If youβre not fully sure about SR3-1450, taking a closer look at Autonics Proximity Sensor, Autonics Digital Counter and Selec Solid State Relay often helps compare reliability, cost, and availability.
Autonics SR3-1450 Solid State Relay
The Autonics SR3-1450 Solid State Relay offers 3-phase control, Panel Mounting type, 4-30VDC input voltage, 48-480VAC~ load voltage. Manufactured by Autonics under the Autonics Solid State Relay category, this model belongs to the Autonics SR Series.
| Brand | Autonics |
| Product Type | Solid State Relay |
| Model Number | SR3-1450 |
Autonics SR3-1450 Solid State Relay β 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 80β(in case of the rated input voltage 90-240VAC~: -30 to 70β), Storage: -30 to 100β( The rated load current capacity is different depending on ambient temperature. Refer to 'β£ SSR Derating Curve'.) |
| Environment_Ambient humidity | 45 to 85% RH, storage: 45 to 85% RH |
| Weight | approx. 365g(approx. 275g) |
The Autonics SR3-1450 Solid State Relay is designed as a 3-Phase SSR Detachable Heatsink Type that provides reliable power control for demanding automation systems. It operates with a rated input voltage of 4β30VDC and manages load voltages between 48β480VAC, ensuring broad compatibility across industrial setups. A 50A rated load current supports heavy-duty applications, while its zero-cross turn-on function minimizes electrical noise, stabilizes switching, and protects sensitive equipment. With a dielectric strength of 4,000VAC, the relay ensures robust insulation and safety in high-power environments. The detachable heatsink optimizes thermal performance, and panel-mount installation simplifies integration. Built for harsh conditions, it maintains dependable operation in β30β to +80β environments and withstands humidity levels of 45β85% RH. This engineering precision highlights Autonicsβ focus on durability, efficiency, and operator safety.
In practical applications, the SR3 1450 is used for heater banks, motor control, and high-capacity power switching. Engineers benefit from its contactless design, which reduces wear and downtime, while maintenance teams appreciate its compact build and ease of integration. By ensuring stable operation in packaging, manufacturing, and heavy machinery plants, this three phase solid state relay has become a reliable choice for continuous duty cycles. Many procurement teams prefer sourcing SR3-1450 through wholesalers, dealers, and distributors to meet project schedules and maintain stock availability.
The Autonics SR3-1450 is a proven component within the Autonics SR3 Series, recognized for efficient heat dissipation and long-term reliability. Engineers often search for terms like SR3-1450, SR3 1450, three phase SSR, and SSR 3 phase when evaluating models for automation projects. By combining high insulation strength, zero-cross technology, and detachable heatsink design, this relay addresses both safety and performance requirements. Its adoption across Indian industries underscores why the Autonics SR3 Series continues to be trusted in mission-critical environments that demand precise and stable power control.
