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Siemens 3RH2911-1GA13 Front Auxiliary Switch - 1 NO + 3 NC

Siemens 3RH2911-1GA13 front auxiliary switch with 1 NO + 3 NC contacts.

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ManufacturerSiemens

Part number3RH2911-1GA13

Mounting Front

Contacts 1 NO, 3 NC

Terminals Screw

Coding Physical

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Front mounting 1 NO + 3 NC contacts Screw terminal connections Physically coded for compatibility For 3RH2140/3RH2440 contactor relays

Product description

The Siemens 3RH2911-1GA13 is a front-mounting auxiliary switch designed for Siemens contactor relays 3RH2140 and 3RH2440. It features a combination of one normally open (NO) contact (terminals 53/54) and three normally closed (NC) contacts (terminals 61/62, 71/72, 81/82). This switch uses screw terminals for connections and is physically coded for specific application matching.

This auxiliary switch is employed in complex control circuits where both signaling and multiple circuit interruption functions are needed. It is suitable for applications in industrial automation, machine safety, and control panels requiring diverse contact configurations for reliable operation.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RH2911-1GA13. We are dedicated to providing quality industrial automation components to help you maintain efficient and productive operations.

Technical specifications

Mounting	Front
Contacts	1 NO, 3 NC
Terminals	Screw
Coding	Physical
For	3RH2140, 3RH2440
Series	3RH29

Common applications

Control logic

Safety circuits

Interlocking

Industrial automation

Motor control

Compatible systems

Siemens 3RH2140 Contactor Relays Siemens 3RH2440 Contactor Relays

Also known as

Siemens 3RH29111GA13 Siemens 1 NO 3 NC auxiliary contact

Replaces / compatible with

This auxiliary switch is designed for combination with Siemens 3RH2140 and 3RH2440 contactor relays, providing a mix of NO and NC contacts.

Technical note

Expert tip

The physical coding of the 3RH2911-1GA13 is crucial for ensuring it is correctly installed on the intended Siemens 3RH2140 or 3RH2440 contactor relays.

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Frequently asked questions

What is the contact arrangement for the Siemens 3RH2911-1GA13?

The Siemens 3RH2911-1GA13 auxiliary switch features one normally open (NO) contact at terminals 53/54 and three normally closed (NC) contacts at terminals 61/62, 71/72, and 81/82.