Autonics SR3-1450 50 A Solid State Relay
The SR3-1450 is an Autonics 50 A Solid State Relay supporting 50A load current and three-phase control for industrial. Manufactured by Autonics, this relay is part of the Autonics Solid State Relay range and belongs to the SR Series. It operates with 4–30VDC input voltage, 48–480VAC load voltage, features zero cross turn-on, and provides 4000VAC dielectric strength.

| Brand | Autonics |
| Product Type | Solid State Relay |
| Model Number | SR3-1450 |
Autonics SR3-1450 50 A Solid State Relay – Technical Specifications
| Specification | Value |
|---|---|
| Control phase | 3-phase |
| Mounting type | Panel |
| Rated input voltage | 4-30VDC |
| Rated load voltage | 48-480VAC~ |
| Dielectric strength | 4,000VAC~ |
| Rated load current | 50A |
| Function | Zero cross turn-on |
| Environment_Ambient temperature | -30 to 80℃(in case of the rated input voltage 90-240VAC~: -30 to 70℃), Storage: -30 to 100℃( The rated load current capacity is different depending on ambient temperature. Refer to '▣ SSR Derating Curve'.) |
| Environment_Ambient humidity | 45 to 85% RH, storage: 45 to 85% RH |
| Weight | approx. 365g(approx. 275g) |
The Autonics SR3-1450 50 A Solid State Relay is designed for high-current AC load control in industrial automation systems. This model supports 50A rated load current, operates across 48–480VAC load voltage, and uses three-phase control for balanced power switching. It belongs to the SR Series and is applied in industrial environments requiring stable solid state relay operation.
In industrial automation applications, the SR3-1450 Autonics 50 A Solid State Relay is used in conveyors, packaging systems, automated assembly lines, and heavy-duty process equipment. Panel mounting supports secure installation inside control cabinets, while solid-state switching enables consistent three-phase AC load handling. Zero-cross turn-on helps reduce electrical noise during switching operations.
The SR3-1450 Autonics 50 A Solid State Relay combines three-phase operation, 50A switching capacity, and 4000VAC isolation strength for dependable industrial use. Manufactured under Autonics standards and structured within the SR Series, this relay is suitable for industrial automation systems requiring reliable high-current AC load control and long-term electrical stability.




