steve
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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
3 months ago
3RH2911-1FA40
Siemens 3RH2911-1FA40 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RH2911-1FA40 is an auxiliary switch block designed for use with contactor relays and motor control devices in the SIRIUS product line. This front-mounted switch block features 4 Normally Open (NO) current paths, with each path consisting of 1 NO contact. Engineered for reliability and durability, the 3RH2911-1FA40 is capable of withstanding up to 10,000,000 mechanical operating cycles and 200,000 electrical operating cycles at AC-15 and 230V. With an IP20 protection rating on the front, this switch block is suitable for use in various industrial environments. The screw terminals allow for easy and secure connections, accommodating conductor cross-sections of 2x (0.5 ... 1.5 mm²) and 2x (0.75 ... 2.5 mm²) for auxiliary contacts. The 3RH2911-1FA40 also meets safety standards for mirror contacts according to IEC 60947-4-1 and positively driven operation according to IEC 60947-5-1.
What is the protection class IP of this Siemens auxiliary switch block?
The protection class IP on the front of the Siemens 3RH2911-1FA40 auxiliary switch block is IP20.
What is the ambient temperature range for storage and operation of this part?
The ambient temperature range for storage of the Siemens 3RH2911-1FA40 is -55°C to +80°C, and for operation, it is -25°C to +60°C.
What is the mechanical service life of this auxiliary switch block?
The mechanical service life of the Siemens 3RH2911-1FA40 is typically 10,000,000 switching cycles.
What is the electrical endurance of this part?
The electrical endurance of the Siemens 3RH2911-1FA40 at AC-15 and 230V is typically 200,000 switching cycles.
What is the contact reliability of this auxiliary switch block?
The contact reliability of the Siemens 3RH2911-1FA40 is one incorrect switching operation of 100 million switching operations (17V, 1mA). The contact reliability of the auxiliary contacts is 1 faulty switching per 100 million (17V, 1mA).
What is the insulation voltage and surge voltage resistance of this part?
The insulation voltage of the Siemens 3RH2911-1FA40 with degree of pollution 3 is rated at 690V, and its surge voltage resistance is rated at 6kV.
How many NC contacts does this auxiliary switch block have?
The Siemens 3RH2911-1FA40 auxiliary switch block has 0 NC (normally closed) contacts for auxiliary contacts.
- Motor control and protection in industrial automation systems
- Auxiliary switching in contactor relays for control circuits
- Safety interlock systems in machinery and equipment
- Pump and fan control in HVAC systems
- Conveyor system control and monitoring
- Lighting control in commercial and industrial settings
- Backup power supply switching in critical applications
- Control and monitoring of power distribution systems
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
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.
5 months ago
Jerry Schrink
Tom Higgins provided amazing service
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!
5 months ago
Paulo Pereira
Excellent service and communication…
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!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
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!
6 months ago
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