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Siemens 3RH2911-1XA22-0MA0 Front Aux Switch - 2 NO, 2 NC

Siemens 3RH2911-1XA22-0MA0 front auxiliary switch with 2 NO and 2 NC contacts.

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ManufacturerSiemens

Part number3RH2911-1XA22-0MA0

Type Auxiliary switch

Mounting Front

Contacts 2 NO, 2 NC

Terminal Type Screw

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Front mounting 2 Normally Open (NO) contacts 2 Normally Closed (NC) contacts Screw terminals Versatile 4-contact configuration For 3RT2/3RH2 series

Product description

The Siemens 3RH2911-1XA22-0MA0 is a front-mounted auxiliary switch unit designed for Siemens 3RT2 contactors and 3RH2 contactor relays. This unit provides a total of 4 contacts: 2 Normally Open (NO) and 2 Normally Closed (NC). It features screw terminals for secure connections and is compatible with the 3RT2 and 3RH2 series.

With its comprehensive contact configuration (1 NO, 1 NC, 1 NC, 1 NO), this auxiliary switch is ideal for complex control and signaling tasks in industrial automation. Applications include advanced motor control, safety circuits, and status feedback in machine building, chemical processing, and energy sectors.

Stanlo Automation, a veteran-owned supplier of surplus industrial parts, offers the Siemens 3RH2911-1XA22-0MA0. We provide reliable components to help you maintain or upgrade your automation systems efficiently.

Technical specifications

Type	Auxiliary switch
Mounting	Front
Contacts	2 NO, 2 NC
Terminal Type	Screw
Series	3RH2
Compatibility	3RT2 contactors, 3RH2 contactor relays

Common applications

Motor control systems

Control panel wiring

Automation safety circuits

Industrial machinery

Food & beverage

Water treatment

Compatible systems

Siemens 3RT2 contactors Siemens 3RH2 contactor relays

Also known as

Siemens 3RH29111XA220MA0 3RH2911-1XA22-0MA0 contact block

Replaces / compatible with

Expands the functionality of Siemens 3RT2 contactors and 3RH2 contactor relays by adding multiple NO and NC auxiliary contacts for signaling and control.

Technical note

Expert tip

This 3RH2911-1XA22-0MA0 auxiliary switch can be mounted directly to the front of compatible Siemens 3RT2 contactors or 3RH2 contactor relays.

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Frequently asked questions

How many NO and NC contacts are available on the Siemens 3RH2911-1XA22-0MA0?

The Siemens 3RH2911-1XA22-0MA0 auxiliary switch is equipped with a total of four contacts: two Normally Open (NO) and two Normally Closed (NC). This configuration allows for complex logic and signaling within control systems.