High 120A Power Switching: Engineered to handle heavy load currents up to 120A, ensuring stable power delivery to high-wattage heating elements and UV curing units.
Optical Isolation Protection: Built-in optocoupler isolation separates the sensitive low-voltage control board from high-voltage AC loads, preventing electrical noise and voltage feedback from damaging mainboards.
Zero-Cross Triggering: Switches AC power at zero voltage points to minimize electromagnetic interference (EMI), voltage surges, and electrical arcing.
High 120A Power Switching: Engineered to handle heavy load currents up to 120A, ensuring stable power delivery to high-wattage heating elements and UV curing units.
Optical Isolation Protection: Built-in optocoupler isolation separates the sensitive low-voltage control board from high-voltage AC loads, preventing electrical noise and voltage feedback from damaging mainboards.
Zero-Cross Triggering: Switches AC power at zero voltage points to minimize electromagnetic interference (EMI), voltage surges, and electrical arcing.
| Parameter | Specification |
| Model | SSR-120DA |
| Relay Type | Single Phase Solid State Relay (DC to AC) |
| Control Voltage (Input) | 3 – 32 VDC |
The SSR-120DA SOLID STATE RELAY is a heavy-duty, contactless electronic switch designed for precise, high-current power switching in digital printing machines, large-format inkjet printers, UV flatbed printers, and sublimation machinery.
Unlike traditional electromechanical relays, this solid-state relay uses semiconductor technology with optical isolation to control high-voltage AC heating and power systems using a low-voltage 3–32V DC signal. Because it has no moving parts
