SIEMENS 3RH2140-2JB40 CONTACTOR RELAY New
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Optimized for control panels and machine automation, the Siemens 3RH2140-2JB40 contactor relay delivers dependable switching for interlocking, signaling, and interface tasks. With a compact footprint and a robust contact system, it is an ideal auxiliary contactor for OEMs, panel builders, and maintenance teams who demand consistent performance in demanding industrial environments.
Part of the Siemens SIRIUS range, the 3RH2140-2JB40 features four normally open contacts (4NO) for reliable control-circuit expansion. It supports currents up to 10 A and offers a rated insulation voltage of 690 V AC, delivering secure separation and high dielectric strength. The standardized 35 mm DIN-rail mounting and clear terminal layout streamline installation and wiring in IEC-compliant control cabinets.
Whether you are implementing safety interlocks, status feedback, or logic functions, this auxiliary contactor helps build scalable, serviceable systems while keeping lifecycle costs under control, and it is backed by a 1-year warranty to support long-term reliability planning.
- Brand: Siemens
- Series: SIRIUS
- Model: 3RH2140-2JB40
- Device type: Contactor relay (auxiliary contactor)
- Contact configuration: 4NO
- Rated thermal current: 10 A
- Rated insulation voltage: 690 V AC
- Mounting: DIN rail 35 mm