Gefran solid-state relays are engineered to reliably manage electrical loads even in harsh and demanding environments. Their advanced thermal design ensures superior heat dissipation and long-lasting performance, making them ideal for heating systems and other high-duty applications.
Unlike general-purpose SSRs, Gefran’s design is backed by calculated thermal engineering rather than estimation, resulting in improved reliability, longer service life, and reduced maintenance requirements. This ensures stable operation even under elevated ambient temperatures or continuous cycling.
For less demanding environments, we also supply block-type SSRs available in a range of amperage ratings, offering cost-effective performance while maintaining dependable operation.
GRS-H
- Description: Single-phase solid-state relay, heatsink included
- Rated current values (A): 15,25,30,40,50,60,75,90,120
- Rated Voltages (Vac): 230, 600
- Input: 6-32Vdc, 20-260Vac/Vdc
- Trigger: Zero crossing
- Options: Disconnected load alarm, overheating alarm
GRS
- Description: Single-phase solid-state relay, heatsink excluded
- Rated current values (A): 15,25,30,40,50,60,75,90,120
- Rated Voltages (Vac): 230, 600
- Input: 6-32Vdc, 20-260Vac/Vdc
- Trigger: Zero crossing
- Options: Disconnected load alarm, overheating alarm
GRP-H
- Description: Single-phase solid-state relay, heatsink included
- Rated current values (A): 15,25,30,40,50,60,75,90,120
- Rated Voltages (Vac): 230, 600
- Input: 6-32Vdc, 0-10V, 4-20mA, potentiometer
- Trigger: Zero crossing, burst-fire, half-single cycle, phase angle
- Options: Disconnected load alarm, overheating alarm, soft-start, short circuit alarm
GRP
- Description: Single-phase solid-state relay, heatsink excluded
- Rated current values (A): 15,25,30,40,50,60,75,90,120
- Rated Voltages (Vac): 230, 600
- Input: 6-32Vdc, 0-10V, 4-20mA, potentiometer
- Trigger: Zero crossing, burst-fire, half-single cycle, phase angle
- Options: Disconnected load alarm, overheating alarm, soft-start, short circuit alarm
GRZ-H
- Description: Three-phase solid-state relay, heatsink included
- Rated current values (A): 10,20,25,30,40,65
- Rated Voltages (Vac): 400, 480, 600
- Input: 6-32Vdc, 20-260Vac/Vdc
- Trigger: Zero crossing
- Options: Disconnected load alarm, overheating alarm
Block Type
- Description: Single-phase solid-state relay, heatsink excluded
- Rated current values (A): 25, 40, 50
- Rated Voltages (Vac): 480
- Input: 4-32Vdc
- Trigger: Zero crossing
Download Block Type SSR datasheet
Accessories
- Ultrarapid Fuses
- Fuseholders
- Heatsinks
- Heat transfer paste