Siemens
Siemens 3RH1911-2GA04 Auxiliary Switch Block (4 NO, 4 NC)
Siemens 3RH1911-2GA04 Auxiliary Switch Block, 4 NO + 4 NC, Spring Terminal.
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12-month warranty
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Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
4 Normally Open Contacts
4 Normally Closed Contacts
Spring-Type Terminals
Attachable to Contactor Relays
Supports 4-Pole Contactors
EN 50011 Compliance
Product description
The Siemens 3RH1911-2GA04 is an auxiliary switch block featuring 4 normally open (NO) and 4 normally closed (NC) contacts. It uses spring-type terminals for connection and is designed for 4-pole Siemens contactor relays.
This auxiliary switch block enhances the functionality of contactor relays by providing additional control and feedback points, essential for complex automation and interlocking circuits in industrial settings.
Stanlo Automation, a veteran-owned surplus parts distributor, provides access to crucial automation components like the Siemens 3RH1911-2GA04. We ensure reliable sourcing for your MRO needs, particularly for obsolete or hard-to-find parts.
Technical specifications
| Type | Auxiliary Switch Block |
| Manufacturer | Siemens |
| Part Number | 3RH1911-2GA04 |
| Contact Configuration | 4 NO + 4 NC |
| Terminal Type | Spring-Type Terminal |
| Application | For Contactor Relays |
| Pole Count | 4-pole |
| Standard | EN 50011 |
Common applications
Interlocking Circuits
Feedback Signals
Automation Systems
Control Panel Wiring
Machine Control
Contactor Relay Accessories
Compatible systems
Designed for use with Siemens SIRIUS 3RH1 series contactor relays and other compatible 4-pole contactors utilizing spring terminal connections.
Also known as
Siemens 3RH1911-2GA04 Auxiliary Contacts
SIRIUS 3RH1911-2GA04
Siemens Contactor Spring Terminal Switch
Replaces / compatible with
This is a phased-out product. The preferred successor is the SIRIUS 3RH2911-2GA04. Please refer to the successor part number for current product details.
Technical note
Expert tip
Ensure the spring terminals are properly engaged with the conductor for a secure and reliable connection.What happens next?
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Frequently asked questions
What is the advantage of spring-type terminals on the Siemens 3RH1911-2GA04?
Spring-type terminals on the Siemens 3RH1911-2GA04 offer a vibration-resistant connection that does not require screw tightening, potentially simplifying installation and maintenance in certain environments.