"Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime"
3RH2911-1FA22 Siemens
Based on over 4900 reviews
Adding another part to your enquiry?
After submitting this form, you can add additional part numbers and quantities using the quote builder on the next page. A member of our team will then be in touch to discuss your quote.
Key specifications
Manufacturer
Siemens
HS code
85365080
Ship to
United Arab Emirates
Availability
8027 remaining
Express delivery to your country
Full 12-month warranty
Secure payment process
What happens next?
From enquiry to delivery, we keep it simple.
Submit your enquiry
Tell us what you need using the form above and we'll manage your procurement needs with speed and care.
Confirmation and sourcing
An account manager will contact you within a few hours and use our unique parts database to find your components at a competitive price.
Receive your quote
Your account manager will provide a tailored quote outlining availability and delivery dates.
Place your order
Your order ships quickly from one of our global logistics hubs, with updates provided every step of the way.
The Siemens 3RH2911-1FA22 is a meticulously engineered auxiliary switch designed to enhance the functionality of contactor relays and power contactors. This switch is a vital component for industrial control systems, offering a reliable solution for various switching operations. With a configuration of 2NO/2NC (2 Normally Open and 2 Normally Closed) contacts, it provides flexibility for a wide range of circuit designs. Crafted for durability, the 3RH2911-1FA22 boasts an impressive mechanical service life, capable of up to 10 million switching cycles, ensuring longevity and consistent performance in demanding industrial environments. Its electrical endurance is equally robust, with a typical rating of 200,000 switching cycles at AC-15 at 230V. The switch operates efficiently within a broad ambient temperature range, from -25°C to +60°C during operation, and can withstand storage temperatures from -55°C to +80°C, making it suitable for various climatic conditions. The unit is designed with a protection class of IP20 on the front, safeguarding the internal components from solid objects larger than 12.5mm. With an insulation voltage rated at 690V and a surge voltage resistance of 6kV, the 3RH2911-1FA22 ensures safe and reliable isolation between the power and auxiliary circuits. The switch's contact reliability is exceptional, with a low probability of faulty switching, thus providing peace of mind for critical applications. The compact and intuitive design allows for snap-on mounting, facilitating easy installation and maintenance. The screw-type terminals provide a secure and straightforward connection for auxiliary and control current circuits. In summary, the Siemens 3RH2911-1FA22 auxiliary switch is a versatile and dependable choice for enhancing control systems, offering both reliability and ease of use for industrial applications.
Typical applications
- Control and monitoring of electrical circuits in industrial automation systems
- Extension of contactor relay and power contactor functionalities
- Use in control panels for switching and signalling purposes
- Integration into motor control centres for auxiliary switching
- Implementation in safety and interlock circuits
- Application in conveyor systems for start/stop operations
- Utilisation in HVAC systems for controlling fans, pumps, and compressors
- Deployment in manufacturing lines for automation control
- Inclusion in packaging machinery for precision control tasks
- Installation in electrical distribution systems for auxiliary feedback signals
Need more information?
Our global network and dedicated team act fast to keep your supply chain moving.
Contact usCan't find what you're looking for?
Find answers, guidance and resources to help you get the most out of our services.
Support centreOrder and delivery information
Need more information?
Our global network and dedicated team act fast to keep your supply chain moving.
Contact usCan't find what you're looking for?
Find answers, guidance and resources to help you get the most out of our services.
Support centreSupporting new and legacy automation
Whether you're maintaining existing equipment or sourcing parts for current systems, we provide fast, dependable supply you can rely on.
50+ account managers available now
What our customers say
"Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times."
"Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!"
"Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!"
"Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping. "
"Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges! "
Related parts
FAQs
Your parts delivered, hassle free
We take care of the logistics so you don't have to. From customs documentation to real-time tracking, our service ensures your parts arrive on time, every time. Reliable, straightforward delivery you can trust.
Full 12-month warranty
ISO 9001:2015 certified
Swift global delivery
"The prompt delivery knowing it was urgent was amazing! We are confident when EU Automation says they will try to ship as soon as possible they really mean it. Our company will definitely use them again. Service is astounding."
Courtney Zeinert
Facilities Manager
Speak to our team
Whether you need advice or help finding the right part, our team is available to assist and keep your operations running smoothly.