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Siemens 3RH2911-1AA01 Auxiliary Switch — 1 NC, Front Mount

Siemens 3RH2911-1AA01 Auxiliary Switch with 1 NC contact.

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ManufacturerSiemens

Part number3RH2911-1AA01

Contacts 1 NC

Mounting Front

Terminal Type Screw

For Use With Siemens 3RT2 Contactors and 3RH2 Contactor Relays

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1 Normally Closed Contact Front Mounting Screw Terminals Extends Contactor/Relay Functionality For 3RT2 & 3RH2 Series

Product description

The Siemens 3RH2911-1AA01 is a front-mountable auxiliary switch featuring one normally closed (NC) contact. This component is designed to expand the functionality of Siemens 3RT2 contactors and 3RH2 contactor relays. It utilizes screw terminals for secure electrical connections and provides a current path for the NC contact.

This auxiliary switch is essential for adding feedback or interlocking capabilities to control systems. It can be used to signal the status of a contactor or relay in PLCs, safety circuits, or monitoring systems across industries like manufacturing, building automation, and material handling.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RH2911-1AA01. We provide tested, reliable surplus components, ensuring you receive quality parts to enhance your automation solutions while optimizing costs.

Technical specifications

Contacts	1 NC
Mounting	Front
Terminal Type	Screw
For Use With	Siemens 3RT2 Contactors and 3RH2 Contactor Relays
Current Path	1 NC

Common applications

Control System Feedback

Safety Circuits

Interlocking

Status Monitoring

Automation Systems

Compatible systems

Siemens 3RT2 Contactors Siemens 3RH2 Contactor Relays

Also known as

Siemens 3RH2 Auxiliary Contact 3RH2911 NC

Replaces / compatible with

This auxiliary switch is designed to be added to Siemens 3RT2 contactors and 3RH2 contactor relays to provide additional NC contacts. It is compatible with various models within these series.

Technical note

Expert tip

This front-mounted auxiliary switch easily snaps onto compatible Siemens 3RT2 contactors and 3RH2 contactor relays, enhancing their control capabilities without requiring significant panel space.

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Frequently asked questions

What type of contact does the Siemens 3RH2911-1AA01 auxiliary switch provide?

The Siemens 3RH2911-1AA01 auxiliary switch provides one normally closed (NC) contact. This allows it to be used for signaling that a main contactor or relay is not energized.