Autonics SR1-4440-N 90-240 V AC Solid State Relay
The SR1-4440-N is an Autonics 90-240 V AC Solid State Relay supporting 40A load current industrial applications single phase. Manufactured by Autonics, this relay is part of the Autonics Solid State Relay range and belongs to the SR1 Series. It operates with 90–240VAC input voltage, 48–480VAC load voltage, features zero cross turn-on, and provides 2500VAC dielectric strength.

| Brand | Autonics |
| Product Type | Solid State Relay |
| Model Number | SR1-4440-N |
Autonics SR1-4440-N 90-240 V AC Solid State Relay – Technical Specifications
| Specification | Value |
|---|---|
| Control phase | Single-phase |
| Mounting type | Panel |
| Rated input voltage | 90-240VAC~ |
| Rated load voltage | 48-480VAC~ |
| Dielectric strength | 2500VAC~ 50/60Hz 1 min (Input-Output, Input/Output-Case) |
| Rated load current | 40A |
| Function | Zero cross turn-on |
| Environment_Ambient temperature | -20 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. 111g(approx. 73g) |
The SR1-4440-N Autonics 90-240 V AC Solid State Relay is designed for controlled AC load switching in industrial automation systems. This model supports 40A rated load current, operates across 48–480VAC load voltage, and uses single-phase control for stable operation. It belongs to the SR1 Series and is commonly used in industrial automation panels.
In industrial automation environments, the SR1-4440-N Autonics 90-240 V AC Solid State Relay is applied in conveyors, packaging machines, automated assembly lines, and process control equipment. Panel mounting supports secure installation inside control cabinets, while solid-state switching enables consistent AC load handling without mechanical wear. Zero-cross turn-on helps reduce electrical noise during switching.
The SR1-4440-N Autonics 90-240 V AC Solid State Relay combines single-phase operation, 40A switching capacity, and 2500VAC isolation strength for dependable industrial use. Manufactured under Autonics standards and structured within the SR1 Series, this relay is suitable for industrial automation systems requiring reliable AC load control and long-term electrical stability.




