Siemens
Siemens 3RH1911-1GA40 Auxiliary Switch Block - 4NO
Siemens 3RH1911-1GA40 4-pole auxiliary switch block with 4 NO.
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12-month warranty
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Same-day dispatch
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Veteran-owned
CAGE: 9NK75
4 Normally Open (NO) contacts
Screw terminals for secure wiring
Designed for 4-pole contactor relays
Compliant with EN 50011 standard
Robust design for industrial environments
Product description
The Siemens 3RH1911-1GA40 is a 4-pole auxiliary switch block for contactor relays, featuring 4 normally open (NO) contacts. It utilizes screw terminals for secure connections and adheres to EN 50011 standards.
This auxiliary switch is ideal for applications requiring multiple NO contacts for initiating circuits, control signaling, or interlocking functions in automation systems. It is widely applied in manufacturing, machine building, and control panel construction.
Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3RH1911-1GA40. We provide reliable access to essential components to keep your industrial operations running.
Technical specifications
| Contacts | 4 NO |
| Terminal Type | Screw |
| Standard | EN 50011 |
| Poles | 4 |
Common applications
Control relays
Automation systems
Motor control
Signaling circuits
Machine control panels
Compatible systems
Siemens 3RH1 series contactor relays
Also known as
Siemens 3RH1911-1GA40 auxiliary contact
Siemens 4-pole auxiliary switch
3RH1911-1GA40 switch block
Replaces / compatible with
This auxiliary switch block is a phased-out product. The preferred successor is the SIRIUS 3RH2911-1GA40. It is designed for use with Siemens contactor relays.
Technical note
Expert tip
This auxiliary switch is a discontinued model. The preferred replacement is the SIRIUS 3RH2911-1GA40, part of the newer 3RH2 series.What happens next?
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Frequently asked questions
What is the contact type and quantity on the Siemens 3RH1911-1GA40 auxiliary switch block?
The Siemens 3RH1911-1GA40 auxiliary switch block is equipped with four normally open (NO) contacts. This configuration is useful for applications that require multiple circuits to be closed simultaneously.