Autonics SR3-1440 Solid State Relay DC Output
SR3-1440 is an Autonics Solid State Relay DC Output supporting three-phase control with 40A capacity for industrial automation panels. Manufactured by Autonics, this Autonics Solid State Relay operates using 4–30VDC rated input voltage and switches 48–480VAC load voltage. Part of the SR Series, it provides three-phase control, 40A rated load current, zero cross turn-on function, panel mounting, and 4000VAC dielectric strength.
| Brand | Autonics |
| Product Type | Solid State Relay |
| Model Number | SR3-1440 |
Autonics SR3-1440 Solid State Relay DC Output – 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 | 40A |
| 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 SR3-1440 Solid State Relay DC Output is designed for controlled AC load switching in industrial automation systems. This SR3-1440 Autonics Solid State Relay DC Output supports 4–30VDC input voltage, manages 48–480VAC load voltage, and handles 40A load current under three-phase operation. As part of the SR Series, it is used in industrial automation panels across India.
In application, the SR3-1440 Autonics Solid State Relay DC Output is installed in conveyors, packaging machines, automated assembly lines, and process automation systems. Zero cross turn-on operation helps reduce electrical stress during switching, while panel mounting ensures stable installation. These characteristics support consistent output performance in continuous industrial automation environments.
The SR3-1440 from Autonics offers clearly defined electrical specifications suited for industrial automation requirements. With controlled three-phase switching, verified insulation strength, and standardized panel mounting, this solid state relay integrates reliably into control system designs. The SR Series structure and Autonics manufacturing consistency support dependable selection for engineers specifying DC-controlled solid state relays.
