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Siemens 3RH2911-2HA22 Front Mount Auxiliary Switch - 2 NO + 2 NC

Siemens 3RH2911-2HA22 Front Mount Auxiliary Switch

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ManufacturerSiemens

Part number3RH2911-2HA22

Contact Configuration 2 NO + 2 NC

Mounting Front

Terminal Type Spring-loaded

Compatibility Siemens 3RT2, 3RH2

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Veteran-owned

CAGE: 9NK75

Two Normally Open (NO) Contacts Two Normally Closed (NC) Contacts Spring-loaded Terminals Front Mountable SIRIUS Series

Product description

The Siemens 3RH2911-2HA22 is a front-mountable auxiliary switch designed to add two normally open (NO) and two normally closed (NC) contacts to Siemens 3RT2 contactors and 3RH2 contactor relays. It features spring-loaded terminals for efficient and secure wiring, making it suitable for a wide range of industrial applications.

This auxiliary switch provides a versatile solution for complex control and signaling needs in automation systems. Its combination of NO and NC contacts allows for sophisticated interlocking, feedback, and status monitoring functions, ensuring reliable operation.

Stanlo Automation, a veteran-owned supplier, offers the Siemens 3RH2911-2HA22 auxiliary switch. We are dedicated to providing high-quality surplus industrial automation components, ensuring you receive dependable parts for your machinery and control systems.

Technical specifications

Contact Configuration	2 NO + 2 NC
Mounting	Front
Terminal Type	Spring-loaded
Compatibility	Siemens 3RT2, 3RH2
IP Rating	IP20

Common applications

Control Panels

Motor Control

Automation Systems

Interlocking

Feedback Signaling

Relay Control

Compatible systems

Siemens 3RT2 Siemens 3RH2

Also known as

Siemens SIRIUS 3RH29 Auxiliary Switch 3RH2911-2HA22 Contactor Auxiliary

Replaces / compatible with

This auxiliary switch adds two NO and two NC contacts to Siemens 3RT2 contactors and 3RH2 contactor relays, enhancing their control functionality.

Technical note

Expert tip

The spring-loaded terminals on the 3RH2911-2HA22 ensure a secure, vibration-resistant connection, crucial for reliable operation in demanding industrial environments.

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Frequently asked questions

What is the contact configuration of the Siemens 3RH2911-2HA22?

The Siemens 3RH2911-2HA22 auxiliary switch is configured with two normally open (NO) and two normally closed (NC) contacts. This provides a balanced set of contacts for complex control and signaling circuits.