Siemens 3G-OTH-44951 — Technical Specifications
The SIEMENS Overload Relay: Electronic Protection (MPN 3RB31334UB0) is an IEC electronic overload relay in Frame Size S2, compatible with SIRIUS contactors of the same frame size. It features a 1NO/1NC auxiliary contact form, screw terminals, and a maximum voltage rating of 690V AC, with a current range of 12 A to 50 A. This electronic type does not require thermal units and has no phase loss sensitivity.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | 1NO/1NC, Frame Size S2, 12 A – 50 A |
| Brand | SIEMENS |
| Poles | 3 |
| Frame Size | S2 |
| Compatible Contactors | Frame Size S2 |
| Auxiliary Contact Form | 1NO/1NC |
| Maximum Voltage Rating | 690V AC |
| Phase Loss Sensitivity | No |
| Thermal Units Required | Not Applicable to Electronic Type Overload Relays |
| Manufacturer Part Number | 3RB31334UB0 |
| Terminal Connection Type | Screw Terminals |
| Compatible Contactor Series | SIRIUS |