
Siemens 3G-OTH-40409 — Technical Specifications
The SIEMENS Overload Relay is an IEC thermal overload relay from the SIRIUS series, designed for frame size S0 contactors. It features integrated bimetallic elements, screw terminals, and a 1NO/1NC auxiliary contact form, with a maximum voltage rating of 690V AC and a current range of 1.8 A to 2.5 A.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | 1NO/1NC, Frame Size S0, 1.8 A – 2.5 A |
| Brand | SIEMENS |
| Poles | 3 |
| Frame Size | S0 |
| Compatible Contactors | Frame Size S0 |
| Auxiliary Contact Form | 1NO/1NC |
| Maximum Voltage Rating | 690V AC |
| Phase Loss Sensitivity | No |
| Thermal Units Required | None (Relay Includes Integrated Bimetallic Elements) |
| Manufacturer Part Number | 3RU21261CB0 |
| Terminal Connection Type | Screw Terminals |
| Compatible Contactor Series | SIRIUS |
