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Siemens 3RH2911-2HA12 Front Mount Auxiliary Switch - 1 NO + 2 NC

Siemens 3RH2911-2HA12 Front Mount Auxiliary Switch

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ManufacturerSiemens

Part number3RH2911-2HA12

Contact Configuration 1 NO + 2 NC

Mounting Front

Terminal Type Spring-loaded

Compatibility Siemens 3RT2, 3RH2

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Veteran-owned

CAGE: 9NK75

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

Product description

The Siemens 3RH2911-2HA12 is a front-mountable auxiliary switch that expands control capabilities by adding one normally open (NO) and two normally closed (NC) contacts to Siemens 3RT2 contactors and 3RH2 contactor relays. It features convenient spring-loaded terminals for quick and secure wiring, enhancing installation efficiency.

This auxiliary switch is ideal for complex control circuits requiring multiple feedback and interlocking signals. Its configuration is suitable for advanced automation tasks, status monitoring, and safety-related functions in various industrial applications.

Stanlo Automation, a veteran-owned business, offers the Siemens 3RH2911-2HA12 auxiliary switch. We are committed to providing high-quality, reliable surplus industrial components to keep your operations running smoothly.

Technical specifications

Contact Configuration	1 NO + 2 NC
Mounting	Front
Terminal Type	Spring-loaded
Compatibility	Siemens 3RT2, 3RH2
IP Rating	IP20

Common applications

Control Panels

Motor Control

Automation Systems

Feedback Signaling

Interlocking

Relay Control

Compatible systems

Siemens 3RT2 Siemens 3RH2

Also known as

Siemens SIRIUS 3RH29 Auxiliary Switch 3RH2911-2HA12 Contactor Auxiliary

Replaces / compatible with

This auxiliary switch is designed to add one NO and two NC contacts to Siemens 3RT2 contactors and 3RH2 contactor relays.

Technical note

Expert tip

The spring-loaded terminals on the 3RH2911-2HA12 offer a tool-free connection solution, reducing installation time and potential wiring errors.

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Frequently asked questions

What additional contacts does the Siemens 3RH2911-2HA12 provide?

The Siemens 3RH2911-2HA12 auxiliary switch provides one normally open (NO) contact and two normally closed (NC) contacts. These are used to expand the signaling and control capabilities of the main contactor or relay.