Autonics SR3-1275 DC Current Switch Relay
SR3-1275 is an Autonics DC Current Switch Relay supporting three-phase control with 75A capacity for industrial automation applications India. Manufactured by Autonics, this Autonics Solid State Relay operates using 4–30VDC rated input voltage and switches 24–240VAC load voltage. Part of the SR Series, it provides three-phase control, 75A rated load current, zero cross turn-on function, panel mounting, and 4000VAC dielectric strength.
| Brand | Autonics |
| Product Type | Solid State Relay |
| Model Number | SR3-1275 |
Autonics SR3-1275 DC Current Switch Relay – Technical Specifications
| Specification | Value |
|---|---|
| Control phase | 3-phase |
| Mounting type | Panel |
| Rated input voltage | 4-30VDC |
| Rated load voltage | 24-240VAC~ |
| Dielectric strength | 4,000VAC~ |
| Rated load current | 75A |
| 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 SR3-1275 DC Current Switch Relay is used for high-current AC load control in industrial automation systems. This SR3-1275 Autonics DC Current Switch Relay supports 4–30VDC input voltage, handles 24–240VAC load voltage, and manages 75A load current under three-phase operation. As part of the SR Series, it is applied in industrial automation panels requiring controlled multi-phase switching.
In application environments, the SR3-1275 Autonics DC Current Switch Relay is installed in conveyors, packaging machinery, automated assembly lines, and heavy-duty automation equipment. Zero cross turn-on operation helps limit electrical stress during switching, while panel mounting ensures stable installation. These characteristics support consistent output behavior in continuous industrial automation processes.
The SR3-1275 from Autonics offers clearly defined electrical specifications aligned with industrial automation requirements. With controlled three-phase switching, verified insulation capability, and standardized mounting format, this solid state relay integrates reliably into control system designs. The SR Series structure and Autonics manufacturing reliability support confident selection for engineers specifying DC-controlled solid state relays.
