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Siemens 3RH2122-1BF40 Contactor Relay — 2 NO + 2 NC, 110V DC

Siemens 3RH2122-1BF40 Contactor Relay, 2 NO + 2 NC, 110V DC.

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ManufacturerSiemens

Part number3RH2122-1BF40

Contacts 2 NO + 2 NC

Coil Voltage 110 V DC

Terminal Type Screw

Frame Size S00

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Veteran-owned

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2 normally open contacts 2 normally closed contacts 110V DC coil Screw terminal connections Frame size S00 DC control applications

Product description

The Siemens 3RH2122-1BF40 is a DC-operated contactor relay featuring 2 normally open (NO) and 2 normally closed (NC) contacts. It is designed for a 110V DC coil voltage. The relay utilizes screw terminals for secure and reliable connections and is built on the compact S00 frame size, suitable for space-saving installations.

This DC contactor relay is essential for control systems that operate on direct current, such as those found in renewable energy applications, battery-powered equipment, and certain industrial DC control circuits. Its contact configuration allows for versatile use in switching and interlocking functions.

Stanlo Automation, a veteran-owned distributor of industrial surplus, provides the Siemens 3RH2122-1BF40. We offer quality-assured parts with competitive pricing and prompt delivery, ensuring your DC control systems remain functional.

Technical specifications

Contacts	2 NO + 2 NC
Coil Voltage	110 V DC
Terminal Type	Screw
Frame Size	S00

Common applications

DC control systems

Renewable energy

Battery-powered equipment

Industrial DC circuits

Automation

Compatible systems

SIRIUS 3RH2 Contactor Relays

Also known as

Siemens SIRIUS contactor relay 3RH21221BF40 110V DC relay

Replaces / compatible with

Direct replacement for Siemens contactor relays with 110V DC coils and S00 frame size. Compatible with SIRIUS 3RH2 series accessories.

Technical note

Expert tip

Ensure correct polarity is observed when connecting the 110V DC coil to prevent operational issues.

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Frequently asked questions

What type of power does the Siemens 3RH2122-1BF40 contactor relay use for its coil?

The Siemens 3RH2122-1BF40 contactor relay is designed with a coil that operates on 110V DC (Direct Current).