The Siemens 3RH2131-1BG40 contactor relay delivers reliable auxiliary switching for industrial control panels, machinery, and building services. As part of the proven 3RH2 family, it supports precise control of interlocks, signaling, and feedback in automation and switchgear applications.

Designed for consistent switching performance and long service life, the 3RH2131-1BG40 helps streamline panel design thanks to its compact footprint and robust construction. It integrates seamlessly into IEC-compliant control circuits and is well suited for PLC-driven logic, motor starters, and distributed control architectures in OEM and maintenance environments.

Choose this Siemens contactor relay when you need dependable auxiliary switching that supports efficient assembly, scalable upgrades, and predictable maintenance, backed by a 1-year warranty for added confidence from commissioning through operation.

• Brand: Siemens
• Series: 3RH2
• Model: 3RH2131-1BG40
• Type: Contactor relay