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Siemens 3RH2911-2GA22 Auxiliary Switch - 2 NO / 2 NC

Siemens 3RH2911-2GA22 Auxiliary Switch (2 NO / 2 NC)

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ManufacturerSiemens

Part number3RH2911-2GA22

Type Auxiliary Switch

Configuration 2 NO + 2 NC

Mounting Front

Terminals Spring-loaded

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2 NO and 2 NC contacts Spring-loaded terminals Front mounting Physically coded Expands contactor relay functions EN 50011 compliant

Product description

The Siemens 3RH2911-2GA22 is an auxiliary switch designed for front mounting, featuring 2 Normally Open (NO) and 2 Normally Closed (NC) contacts. It utilizes spring-loaded terminals for secure connections and is physically coded. This auxiliary switch is specifically designed to be combined with Siemens 3RH2140 and 3RH2440 contactor relays according to EN 50011 standards. The current path is configured as 1 NO, 1 NC, 1 NC, 1 NO.

This auxiliary switch is crucial for expanding the control and signaling capabilities of contactor relays in industrial control panels. It provides additional contacts for interlocks, status feedback, and auxiliary functions in motor control circuits, automation systems, and control panels.

Stanlo Automation, a veteran-owned business, offers the Siemens 3RH2911-2GA22 and a wide range of industrial automation components. We are committed to providing reliable parts and efficient service for your automation needs.

Technical specifications

Type	Auxiliary Switch
Configuration	2 NO + 2 NC
Mounting	Front
Terminals	Spring-loaded
Coding	Physically coded
Compatibility	3RH2140, 3RH2440

Common applications

Motor control centers

Control panels

Industrial automation

Machine safety circuits

Relay logic systems

Compatible systems

Siemens 3RH2140 Contactor Relay Siemens 3RH2440 Contactor Relay

Also known as

Siemens Contactor Auxiliary 3RH29 Auxiliary Switch Siemens 2 NO 2 NC Switch

Replaces / compatible with

Used to add auxiliary contacts to Siemens 3RH2140 and 3RH2440 contactor relays, expanding their control capabilities.

Technical note

Expert tip

Ensure the contactor relay is de-energized before installing or removing this auxiliary switch unit.

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Frequently asked questions

What contactor relays is the Siemens 3RH2911-2GA22 auxiliary switch compatible with?

The Siemens 3RH2911-2GA22 auxiliary switch is designed to be combinable with Siemens 3RH2140 and 3RH2440 contactor relays, according to EN 50011.