GEFRAN GS 15/25/40/50/60/75/90/120 SOLID STATE RELAYS WITH LOGIC CONTROL
Main features
• Alternating current solid state relay
• Zero crossing switching
• Control input from VDC/VAC logic
signal
• Copper/semiconductor coupling
technology
• 10, 15, 20, 25, 40, 50, 60, 90, and
120 Arms nominal current
• Non-repetitive voltage: up to
1200Vp
• Nominal Voltage: up to 600Vac
• Integrated SCR thermal protection
with LED signal (only for models
with > 40A current)
• 4000 Vrms optoinsulation
(input-output)
• LED, drive input signal indicator
• MOV (varistors)
Main applications
• Plastics extrusion lines
and injection moulding
machines
• Packing and packaging
machines
• Polymerization plant for
synthetic fibre production
• Rubber moulding
machinery
• Driers for ceramics and
components for the
building industries
• Chemical and
pharmaceutical industries
• Industrial electric furnaces
• Food processing plants
Order-no.: F22.273
Manufacturer: GEFRAN
SAGATRON-no.: F22.273
• Alternating current solid state relay
• Zero crossing switching
• Control input from VDC/VAC logic
signal
• Copper/semiconductor coupling
technology
• 10, 15, 20, 25, 40, 50, 60, 90, and
120 Arms nominal current
• Non-repetitive voltage: up to
1200Vp
• Nominal Voltage: up to 600Vac
• Integrated SCR thermal protection
with LED signal (only for models
with > 40A current)
• 4000 Vrms optoinsulation
(input-output)
• LED, drive input signal indicator
• MOV (varistors)
Main applications
• Plastics extrusion lines
and injection moulding
machines
• Packing and packaging
machines
• Polymerization plant for
synthetic fibre production
• Rubber moulding
machinery
• Driers for ceramics and
components for the
building industries
• Chemical and
pharmaceutical industries
• Industrial electric furnaces
• Food processing plants
Order-no.: F22.273
Manufacturer: GEFRAN
SAGATRON-no.: F22.273
General features
Category of use: AC1
Nominal voltage
- 230Vac (max. range 24...280Vac)
- 480Vac (max. range 24...530Vac)
- 600Vac (max range 24 ... 660Vac)
Nominal frequency: 50/60Hz
Non-repetitive voltage:
• 500Vp for model with rated voltage
230Vac
• for model with rated voltage 480Vac
• 1400Vp for models with nominal
voltage of 600VAC
Switching voltage for zero: < 20V
Activation time: ≤ 1/2 cycle
Deactivation time: ≤ 1/2 cycle
Potential drop at rated current: ≤ 1.4V
Power factor = 1
Control inputs
DC INPUT (Type “D”):
Max. input: < 10mA@32V
Max. reverse voltage: 36Vdc
AC INPUT (Type “A”):
Control voltage: 20...260VAC/VDC
Activation voltage: > 15VAC /VDC
Deactivation voltage: < 6VAC/VDC
Current draw:
<= 8 mAac/dc@260Vac/Vdc
Alarm output option
Interruption of the load or of the line
commands a contact (solid state switch
or a PNP digital output (max 30V, 150mA
resistance <15 ohm).
Maximum delay in tripping of load interrupt
alarm < 400ms
Maximum length of wires between GS
and load for correct operation of load
diagnostics < 25m
Outputs
GS 15
Nominal currents of the device with
opportune heatsink in continuous
work:15A
Non-repetitive overcurren t=20 ms: 400A
I2t for blowout: ≤450A2s
dV/dt critical with output deactivated:
1000V/μs
GS 25
Nominal currents of the device with
opportune heatsink in continuous work:
25A
Non-repetitive overcurrent t=20 ms: 400A
I2t for blowout: ≤645A2s
dV/dt critical with output deactivated:
1000V/μs
GS 40
Nominal currents of the device with
opportune heatsink in continuous work:
40A
Non-repetitive overcurrent t=20 ms: 600A
I2t for blowout: ≤1010A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 50
Nominal currents of the device with opportune
heatsink in continuous work: 50A
Non-repetitive overcurrent t=20 ms:1150A
I2t for blowout: ≤6600A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 60
Nominal currents of the device with opportune
heatsink in continuous work: 60A
Non-repetitive overcurrent t=20 ms:1150A
I2t for blowout: ≤6600A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 75
Nominal currents of the device with opportune
heatsink in continuous work: 75A
Non-repetitive overcurrent t=20 ms:1300A
I2t for blowout: ≤8000A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 90
Nominal currents of the device with opportune
heatsink in continuous work: 90A
Non-repetitive overcurrent t=20 ms:1500A
I2t for blowout: ≤11200A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 120
Nominal currents of the device with opportune
heatsink in continuous work: 120A
Non-repetitive overcurrent t=20 ms:1500A
I2t for blowout: ≤11200A2s
dV/dt critical with output deactivated:
1000V/μS
Thermal protection
(only on GS models with > 40A current):
The SCR module’s temperature is constantly
monitored inside the device. When the
maximum temperature threshold (T=110°C)
is exceeded, current flow to the load is interrupted
and the condition is signaled by lighting
of the yellow thermal protection LED.
Isolation
Rated isolation voltage input/output :
4000VAC rms SCR version
Thermal features
GS 15
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 2.0 K/W
Rth junction/ambient: ≤ 12.5 K/W
GS 25
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 1.25 K/W
Rth junction/ambient: ≤ 12 K/W
GS 40
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.65 K/W
Rth junction/ambient: ≤ 12 K/W
GS 50
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.35 K/W
Rth junction/ambient: ≤ 12 K/W
GS 60
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.35 K/W
Rth junction/ambient: ≤ 12 K/W
GS 75
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.3 K/W
Rth junction/ambient: ≤ 12 K/W
GS 90
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.3 K/W
Rth junction/ambient: ≤ 12 K/W
GS 120
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.25 K/W
Rth junction/ambient: ≤ 12 K/W
Solid State Relay Dissipated Power
Calculation
Single-phase relay
Pd = 1.4 * IRMS [W] (for GS)
IRMS = single-phase load current
Heatsink Thermal Resistance Calculation
Rth = (90°C - max amb. T) / Pd
where Pd = dissipated power
Max. amb. T = max air temperature inside
the electrical cabinet.
Use a heatsink with thermal resistance
inferior to the calculated one (Rth).
Ambient conditions
• Working temperature: 0 to 80°C.
• Max. relative humidity: 50% to 40°C
• Max. installation altitude:
2000m asl
• Pollution level 2
• Storage temperature: -20..85°C
Installation notes
- The heat sink must be grounded.
- The device must be protected by an
appropriate high-speed fuse (accessory).
- Applications with solid state power units
must also include an automatic safety
switch to cut out the load power line.
- Protect the solid state relay by using an
appropriate heat sink (accessory).
The heat sink must be sized according to
room temperature and load current (see
the technical documentation).
- Procedure for mounting on heat sink:
The module-heat sink contact surface
must have a maximum planarity error
of 0.05mm. and maximum roughness of
0.02mm. The fastening holes on the heat
sink must be threaded and countersunk.
Attention: spread 1 gram of thermoconductive
silicone (we recommend DOW
CORNING 340 HeatSink) on the dissipative
metal surface of the module.
The surfaces must be clean and there
must be no impurities in the thermoconductive
paste.
Alternately tighten the two fastening
screws until reaching a torque of 0.60 Nm
for the M4 screws and 0.75 Nm for the
M5 screws.
Wait 30 minutes for any excess paste to
drain.
Alternately tighten the two fastening
screws until reaching a torque of 1.2 Nm
for the M4 screws and 1.5 Nm for the M5
screws.
We advise you to randomly check for proper
installation by dismantling the module
to make sure there are no air bubbles
under the copper plate.
Limits of use
• dissipation of thermal power of device
with restrictions on temperature of installation
site.
• requires exchange with outside air or
an air conditioner to transfer dissipated
power outside the panel.
• installation restrictions (distances between
devices to guarantee dissipation by
natural convection).
• max. voltage limits and derivative of transients
in line, for which the solid state unit
has internal protection devices (depending
on model).
• presence of dispersion current < 3mA
for SCR version GS (max. value with
rated voltage and junction temperature of
125°C).
Category of use: AC1
Nominal voltage
- 230Vac (max. range 24...280Vac)
- 480Vac (max. range 24...530Vac)
- 600Vac (max range 24 ... 660Vac)
Nominal frequency: 50/60Hz
Non-repetitive voltage:
• 500Vp for model with rated voltage
230Vac
• for model with rated voltage 480Vac
• 1400Vp for models with nominal
voltage of 600VAC
Switching voltage for zero: < 20V
Activation time: ≤ 1/2 cycle
Deactivation time: ≤ 1/2 cycle
Potential drop at rated current: ≤ 1.4V
Power factor = 1
Control inputs
DC INPUT (Type “D”):
Max. input: < 10mA@32V
Max. reverse voltage: 36Vdc
AC INPUT (Type “A”):
Control voltage: 20...260VAC/VDC
Activation voltage: > 15VAC /VDC
Deactivation voltage: < 6VAC/VDC
Current draw:
<= 8 mAac/dc@260Vac/Vdc
Alarm output option
Interruption of the load or of the line
commands a contact (solid state switch
or a PNP digital output (max 30V, 150mA
resistance <15 ohm).
Maximum delay in tripping of load interrupt
alarm < 400ms
Maximum length of wires between GS
and load for correct operation of load
diagnostics < 25m
Outputs
GS 15
Nominal currents of the device with
opportune heatsink in continuous
work:15A
Non-repetitive overcurren t=20 ms: 400A
I2t for blowout: ≤450A2s
dV/dt critical with output deactivated:
1000V/μs
GS 25
Nominal currents of the device with
opportune heatsink in continuous work:
25A
Non-repetitive overcurrent t=20 ms: 400A
I2t for blowout: ≤645A2s
dV/dt critical with output deactivated:
1000V/μs
GS 40
Nominal currents of the device with
opportune heatsink in continuous work:
40A
Non-repetitive overcurrent t=20 ms: 600A
I2t for blowout: ≤1010A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 50
Nominal currents of the device with opportune
heatsink in continuous work: 50A
Non-repetitive overcurrent t=20 ms:1150A
I2t for blowout: ≤6600A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 60
Nominal currents of the device with opportune
heatsink in continuous work: 60A
Non-repetitive overcurrent t=20 ms:1150A
I2t for blowout: ≤6600A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 75
Nominal currents of the device with opportune
heatsink in continuous work: 75A
Non-repetitive overcurrent t=20 ms:1300A
I2t for blowout: ≤8000A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 90
Nominal currents of the device with opportune
heatsink in continuous work: 90A
Non-repetitive overcurrent t=20 ms:1500A
I2t for blowout: ≤11200A2s
dV/dt critical with output deactivated:
1000 V/μs
GS 120
Nominal currents of the device with opportune
heatsink in continuous work: 120A
Non-repetitive overcurrent t=20 ms:1500A
I2t for blowout: ≤11200A2s
dV/dt critical with output deactivated:
1000V/μS
Thermal protection
(only on GS models with > 40A current):
The SCR module’s temperature is constantly
monitored inside the device. When the
maximum temperature threshold (T=110°C)
is exceeded, current flow to the load is interrupted
and the condition is signaled by lighting
of the yellow thermal protection LED.
Isolation
Rated isolation voltage input/output :
4000VAC rms SCR version
Thermal features
GS 15
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 2.0 K/W
Rth junction/ambient: ≤ 12.5 K/W
GS 25
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 1.25 K/W
Rth junction/ambient: ≤ 12 K/W
GS 40
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.65 K/W
Rth junction/ambient: ≤ 12 K/W
GS 50
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.35 K/W
Rth junction/ambient: ≤ 12 K/W
GS 60
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.35 K/W
Rth junction/ambient: ≤ 12 K/W
GS 75
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.3 K/W
Rth junction/ambient: ≤ 12 K/W
GS 90
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.3 K/W
Rth junction/ambient: ≤ 12 K/W
GS 120
Junction temperature: ≤ 125°C
Rth junction/case: ≤ 0.25 K/W
Rth junction/ambient: ≤ 12 K/W
Solid State Relay Dissipated Power
Calculation
Single-phase relay
Pd = 1.4 * IRMS [W] (for GS)
IRMS = single-phase load current
Heatsink Thermal Resistance Calculation
Rth = (90°C - max amb. T) / Pd
where Pd = dissipated power
Max. amb. T = max air temperature inside
the electrical cabinet.
Use a heatsink with thermal resistance
inferior to the calculated one (Rth).
Ambient conditions
• Working temperature: 0 to 80°C.
• Max. relative humidity: 50% to 40°C
• Max. installation altitude:
2000m asl
• Pollution level 2
• Storage temperature: -20..85°C
Installation notes
- The heat sink must be grounded.
- The device must be protected by an
appropriate high-speed fuse (accessory).
- Applications with solid state power units
must also include an automatic safety
switch to cut out the load power line.
- Protect the solid state relay by using an
appropriate heat sink (accessory).
The heat sink must be sized according to
room temperature and load current (see
the technical documentation).
- Procedure for mounting on heat sink:
The module-heat sink contact surface
must have a maximum planarity error
of 0.05mm. and maximum roughness of
0.02mm. The fastening holes on the heat
sink must be threaded and countersunk.
Attention: spread 1 gram of thermoconductive
silicone (we recommend DOW
CORNING 340 HeatSink) on the dissipative
metal surface of the module.
The surfaces must be clean and there
must be no impurities in the thermoconductive
paste.
Alternately tighten the two fastening
screws until reaching a torque of 0.60 Nm
for the M4 screws and 0.75 Nm for the
M5 screws.
Wait 30 minutes for any excess paste to
drain.
Alternately tighten the two fastening
screws until reaching a torque of 1.2 Nm
for the M4 screws and 1.5 Nm for the M5
screws.
We advise you to randomly check for proper
installation by dismantling the module
to make sure there are no air bubbles
under the copper plate.
Limits of use
• dissipation of thermal power of device
with restrictions on temperature of installation
site.
• requires exchange with outside air or
an air conditioner to transfer dissipated
power outside the panel.
• installation restrictions (distances between
devices to guarantee dissipation by
natural convection).
• max. voltage limits and derivative of transients
in line, for which the solid state unit
has internal protection devices (depending
on model).
• presence of dispersion current < 3mA
for SCR version GS (max. value with
rated voltage and junction temperature of
125°C).
Connection Examples
Properties of Terminals and conductors
| Electricity | Betriebsspannung | Type of Control | Control | Type | Code |
| 15 A | To 230 Vac | Logik | 5-32 Vdc | GS-15/230-0 (230V/15A SCR) | F22.273 |
| 15 A | To 480 Vac | Logik | 5-32 Vdc | GS-15/480-0 (480V/15A SCR) | F22.277 |
| 25 A | To 230 Vac | Logik | 5-32 Vdc | GS-25/230-0 (230V/25A SCR) | F712 |
| 25 A | To 480 Vac | Logik | 5-32 Vdc | GS-25/480-0 (480V/25A SCR) | F715 |
| 40 A | To 230 Vac | Logik | 5-32 Vdc | GS-40/230-0 (230V/40A SCR) | F22.274 |
| 40 A | To 480 Vac | Logik | 5-32 Vdc | GS-40/480-0 (480V/40A SCR) | F22.278 |
| 50 A | To 230 Vac | Logik | 5-32 Vdc | GS-50/230-0 (230V/50A SCR) | F713 |
| 50 A | To 480 Vac | Logik | 5-32 Vdc | GS-50/480-0 (480V/50A SCR) | F716 |
| 60 A | To 230 Vac | Logik | 5-32 Vdc | GS-60/230-0 (230V/60A SCR) | F22.275 |
| 60 A | To 480 Vac | Logik | 5-32 Vdc | GS-60/480-0 (480V/60A SCR) | F22.279 |
| 75 A | To 230 Vac | Logik | 5-32 Vdc | GS-75/230-0 (230V/75A SCR) | F22.918 |
| 75 A | To 480 Vac | Logik | 5-32 Vdc | GS-75/480-0 (480V/75A SCR) | F22.919 |
| 90 A | To 230 Vac | Logik | 5-32 Vdc | GS-90/230-0 (230V/90A SCR) | F714 |
| 90 A | To 480 Vac | Logik | 5-32 Vdc | GS-90/480-0 (480V/90A SCR) | F717 |
| 120 A | To 230 Vac | Logik | 5-32 Vdc | GS-120/230-0 (230V/120A SCR) | F22.276 |
| 120 A | To 480 Vac | Logik | 5-32 Vdc | GS-120/480-0 (480V/120A SCR) | F22.280 |
