Siemens 3RH1911-2GA31 4-Pole Auxiliary Switch Block

Siemens 3RH1911-2GA31 4-pole auxiliary switch block for contactor relays.

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ManufacturerSiemens

Part number3RH1911-2GA31

Poles 4

Contacts 3 NO + 1 NC

Terminal Type Spring-type

Standard EN 50011

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Veteran-owned

CAGE: 9NK75

Spring-type terminal 3 NO + 1 NC configuration EN 50011 compliant Designed for contactor relays Phased-out product

Product description

The Siemens 3RH1911-2GA31 is a 4-pole auxiliary switch block featuring spring-type terminals and a contact arrangement of 3 normally open (NO) and 1 normally closed (NC) contacts, conforming to EN 50011 standards. It is designed for integration with Siemens contactor relays. This product is phased out, with the SIRIUS 3RH2 series, specifically the 3RH2911-2GA31, being its recommended successor.

This auxiliary switch block is essential for expanding the control capabilities of contactors, providing additional signaling and interlocking contacts. It is commonly employed in industrial automation for applications such as motor control systems, power management, and process control across diverse industries.

Stanlo Automation, a veteran-owned business, is a reliable source for surplus industrial automation parts. If you are in need of the Siemens 3RH1911-2GA31, Stanlo Automation can provide this phased-out component to support your operational continuity.

Technical specifications

Poles	4
Contacts	3 NO + 1 NC
Terminal Type	Spring-type
Standard	EN 50011

Common applications

Motor control

Control panels

Automation systems

Signaling circuits

Interlocking circuits

Compatible systems

Siemens 3RH1 contactor relays

Also known as

Siemens 3RH1911-2GA31 auxiliary contact block Siemens 3 NO 1 NC auxiliary switch

Replaces / compatible with

This part is a phased-out product. The preferred successor is the Siemens 3RH2911-2GA31.

Technical note

Expert tip

The spring-type terminals on the 3RH1911-2GA31 ensure a vibration-resistant connection, crucial for reliable performance in demanding industrial environments.

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Frequently asked questions

Can the Siemens 3RH1911-2GA31 be used with motor contactors?

The Siemens 3RH1911-2GA31 is designed for use with Siemens contactor relays. It provides 3 NO and 1 NC contacts for expanding control functions.