GEFRAN GTD 25/40A POWER SOLID STATE RELAYS
GEFRAN GTD 25/40A POWER SOLID STATE RELAYS
WITH LOGIC CONTROL AND DIAGNOSTICS
Main features
• AC power solid state relays with logic
signal control
• Switching at voltage zero crossing
• Built-in heatsink
• Rated current: 25Arms, 40Arms
• Non-repetitive voltage: 1200 Vp
• Rated voltage: up to 530VCArms
• Input control range: 5…30 Vdc
• Optical isolation: 4000Vrms
(input/output)
• Built-in HB diagnostics (partial heater
break, junction in short circuit)
• Overheat protection (optional)
• 2-color control signal LED in
input/alarm state
• On-board MOV (varistor)
• DIN rail or panel mounting (optional)
Main applications
• Plastics extrusion lines
and injection moulding
machines
• Packing and packaging
machines
• Polymerization plant for
synthetic fibre production
• Chemical and
pharmaceutical industries
• Industrial electric ovens
• Food processing plants
Order-no.: F28.717
Manufacturer: GEFRAN
SAGATRON-no.: F28.717
WITH LOGIC CONTROL AND DIAGNOSTICS
Main features
• AC power solid state relays with logic
signal control
• Switching at voltage zero crossing
• Built-in heatsink
• Rated current: 25Arms, 40Arms
• Non-repetitive voltage: 1200 Vp
• Rated voltage: up to 530VCArms
• Input control range: 5…30 Vdc
• Optical isolation: 4000Vrms
(input/output)
• Built-in HB diagnostics (partial heater
break, junction in short circuit)
• Overheat protection (optional)
• 2-color control signal LED in
input/alarm state
• On-board MOV (varistor)
• DIN rail or panel mounting (optional)
Main applications
• Plastics extrusion lines
and injection moulding
machines
• Packing and packaging
machines
• Polymerization plant for
synthetic fibre production
• Chemical and
pharmaceutical industries
• Industrial electric ovens
• Food processing plants
Order-no.: F28.717
Manufacturer: GEFRAN
SAGATRON-no.: F28.717
General features
Category of use: AC1
Nominal voltage:
480Vac (max. range 48...530Vac)
Nominal frequency: 50/60Hz
Non-repetitive voltage: 1200Vac
Zero switching voltage: < 20V
Activation time: =1/2 cycle
Deactivation time: =1/2 cycle
Voltage drop at nominal current:
= 1,4Vrms
Power factor = 1
Control inputs
Max. input: < 5mA@30V
Max. reverse voltage: 36Vdc
Control voltage: 5...30Vdc
Activation voltage: > 4,25Vdc
Deactivation voltage: < 3Vdc
Power supply
Vs = 20...30Vdc ±10%
Input 30mA at 30Vdc
Outputs
GTD 25
Nominal current: 25A@40°C in continuous
service
Non-repetitive overcurrent t=20ms: 400A
I2t for blowout: 645A2s
dV/dt critical with output deactivated:
1000V/μs
GTD 40
Nominal current: 40A@40°C in continuous
service
Non-repetitive overcurrent t=20ms: 600A
I2t for blowout: 1010A2s
dV/dt critical with output deactivated:
1000V/μs
DIAGNOSTICS
Heater break Alarm (Hb)
Checks load by measuring current inside
the device.
Current full scale is selectable: 5, 10, 15,
20, 25, 30, 35, 40A.
The alarm setpoint can be set at 10
levels within the selected scale.
Overtemperature alarm (optional)
Provides protection against junction
overtemperature in “or” with the Hb
alarm.
Alarm output
The alarm output is PNP type (not
protected against short circuit)
(output voltage = Vs - 0.7Vdc,
Rout = 82Ω, Iout max. = 20mA)
The alarm is signaled by a yellow LED.
Isolation
Rated isolation voltage for power
control/output: 4000VACrms
Ambient conditions
• Working temperature:
0 to 80°C (see the dissipation curves)
• Max. relative humidity: 50%...40°C
• Max. installation altitude:
2000m asl
• Pollution level: 3
• Storage temperature: -20...85°C
Category of use: AC1
Nominal voltage:
480Vac (max. range 48...530Vac)
Nominal frequency: 50/60Hz
Non-repetitive voltage: 1200Vac
Zero switching voltage: < 20V
Activation time: =1/2 cycle
Deactivation time: =1/2 cycle
Voltage drop at nominal current:
= 1,4Vrms
Power factor = 1
Control inputs
Max. input: < 5mA@30V
Max. reverse voltage: 36Vdc
Control voltage: 5...30Vdc
Activation voltage: > 4,25Vdc
Deactivation voltage: < 3Vdc
Power supply
Vs = 20...30Vdc ±10%
Input 30mA at 30Vdc
Outputs
GTD 25
Nominal current: 25A@40°C in continuous
service
Non-repetitive overcurrent t=20ms: 400A
I2t for blowout: 645A2s
dV/dt critical with output deactivated:
1000V/μs
GTD 40
Nominal current: 40A@40°C in continuous
service
Non-repetitive overcurrent t=20ms: 600A
I2t for blowout: 1010A2s
dV/dt critical with output deactivated:
1000V/μs
DIAGNOSTICS
Heater break Alarm (Hb)
Checks load by measuring current inside
the device.
Current full scale is selectable: 5, 10, 15,
20, 25, 30, 35, 40A.
The alarm setpoint can be set at 10
levels within the selected scale.
Overtemperature alarm (optional)
Provides protection against junction
overtemperature in “or” with the Hb
alarm.
Alarm output
The alarm output is PNP type (not
protected against short circuit)
(output voltage = Vs - 0.7Vdc,
Rout = 82Ω, Iout max. = 20mA)
The alarm is signaled by a yellow LED.
Isolation
Rated isolation voltage for power
control/output: 4000VACrms
Ambient conditions
• Working temperature:
0 to 80°C (see the dissipation curves)
• Max. relative humidity: 50%...40°C
• Max. installation altitude:
2000m asl
• Pollution level: 3
• Storage temperature: -20...85°C
FACEPLATE DESCRIPTION
DIMENSIONS AND CUT-OUT TEMPLATE DIMENSIONS
DISSIPATION CURVES
TABLE FOR TERMINAL CHOICE OF POWER TERMINAL BOARD
| Electricity | Operating voltage | Type of control | Control | Special function | Type | Code |
| 25 A | To 480 Vac | Logic | 5-30 Vdc | Load failure | GTD-25/480-0 (480V/25A) | F28.717 |
| 25 A | To 480 Vac | Logic | 5-30 Vdc | Load failure + Overtemperature Thyristor | GTD-25/480-1 (480V/25A) | F28.653 |
| 40 A | To 480 Vac | Logic | 5-30 Vdc | Load failure | GTD-40/480-0 (480V/40A) | F28.718 |
| 40 A | To 480 Vac | Logic | 5-30 Vdc | Load failure + Overtemperature Thyristor | GTD-40/480-1 (480V/40A) | F28.554 |
