
SIEMENS 3RH1122-1BB40 CONTACTOR RELAY New
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The Siemens SIRIUS 3RH1122-1BB40 contactor relay delivers reliable auxiliary switching in a compact S00 footprint designed for modern control panels. With a 2 NO + 2 NC contact set, it is ideally suited for interlocking, signaling, and auxiliary functions across machine control, HVAC, and process automation environments.
Engineered for precise control, the 24 V DC coil ensures fast pull-in and stable performance in PLC and low-voltage control circuits. Robust screw terminals provide secure, vibration-resistant wiring and quick commissioning, while the DIN rail form factor integrates seamlessly with SIRIUS accessories and modular panel designs.
For panel builders and OEMs who value consistent quality and straightforward installation, this auxiliary relay offers dependable operation and a long service life, complemented by a 1-year warranty that adds confidence to your project specification.
- Brand: Siemens
- Series: SIRIUS
- Model: 3RH1122-1BB40
- Contact configuration: 2 NO + 2 NC
- Coil voltage: 24 V DC
- Size: S00
- Connection type: Screw terminal
- Mounting: DIN rail (35 mm)