
OFF command.
The alarm is reset when normal operating conditions are restored, or when the 24 V DC auxiliary power supply is switched off and on again.
TECHNICAL DATA
Main features
Category of use: AC51
Rated working voltage
- 480Vac (max. range 24...530Vac)
- 600Vac (max range 24 ... 660Vac)
Rated frequency: 50/60Hz
Non-repetitive voltage:
• 1200Vp for model with rated voltage
480Vac
• 1400Vp for model with rated voltage
600Vac
Switching voltage for zero: < 20V
Activation time: = 1/2 cycle
Deactivation time: = 1/2 cycle
Potential drop at rated current:
= < 1,2Vrms
Power factor = 1
1
2
C ontrol
- AC INPUT (Type “A”):
Control voltage: 20...260 Vac/Vdc
INSTALL FUSE (3A MAX) ON THE
CONTROL INPUT CIRCUIT
Activation voltage: > 15Vac/Vdc
Deactivation voltage: < 6Vac/Vdc
Current draw: <= 8 mAac/dc @ 260
Vac/Vdc input
- DC INPUT (Type “D”):
Max. input: < 9mA @32V
Max. reverse voltage: 36Vdc
Control voltage: 6...32Vdc
Activation voltage: > 5,1Vdc
Deactivation voltage:< 3Vdc a
(t larm ype
o utput
“D” i
o nput ption
V alarm commands: ersion
)
A load or line failure or an overtemperature dV/dt critical with output deactivated:
1000V/µs
GRS 30
Rated device current with appropriate heatsink: 30 A@40°C in continuous service
Non-repetitive overcurrent t=20 ms:
620A
I 2 t for blowout: ≤ 1800A2s dV/dt critical with output deactivated:
1000V/µs
GRS 40
Rated device current with appropriate heatsink: 40 A@40°C in continuous service
Non-repetitive overcurrent t=20 ms:
620A
I 2 t for blowout: ≤ 1800A2s dV/dt critical with output deactivated:
1000 V/µs
THERMAL PROTECTION
(Optional, always present in GRS with current size ≥ 50A):
The temperature of the SCR module is constantly monitored inside the device.
When the maximum temperature threshold of the internal SCR is exceeded, current conduction to the load is interrupted and the yellow thermal protection LED comes on to signal the condition. t
1500A
I 2 t for blowout: ≤ 11250A2s dV/dt critical with output deactivated:
1000V/µS hermal
GRS 15
C haraCteristiCs
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,6 °C/W
GRS 25
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,6 °C/W
- Options 1/2/5: one voltage-free contact
(solid state N.C or N.O.), max. properties:
- N.O. version 30V-150mA conduction resistance: ≤ 1Ω
- N.C. version 30V-50mA conduction resistance: ≤ 15Ω
- Option 3: two normally inactive
(parallelable) PNP digital outputs,
GRS 50
Rated device current with appropriate heatsink: 50 A@ 40°C in continuous service
Non-repetitive overcurrent t=20 ms:
1600A
I 2 t for blowout: ≤ 12800A2s dV/dt critical with output deactivated:
1000V/µs one for load failure and the other for overtemperature (properties: Imax
=150mA Vout= + V DC power supply
-1V).
GRS 60
Rated device current with appropriate heatsink: 60 A@ 40°C in continuous service Maximum interrupted load alarm trip delay < 400ms
Maximum cable length between GRS-H and load for correct load fault diagnostics
< 25m
Non-repetitive overcurrent t=20 ms:
1600A
I 2 t for blowout: ≤ 12800A2s dV/dt critical with output deactivated:
1000V/µs a larm o utput o ption
(t ype
“a” i nput
V ersion
)
The over-temperature alarm commands a voltage-free contact (solid state N.C.), max. properties:
30V-50mA conduction resistance: ≤ 15 Ω
GRS 30
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,65 °C/W
GRS 40
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,6 °C/W
GRS 50
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,35 °C/W
GRS 60
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,35 °C/W o utputs
GRS 15
Rated device current with appropriate heatsink: 15 A@40°C in continuous service
Non-repetitive overcurrent t=20 ms:
620A
I 2 t for blowout: ≤ 1800A2s dV/dt critical with output deactivated:
1000V/µs appropriate heatsink: 25 A@40°C in continuous service
I
Non-repetitive overcurrent t=20 ms:
620A
2 t for blowout: ≤ 1800A2s
GRS 75
Rated device current with appropriate heatsink: 75 A@ 40°C in continuous service
Non-repetitive overcurrent t=20 ms:
1600A
I 2 t for blowout: ≤12800A2s dV/dt critical with output deactivated:
1000V/µs
GRS 90
Rated device current with appropriate heatsink:90A@40°C in continuous service Non-repetitive overcurrent t=20
I ms: 1500A
2 t for blowout: ≤ 11250A2s
GRS 25
Rated device current with dV/dt critical with output deactivated:
1000V/µs
GRS 120 appropriate heatsink: 120A@
Non-repetitive overcurrent t=20 ms:
GRS 75
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,3 °C/W
GRS 90
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,3 °C/W
GRS 120
Junction temp: ≤ 125°C
Rth junction/case: ≤ 0,3 °C/W
C
B
C alCulation o f t he h eatsink ’ s t hermal r esistanCe
Rth = (90°C - T.amb. max) / Pd with Pd
Rated device current with
Max amb. T.= maximum air temperature
40°C in continuous service alCulation y t he s
o oliD f
s
t he tate
p
r ower elay
Single-phase static relay
D issipateD
Pd = 1.4 * IRMS [W] (for GRS)
IRMS = single-phase load current
Use a heatsink with lower than calculated
heat resistance (Rth).
Isolation
Rated isolation voltage input/output:
4000VACrms 1min
Ambient conditions
•
•
•
•
Working temperature
from 0 to 80°C
6600ft above sea level
Pollution level : 2
Storage temperature
-20..+85°C
:
:
Max. relative humidity :
90% non-condensing at 40°C
• Max. installation altitude :
Installation notes
Use the extra-rapid fuse shown in the catalogue according to the connection example supplied.
Applications with static units must also include a safety circuit breaker for disconnecting the power line from the load.
Protect the SSR from overtemperature using an appropriate heatsink (accessory). The heatsink must be appropriately scaled for the ambient temperature and load current (refer to technical documentation).
-Mounting procedure on the heatsink:
The module-heatsink contact surface must have a maximum flatness error of 0.05mm and a maximum roughness of 0.02mm.
The anchorage holes on the heatsink must be threaded and countersunk.
Caution: Spread 1 gram of heatconducting silicone paste (DOW
CORNING 340 HeatSink is recommended) on the dissipative metal surface of the module. The surfaces must be clean, and there must be no impurities in the heatconducting paste.
Tighten the two fixing screws alternately until a torque of 0.60 Nm /
5.3 lb.in for M4 screws and 0.75 Nm
/ 6.6 lb.in for M5 screws is reached.
Wait 30 minutes so that the excess paste can drain away. Tighten the two fixing screws alternately until a torque of 1.2 Nm / 10.6 lb.in for M4 screws and 1.5 Nm / 13.3 lb.in for M5 screws is reached. It is recommended that you check the soundness of the execution by disassembling a sample module to check that there are no air bubbles under the copper plate.
Mount the device vertically (maximum
10° inclination from the vertical axis)
• Vertical distance between a device and the panel wall >100mm
• Horizontal distance between a device and the panel wall at least 20mm
• Vertical distance between one device and another at least 100mm.
• Horizontal distance between one device and another at least 20mm.
Make sure that the cable ducts do not reduce these distances; in this case, mount the units overhanging the panel, so that the air can flow vertically on the heat sink without hindrance.
Limits of use
• Ambient temperature limits.
• Need for air exchange with the outside or an air conditioner to transfer the dissipated power to the outside of the panel.
• Installation limits (distances between devices to ensure dissipation under natural convection conditions)
• Maximum voltage limits and derivative of the transients present on the line, for which the static unit provides internal protection devices (depending on the models).
• Presence of leakage current < 3mA
(max. value with nominal voltage and junction temperature of 125°C).
DIMENSIONS AND MOUNTING MEASUREMENTS
17.5
mm
0,69"
15-75A
Model
Weight [g]
15-75A
108
90-120A
156
Notes:
The dimensions are representative of all models of the series (command “D” type, “A” type and with options)
90-120A
3
4
HEATSINK FIXING
17.5
mm
0,69"
HEAT EXCHANGE
AREA
14.4
mm
0,57"
M4(2x)
Thread
Min. Depth:
9 /0,36"
15-75A
WORKING
AREA
90x17,5
3,54"x0,69"
Min.
HEAT EXCHANGE
AREA
90-120A
WORKING
AREA
90x35
3,54"x1,38"
Min.
M4(2x)
Thread
Min. Depth:
9 /0,36"
DESCRIPTION OF CONNECTIONS
GRS...D-0 GRS...D-1 GRS...D-2
Description of terminal/connector versions with type “D” input
Rif.
1/L1
2/T1
Line Connection
Description
Load Connection
Power terminals (common to all versions) (Overvoltage Category III)
Notes
Signal connector version without options (GRS...D-0) (Overvoltage Category II o III)
3/A2-
4/A1+
GND Control input ON/OFF
+Vdc control input ON/OFF
Control input ground
Range from 6 to 32 Vdc, Imax <9 mA a 32V
Signal connector version with options “1 “ and “2 “ type (GRS…D-1/2) (Overvoltage Category II o III)
3/A2-
4/Us
GND for power supply and control input
ON/OFF
+ Vdc power supply
5/A1+ +Vdc control input ON/OFF
6/A2-
GND Control input ON/OFF
(common to terminal 3/A2-)
7/AL
8/AL
Alarm output:
- Interrupted load
- Line voltage absent
- Overtemperature
Power supply GRS (Range from 6 to 32 V DC, Imax < 14 mA at 32V
Range: ON from 5 to 32Vdc, Imax <0,5 mA a 32V OFF< 1,8V
Additional connection to be used only as GND for the control signal solid state conctat N.O.
Imax =150mA
Vmax = 30 Vdc/25Vac
Z_close < 1 Ω
Z_open > 1 MΩ solid state conctat N.C.
Imax = 50mA
Vmax = 30 Vdc/25Vac
Z_close < 15 Ω
Z_open > 1 MΩ
Note: The connections are also representative of 90-120A models
Note: For terminals and conductors to be used, see the table: “CLAMP AND CONDUCTOR CHARACTERISTICS TABLE” on page 14
5
DESCRIPTION OF CONNECTIONS
GRS...D-3 GRS...D-5
6
Rif.
3/A2-
4/US
Description of terminal/connector versions with type “D” input
Signal connector version with option type “3” (GRS…D-3) (Overvoltage Category II o III)
Description
GND for power supply and control input
ON/OFF
Notes
+ Vdc power supply Power supply GRS (Range from 10 to 32 Vdc, Imax < 14 mA a 32V)
5/A1+
6/TA
7/FA
8/A2-
+Vdc control input ON/OFF
Overtemperature alarm output
Alarm output: interrupted load or line voltage absent
GND Control input ON/OFF
(common to terminal 3/A2-)
Range: ON da 5 a 32Vdc, Imax <0,5 mA a 32V OFF< 1,8V
PNP output normally not active (1)
Imax =150mA Vout: + V DC power supply -1V
PNP output normally not active (1)
Imax =150mA Vout: + V DC power supply -1V
Additional connection to be used only as GND for the control signal
3/A2-
4/Us
5/A1+
6/A2-
Alarm output connector version with type “5” option (GRS...A-5) (Overvoltage Category II o III)
GND for power supply and control input
ON/OFF
+ Vdc power supply
+Vdc control input ON/OFF
GND Control input ON/OFF
(common to terminal 3/A2-)
Power supply GRS
(Range from 6 to 32 V DC, Imax < 14 mA at 32V)
Range: ON from 5 to 32Vdc, Imax <0,5 mA a 32V OFF< 1,8V
Additional connection to be used only as GND for the control signal
7/AL
8/AL
Overtemperature alarm output
Solid state N.C. contact
Imax = 50mA
Vmax = 30 Vdc/25Vac
Z_closed < 15 Ω
Z_open > 1 MΩ
(1): The normally inactive PNP outputs can be connected to each other and obtain a single alarm output
Note: The connections are also representative of 90-120A models
Note : For terminals and conductors to be used, see the table: “CLAMP AND CONDUCTOR CHARACTERISTICS TABLE” on page 14
DESCRIPTION OF CONNECTIONS
GRS...A-0 GRS...A-5
Rif.
1/L1
2/T1
Description of terminal versions with type “A”input
“Power Terminals (common to all versions)” (Overvoltage category III)
Notes
Line Connection
Description
Load Connection
“control connector” (Overvoltage Category II)
3/A2
4/A1
5/AL
6AL
Control input ON/OFF in AC
Vac/Vdc input
(Range 20 to 260Vac/Vdc, Imax < 8 mA) (Overvoltage Category II)
Alarm output connector version with type “5” option (GRS...A-5) (Overvoltage Category II o III)
Overtemperature alarm output
Solid state N.C. contact
Imax = 150 mA
Vmax = 30 Vdc/25Vac
Z_closed < 1 Ω
Z_open > 1 MΩ)
Note: The connections are also representative of 90-120A models
Note : For terminals and conductors to be used, see the table: “CLAMP AND CONDUCTOR CHARACTERISTICS TABLE” on page 14
LED STATUS DESCRIPTION
STATUS
SCR OFF, no alarm
SCR ON, no alarm
SCR ON, Alarm output active
Control signal active, SCR forced off for overtemperature protection
Control signal active, SCR forced off for overtemperature protection, Alarm output active
SCR off, Alarm output active for interrupted load
(alarm is stored, Status only possible with GRS with Type D input and options 1/2/3)
LED Control
(Green)
OFF
ON
ON
OFF
OFF
OFF
Note :
ON LED is always present,
Temp Alarm and Fault Alarm LEDs are optional
LED Temp Alarm
(Yellow)
OFF
OFF
OFF
ON
ON
LED Fault Alarm/Out Alarm
(Red)
OFF
OFF
ON
OFF
ON
OFF ON
7
TYPE OF OPERATION
Logic voltage output command
V
Control input
ON v =
Load voltage
OFF ON
Tc
T
Power supplied = Installed power fot TC / T t t
GRS thermal protection
V
Control input
ON
OFF
ON
OFF green LED
ON
OFF yellow LED yellow LED
V = Load voltage t t t t
Tc
T
Thermal protection activation
Models with thermal alarm and FAN63 option
START START
THERMAL ALARM
Models with thermal alarm
START
Is the heat sink temperature higher than the threshold?
Yes
No
Fan ON
Is the heat sink temperature lower than the threshold?
Yes
No
Fan OFF
Is the heat sink temperature higher than the maximum limit?
Yes
SSR: OFF
LED Temp Alarm: ON
Alarm output: ON
No
Is the heat sink temperature higher than the maximum limit?
Yes
No
SSR: OFF
LED Temp Alarm: ON
Alarm output: ON
Is the heat sink temperature lower than the maximum limit?
Yes
SSR: ON
LED Temp Alarm: OFF
Alarm output: OFF
No
Is the heat sink temperature lower than the maximum limit?
Yes
No
SSR: ON
LED Temp Alarm: OFF
Alarm output: OFF
ALARM LOAD INTERRUPTED
GRS with V DC command (Control type “D” with options)
24V SUPPLY
INPUT CONTROL
LOAD CURRENT
ALARM N.O. OUTPUT
ALARM N.C. OUTPUT
LOAD FAILURE LOAD RESTORED LOAD FAILURE
8
Is the heat sink temperature higher than the threshold?
Yes
No
Fan ON
Is the heat sink temperature lower than the threshold?
Yes
No
Fan OFF
Is the heat sink temperature higher than the maximum limit?
Yes
SSR: OFF
LED Temp Alarm: ON
Alarm output: ON
No
Is the heat sink temperature lower than the maximum limit?
Yes
No
SSR: ON
LED Temp Alarm: OFF
Alarm output: OFF
START
Is the heat sink temperature higher than the maximum limit?
Yes
No
SSR: OFF
LED Temp Alarm: ON
Alarm output: ON
Is the heat sink temperature lower than the maximum limit?
Yes
SSR: ON
LED Temp Alarm: OFF
Alarm output: OFF
No
CONNECTION EXAMPLES
Single-phase connection - GRS with Vdc command input (Type “D” input )
Digital output
Vac output (*)
Fuse
Load
Controller
Phase
Neutral
Ground
Three-phase Wye connection with neutral - GRS with V DC command input (“D” type input )
Digital output
Vac output (*)
Wye connection
Controller
Load
Neutral
Phase L1
Phase L2
Phase L3
Ground
(*) Or relè output with Vac tension
(Use GRS with comand input vac type A)
9
CONNECTION EXAMPLES
Three-phase Triangle or Star connection without neutral on two phases - GRS with Vdc command input (Type “D” input )
Digital output
Vac output (*)
Delta connection
Load
Controller
Wye connection
Phase L1
Phase L2
Phase L3
Ground
(*) Or relay output with V AC output voltage
(Use GRS with Vdc command input Type “A” input )
Connection example for GRS with V DC command with isolated contact alarm output option (Options 1 and 2)
Line Line
10
Alarm output (Option 1/2)
Isolated contact
Max. 30Vdc/25Vac
N.O. : Max 150mA
N.C. : Max 50mA
Alimentazione
24Vdc
(6 a 32 Vdc)
Load
ON / OFF
Control signal
(6 to 32 Vdc)
Alarm output (Option 1/2)
Isolated contact
Max. 30Vdc/25Vac
N.O. : Max 150mA
N.C. : Max 50mA
Supply 24Vdc
(6 to 32 Vdc)
Notes on alarm output connections:
- Parallel connection of many GRS, to be used option 1 n.o.
- Serial connection of many GRS, to be used option 2 n.o.
Load
ON / OFF
Control signal
(6 to 32 Vdc)
CONNECTION EXAMPLES
Connection example for GRS with V DC command with PNP alarm output option (Option 3)
Line Line
Alarm output (Opz. 3)
PNP contact
Max. 150mA
Supply 24Vdc
(6 to 32 Vdc)
Load
ON / OFF
Control signal
(6 to 32 Vdc)
Alarm output (Opz. 3)
PNP contact
Max. 150mA
Supply
24Vdc
(6 to 32 Vdc)
Notes on alarm output connections:
Parallel connection of many GRS, with output option 3, normally closed.
Connection example for GRS with V DC control with thermal alarm option (Option 5)
Line Line
Load
ON / OFF
Control signal
(6 to 32 Vdc)
Alarm output (Option 5)
Isolated contact
Max. 30Vdc/25Vac
N.C. : Max 50mA
Supply 24Vdc
(6 to 32 Vdc)
Load
ON / OFF
Control signal
(6 to 32 Vdc)
Alarm output (Option 5)
Isolated contact
Max. 30Vdc/25Vac
N.C. : Max 50mA
Supply 24Vdc
(6 to 32 Vdc)
Notes on alarm output connections:
Serial connection of many GRS, with output option 5, normally closed.
Load
ON / OFF
Control signal
(6 to 32 Vdc)
11
12
CONNECTION EXAMPLES
Connection example for GRS with V AC control with thermal alarm option (Option 5)
Line
Line
Alarm output (Option 5)
Isolated contact
Max. 30Vdc/25Vac
150mA
Fuse
(3A max)
ON / OFF
Signal
Vac control
(20 to 260 Vac)
Load
Notes on alarm output connections:
Serial connection of many GRS, with output option 5, normally closed.
Alarm output (Option 5)
Isolated contact
Max. 30Vdc/25Vac
150mA
Fuse
(3A max)
ON / OFF
Signal
Vac control
(20 to 260 Vac)
Load
TABLE OF TERMINALS AND CONDUCTORS
Size
CONTROL/SIGNAL TERMINALS
Type of connection
Conductor section /
Stripping length
15A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
25A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
30A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
40A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
50A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
60A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
75A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
90A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
120A
Rigid/flexible/cable lug conductor cross section
1 x 0.2-1.5 mm2 / 2 x 0.1-0.75 mm2
1 x 24-16 AWG / 2 x 27-19 AWG
Stripping length 8 mm
NOTE: Use 60/75°C copper (CU), solid or multi-stranded conductors
Contact area
(WxD) screw type
9,2 x 8 mm
M5
9,2 x 8 mm
M5
9,2 x 8 mm
M5
9,2 x 8 mm
M5
9,2 x 8 mm
M5
9,2 x 8 mm
M5
9,2 x 8 mm
M5
10,5 mm x 10,7 mm
M5
9,2 x 8 mm
M5
POWER TERMINALS
Type of connection
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Rigid/flexible/ferrule conductor cross section
Stripping length
Conductor section /
Tightening torque /
Stripping length
1 x 2.5 mm2 / 2 x 1.5 mm2
1 x 14 AWG / 2 x 17 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
1 x 6 mm2 / 2 x 4 mm2
1 x 10 AWG / 2 x 12 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
1 x 6 mm2 / 2 x 4 mm2
1 x 10 AWG / 2 x 12 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
1 x 10 mm2 / 2 x 6 mm2
1 x 8 AWG / 2 x 10 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
1 x 16 mm2 / 2 x 10 mm2
1 x 6 AWG / 2 x 8 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
1 x 25 mm2 / 2 x 16 mm2
1 x 4 AWG / 2 x 6 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
1 x 25 mm2 / 2 x 16 mm2
1 x 3 AWG / 2 x 6 AWG
2,5-3 Nm
(22-26,6lb-in)
11 mm
35 mm2
2 AWG
2,5-3 Nm
(22-26,6lb-in)
13 mm
1 x 50 mm2 / 2 x 25 mm2
1 x 1/0 AWG / 2 x 3 AWG
2,5-3 Nm
(22-26,6lb-in)
13 mm
NOTE: Use 75°C copper (CU), multi-stranded conductors
Notes:
For Canadian end-use applications only, an R/C VZCA/7 (or CSA-approved) surge protector is required to be installed in the end-use as shown below:
- Maximum clamping voltage 800V, for the control input of Type “D” devices.
- Maximum clamping voltage 2500V, for control input of “A” type devices.
- Maximum clamping voltage 800V, for the auxiliary output of type “D” and “A” devices.
13
14
Model
GRS 15
GRS 25
GRS 30
GRS 40
GRS 50
GRS 60
GRS 75
GRS 90
GRS 120
SCCR COORDINATION FUSES
"Short circuit current [Arms]"
100.000
100.000
100.000
100.000
100.000
100.000
100.000
100.000
100.000
"Max fuse size [A]"
40
40
40
40
80
80
80
125
125
The fuses on the above table are representative of all the Bussmann DFJ fuses with lower current ratings
The devices protected with the fuses reported above, still be functional after the short circuit
"Bussmann
Model Number"
DFJ-40
DFJ-40
DFJ-40
DFJ-40
DFJ-80
DFJ-80
DFJ-80
DFJ-125
DFJ-125
"Max Voltage
[VAC]"
600
600
600
600
600
600
600
600
600
Short circuit protection:The product variants listed in the table “SCCR COORDINATION FUSES” are “Suitable For Use On A Circuit Capable Of
Delivering Not
More Than 100,000 A rms Symmetrical Amperes, 600 Volts Maximum when Protected by fuses.
Attention: the opening of the branch-circuit protective device may be an indication tha a fault has been interrupted. To reduce the risk of firee or electric shocks, current-carryng parts and other components of the device should be examinated and replaced if damaged. If burnout of the device occurs, the complete device must be replaced or equivalent.
EXTRARAPID FUSES
Model
GRS 15, GRS 15/48, GRS 15/60
GRS 25, GRS 25/48, GRS 25/60
GRS 30, GRS 30/48, GRS 30/60
GRS 40, GRS 40/48, GRS 40/60
GRS 50, GRS 50/48, GRS 50/60
GRS 60, GRS 60/48, GRS 60/60, GRS 75, GRS 75/48, GRS 75/60
GRS 90, GRS 90/48, GRS 90/60
GRS 120, GRS 120/48, GRS 120/60
HEATSINKS
Model
GRS 15/25
GRS 30
GRS 40/50
GRS 60/75/90/120
FANS (for 90A/120A models only)
Model
90A
120A
90A
120A
FAN60
FAN61
FAN62
Code
363484
363011
363485
363003
363037
Heatsink dimension [mm]
90x50x17,5
90x85x17,5
90x85x35
90x113x70
Fuse manufacturer
Bussmann Div Cooper (UK) Ltd
Bussmann Div Cooper (UK) Ltd
Bussmann Div Cooper (UK) Ltd
Bussmann Div Cooper (UK) Ltd
Bussmann Div Cooper (UK) Ltd
Bussmann Div Cooper (UK) Ltd
Bussmann Div Cooper (UK) Ltd
Bussmann International Inc. USA
Heatsink rth [°C/W]
3,52
2,48
1,45
0,867
Type
230 Vac 60mm x 60mm x 30mm for 90A models
230Vac 80mm x 80mm x 38 mm for 120A models
115Vac 60mm x 60mm x 30 mm for 90A models
115Vac 80mm x 80mm x 38 mm for 120A models
24 Vdc 60mm x 60mm x 25mm
Fuse Model size
FWC16A10F 10x38
FWC25A10F 10x38
FWP40A14F 14x51
FWP40A14F 14x51
FWP63A22F 22x58
FWP80A22F 22x58
FWP100A22F 22x58
170M1418 000-TN/80
ORDER CODE
GRS -
Rated current
15Aac
25Aac
30Aac
40Aac
50Aac
60Aac
75Aac
90Aac
120Aac
Rated voltage
480Vac
600Vac
50
60
75
90
120
15
25
30
40
V
48
60
0 0 0
0
0
Future developments
None
Control terminal
Push In
0
1
2
3
5
OPTIONS
None
Thermal alarm and load interrupted
Insulated contact ( NO ) (1)
Thermal alarm and load interrupted
Insulated contact ( NC ) (1)
Thermal alarm and load interrupted
Digital output PNP ( NO ) (1)
Thermal alarm
Insulated contact ( NC )
Input type
6 ... 32 Vdc
20 ... 260 Vac / Vdc
D
A
Notes:
(1) Not available for Type A input versions
15
WARNINGS
WARNING : this symbol indicates danger .
Read the following warnings before installing, connecting or using the device:
• follow instructions precisely when connecting the device.
• always use cables that are suitable for the voltage and current levels indicated in the technical specifications.
• In applications with risk of damage to persons, machines or materials, you MUST install auxiliary alarm devices.
It is advisable to verify frequently that the alarm device is functional even during the normal operation of the equipment.
• DO NOT operate the device in rooms with dangerous (inflammable or explosive) atmosphere.
• During continuous operation, the heat sink can reach up to 100°C, and stays at a high temperature even after the device is turned off due to thermal inertia; therefore, DO NOT touch it and avoid contact with electrical wires.
• do not work on the power part without first disconnecting electrical power to the panel.
• do not remove the cover when the device is powered!
Installation:
• correctly ground the device using the specific terminal.
• power supply lines must be separated from device input and output lines; always check that the supply voltage matches the voltage indicated on the device label.
• avoid dust, humidity, corrosive gases and heat sources.
• respect the installation distances between one device and another (to allow for dissipation of generated heat).
• to keep air in movement, we advise you to install a fan near the GRS group in the electrical panel containing the GRSs.
Maintenance: at regular intervals, check operation of the cooling fans and clean all air ventilation filters.
• repairs must be done out only by trained and specialized personnel. Cut power to the device before accessing internal parts.
• do not clean the box with solvents derived from hydrocarbons (trichloroethylene, gasoline, etc.). Using such solvents will compromise the device’s mechanical reliability. Use a clean cloth moistened with ethyl alcohol or water to clean external parts in plastic.
Service: GEFRAN has a service department. The warranty excludes defects caused by any use not conforming to these instructions.
GEFRAN spa reserves the right to make aesthetic or functional changes at any time and without notice.
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This device conforms to European Union Directive 2014/30/EU and 2014/35/EU as amended with reference to generic standards: EN 61000-6-2 (immunity in industrial environment) EN 61000-6-4 (emission in industrial environment) -
EN 61010-1 (safety regulations).
Conformity TC RU C-IT.AЛ32.B.00422
Conformity UL508 - File: E243386
SCCR RMS SYM
100KA / 600V
100 KA when protected by proper fuse
GEFRAN spa via Sebina, 74 - 25050 Provaglio d’Iseo (BS)
Tel. 03098881 - fax 0309839063 - Internet: http://www.gefran.it
DTS_GRS_06-2021_ENG
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