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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
3RH2911-1FB22
Siemens 3RH2911-1FB22 available at EU Automation. Get in touch today for a quick price.
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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 3RH2911-1FB22 auxiliary switch is a versatile and reliable component designed for seamless integration with contactor relays and power contactors. Crafted to enhance the functionality of your control systems, this auxiliary switch block features a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing flexibility for various circuit designs.
With a robust construction that ensures a mechanical service life of approximately 10 million switching cycles, the 3RH2911-1FB22 is built to last, even in demanding industrial environments. Its electrical endurance is equally impressive, with an estimated 200,000 switching cycles at AC-15 at 230V, highlighting its durability and reliability for continuous operation.
The switch operates efficiently within a broad ambient temperature range, from as low as -25°C to as high as +60°C, ensuring consistent performance under varying conditions. The unit's insulation voltage is rated at 690V with a degree of pollution 3, and it boasts a surge voltage resistance of 6kV, providing additional protection against electrical disturbances.
Installation is straightforward, thanks to its snap-on mounting design, which allows for quick and easy attachment to the front of compatible devices. The switch's dimensions are compact, with a width of 36mm, height of 37.5mm, and depth of 43.7mm, making it a space-saving solution for your control panels.
The 3RH2911-1FB22 auxiliary switch is a testament to Siemens' commitment to quality and innovation, offering a reliable solution for enhancing control circuit functionality and operational efficiency in a variety of industrial applications.
With a robust construction that ensures a mechanical service life of approximately 10 million switching cycles, the 3RH2911-1FB22 is built to last, even in demanding industrial environments. Its electrical endurance is equally impressive, with an estimated 200,000 switching cycles at AC-15 at 230V, highlighting its durability and reliability for continuous operation.
The switch operates efficiently within a broad ambient temperature range, from as low as -25°C to as high as +60°C, ensuring consistent performance under varying conditions. The unit's insulation voltage is rated at 690V with a degree of pollution 3, and it boasts a surge voltage resistance of 6kV, providing additional protection against electrical disturbances.
Installation is straightforward, thanks to its snap-on mounting design, which allows for quick and easy attachment to the front of compatible devices. The switch's dimensions are compact, with a width of 36mm, height of 37.5mm, and depth of 43.7mm, making it a space-saving solution for your control panels.
The 3RH2911-1FB22 auxiliary switch is a testament to Siemens' commitment to quality and innovation, offering a reliable solution for enhancing control circuit functionality and operational efficiency in a variety of industrial applications.
| Specification | Description |
|---|---|
| Part Number | 3RH2911-1FB22 |
| Alternative Part Number | 3RH29111FB22 |
| Manufacturer | Siemens |
| Product Type | Auxiliary Switch |
| Suitable Applications | Contactor Relay and Power Contactor |
| Protection Class | IP20 on the front |
| Ambient Operating Temperature | -25 to +60 °C during operation |
| Storage Temperature | -55 to +80 °C |
| Mechanical Service Life | Typical 10,000,000 switching cycles |
| Electrical Endurance | Typical 200,000 switching cycles at AC-15, 230 V |
| Contact Reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Insulation Voltage | Rated value of 690 V with degree of pollution 3 |
| Surge Voltage Resistance | Rated value of 6 kV |
| Auxiliary Circuit Contacts | 2 Normally Open (NO) + 2 Normally Closed (NC) |
| Mounting Type | Snap-on mounting |
| Dimensions (W x H x D) | 36 mm x 37.5 mm x 43.7 mm |
| Electrical Connection | Screw-type terminals |
| Connectable Conductor Cross-Sections | For auxiliary contacts: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) solid or stranded with wire end processing |
| Approvals | CE, UL, CSA, CCC |
What is the function of this auxiliary switch?
The auxiliary switch is designed to be snapped onto the front of contactor relays and power contactors, providing additional switching functions. It is commonly used to indicate the status of the main contactor or to switch a separate circuit in a control system.
Can you describe the protection class of this auxiliary switch?
This auxiliary switch has a protection class of IP20, which means it is protected against solid objects larger than 12.5mm but is not protected against water.
What are the ambient temperature limits for operating this auxiliary switch?
The auxiliary switch can operate within an ambient temperature range of -25 to +60 degrees Celsius during operation, and it can be stored in temperatures ranging from -55 to +80 degrees Celsius.
How many mechanical operating cycles can this auxiliary switch withstand?
The auxiliary switch is rated for typically 10 million mechanical operating cycles, indicating its durability and longevity in repetitive use.
What is the electrical endurance of this auxiliary switch at AC-15 at 230 V?
At AC-15 at 230 V, the auxiliary switch has an electrical endurance of typically 200,000 switching cycles.
What is the contact reliability of the auxiliary contacts?
The auxiliary contacts have a contact reliability of one faulty switching operation per 100 million operations at 17 V, 1 mA, which demonstrates a high level of reliability in low voltage applications.
What is the insulation voltage rating for this auxiliary switch?
The insulation voltage rating for the auxiliary switch is 690 V, with a degree of pollution 3, ensuring it can safely isolate in higher voltage environments.
What is the impulse voltage resistance of this auxiliary switch?
The auxiliary switch has an impulse voltage resistance rated value of 6 kV, which indicates its ability to withstand transient voltage spikes.
What are the dimensions required for mounting this auxiliary switch?
The auxiliary switch requires a width of 36 mm, a height of 37.5 mm, and a depth of 43.7 mm for mounting.
What type of electrical connection does this auxiliary switch use?
This auxiliary switch uses screw-type terminals for its electrical connections, which are suitable for a range of conductor cross-sections and provide a secure connection.
- Control and monitoring of electrical circuits in industrial automation systems
- Expansion of contactor relay and power contactor functionalities
- Use in control panels for motor control centers
- Integration into safety and interlock circuits
- Application in signalling circuits for system status indication
- Implementation in HVAC control systems for auxiliary switching
- Utilisation in conveyor systems for start/stop operations
- Deployment in packaging machinery for precision control
- Inclusion in manufacturing equipment for sequential operations
- Installation in electrical distribution systems for auxiliary contacts
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!
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Paulo Pereira
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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
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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
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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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