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Siemens 3RH2911-1GA04

auxiliary switch, on the front, 4 NC, 51/52, 61/62, 71/72, 8
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The Siemens SIRIUS auxiliary switch 3RH2911-1GA04 is a reliable front-mounted add-on designed for precise signaling and control in industrial automation systems. As part of the proven SIRIUS range, this auxiliary contact block supports dependable operation in demanding electrical environments.

Equipped with four normally closed (NC) contacts with contact designations 51/52, 61/62, 71/72 and 81/82, this auxiliary switch ensures clear and consistent feedback of switching states. The screw terminal connection allows for secure and maintenance-friendly wiring, making it suitable for control panels and switchgear assemblies.

The auxiliary switch is physically coded and can only be combined with Siemens contactor relays 3RH2140 and 3RH2440, ensuring correct installation and system compatibility in accordance with EN 50011. With its compact dimensions of 5.90 x 4.10 x 5.50 cm, it integrates easily into space-efficient designs.

Ideal for OEMs, panel builders and industrial maintenance professionals, the Siemens 3RH2911-1GA04 auxiliary contact provides long-term reliability, standardized connections and seamless integration within SIRIUS control systems.

auxiliary switch, on the front, 4 NC, 51/52, 61/62, 71/72, 81/82, current path: 1 NC, 1 NC, 1 NC, 1 NC, screw terminal, physically coded, only with contactor relays 3RH2140 and 3RH2440 combinable (according to EN 50011)
General
Manufacturer:
Siemens
Range:
Sirius
PLM
Product phase:
Active
Logistics
Dimensions (cm):
5.90 x 4.10 x 5.50
Weight:
0.05kg
Commodity Code:
85365080
Export Control Regulations (ECCN):
N
EAN:
4011209829268
When you choose JCertified refurbished electronics, you save on water, raw materials, and CO₂ needed for the production of new electronics. Check below to see exactly how much you save with this specific refurbished product:
CO2 eq
-63%
Resource use minerals and metals
-89%
Water use
-57%
Why should I choose JC-Electronics?
You can rely on a stock of 300,000 pieces of industrial electronics from leading top-quality brands, both new and refurbished. Therefore, you can also find drives, PLCs, HMIs, and industrial PCs that are no longer produced with us. You always get a 2-year warranty. Additionally, refurbished products are circular, helping you reduce your ecological footprint.  Good to know: New products and tested refurbished products ordered before 16:00 CET are shipped the same day.
Why can I trust refurbished electronics from JC-Electronics?
All products are thoroughly cleaned, defects are repaired, and weak elements are proactively replaced. If they pass the endurance test, the products can be sold. You can recognize them by the JCertified warranty seal. The entire process has received the RecQ quality mark from DEKRA and the ISO14001:2015 certificate
How much warranty do I get on a product?
You always get a 2-year warranty on products, both refurbished and new. This is twice as much as the standard factory warranty from many manufacturers.
Are all products available from stock immediately?
New and tested refurbished products from our stock are always available immediately. Untested and non-refurbished products undergo a thorough refurbishment and an extensive testing procedure before shipment.
Can I order products urgently?
Yes, you can. New and refurbished products that are ready for shipment will be dispatched the same day if the order is received before 16:00 CET. An express shipment to the Netherlands, Belgium, Luxembourg, Germany, Austria, Switzerland, France, or Italy will arrive the next day. An express shipment to other countries in the European Union takes 2 days. An express shipment to countries outside the European Union takes 3 days. 
Can I have products repaired urgently?
 Yes, you can. With an urgent repair, your product will be repaired within 3 working days. Contact the Sales team via sales@jc-electronics.com for this.
Can I buy on account at JC-Electronics?
Yes, under certain conditions. Contact the Sales team via sales@jc-electronics.com for more information.
Why should I buy refurbished electronics?
There are several reasons to purchase a refurbished product. For example, because electronics are no longer made and are hard to get new. But also because refurbished is a sustainable choice, reducing your organization's ecological footprint. Whatever the reason, you always get a 2-year warranty on both refurbished and new electronics at JC-Electronics.