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Siemens 3RH2911-2HA01 Front Mount Auxiliary Switch - 1 NC

Siemens 3RH2911-2HA01 Front Mount Auxiliary Switch

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ManufacturerSiemens

Part number3RH2911-2HA01

Contact Configuration 1 NC

Mounting Front

Terminal Type Spring-loaded

Compatibility Siemens 3RT2, 3RH2

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One Normally Closed (NC) Contact Spring-loaded Terminals Front Mountable SIRIUS Series Compact Design

Product description

The Siemens 3RH2911-2HA01 is a front-mountable auxiliary switch designed to add a single normally closed (NC) contact to Siemens 3RT2 contactors and 3RH2 contactor relays. It features a simple, reliable design with spring-loaded terminals for easy and secure wiring. This switch is ideal for basic control and signaling functions where an additional NC contact is required.

This auxiliary switch is commonly used for applications such as signaling the status of a contactor or relay, or for simple interlocking functions in control circuits. Its compact size and front-mounting capability make it suitable for use in space-constrained control panels.

Stanlo Automation, a veteran-owned supplier, provides the Siemens 3RH2911-2HA01 auxiliary switch. We focus on delivering dependable surplus industrial automation parts to meet your operational needs, backed by expert service.

Technical specifications

Contact Configuration	1 NC
Mounting	Front
Terminal Type	Spring-loaded
Compatibility	Siemens 3RT2, 3RH2
IP Rating	IP20

Common applications

Control Panels

Motor Control

Status Signaling

Interlocking

Relay Control

Compatible systems

Siemens 3RT2 Siemens 3RH2

Also known as

Siemens SIRIUS 3RH29 Auxiliary Switch 3RH2911-2HA01 Contactor Auxiliary

Replaces / compatible with

This auxiliary switch is compatible with Siemens 3RT2 contactors and 3RH2 contactor relays to add a single NC auxiliary contact.

Technical note

Expert tip

This auxiliary switch is designed for front mounting on Siemens 3RT2 contactors and 3RH2 contactor relays, offering a simple expansion of NC contacts.

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Frequently asked questions

What is the primary function of the Siemens 3RH2911-2HA01 auxiliary switch?

The Siemens 3RH2911-2HA01 serves to add a single normally closed (NC) auxiliary contact to a Siemens 3RT2 contactor or 3RH2 contactor relay. This contact changes state when the main device operates, providing feedback or control signals.