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Siemens 3RH2131-1BF40 3-Pole Contactor Relay - 110V DC

Siemens 3RH2131-1BF40 3-pole auxiliary contactor relay with 3 NO, 1 NC contacts.

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ManufacturerSiemens

Part number3RH2131-1BF40

Coil Voltage 110 V DC

Contacts 3 NO + 1 NC

Terminal Type Screw

Frame Size S00

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3 NO and 1 NC auxiliary contacts 110V DC coil Screw terminal connections Frame size S00 Reliable control switching

Product description

The Siemens 3RH2131-1BF40 is a versatile 3-pole auxiliary contactor relay featuring 3 normally open (NO) and 1 normally closed (NC) contacts. It operates with a 110V DC coil voltage and is equipped with convenient screw terminals for installation. This model belongs to the compact S00 frame size.

This contactor relay is widely used in industrial automation for control tasks, including switching auxiliary circuits in motor starters, managing lighting, and providing signaling functions in control panels and machinery across diverse sectors.

Stanlo Automation, a veteran-owned business, provides the Siemens 3RH2131-1BF40. We specialize in surplus industrial automation components, offering reliable parts and expert service to keep your systems running efficiently.

Technical specifications

Coil Voltage	110 V DC
Contacts	3 NO + 1 NC
Terminal Type	Screw
Frame Size	S00
Series	3RH21

Common applications

Motor control

Lighting control

Automation systems

Control panels

Industrial machinery

Process control

Compatible systems

Control systems requiring 110V DC auxiliary contacts

Also known as

Siemens 3RH21311BF40 3RH2131-1BF40 Contactor Siemens Auxiliary Relay

Replaces / compatible with

This part is a Siemens 3RH21 series contactor relay. It is compatible with Siemens 3RH21 accessories.

Technical note

Expert tip

This relay is designed for 110V DC control circuits; verify voltage compatibility before installation.

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Frequently asked questions

What is the coil voltage for the Siemens 3RH2131-1BF40?

The Siemens 3RH2131-1BF40 operates with a coil voltage of 110V DC. Ensure this voltage is correctly applied for proper functionality.