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3RH2122-2KB40
Siemens 3RH2122-2KB40 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
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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.
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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 3RH2122-2KB40 is a coupling contactor relay designed for reliable and efficient operation in various industrial applications. This robust part is known for its high mechanical operating cycles, with the contactor capable of a typical 30,000,000 operations. It features an auxiliary switch block that can handle an impressive 10,000,000 operations, and when paired with an electronics-compatible auxiliary switch block, it can manage up to 5,000,000 operations. The 3RH2122-2KB40 operates with a DC control feed voltage and includes a suppressor diode for surge protection. Its control supply voltage for DC is rated at 24V, and it has an operating range factor control supply voltage rated value of the magnet coil for DC between 0.7 and 1.25. The holding power of the solenoid for DC is 4W, and the pull-in power is 13W. This Siemens relay also features a closing delay of 30 to 100ms at DC and an opening delay of 25 to 90ms at DC, with an arcing time of 10 to 15 seconds. The auxiliary circuit of the 3RH2122-2KB40 includes one NC contact and two NO contacts for auxiliary contacts with instantaneous switching. Designed for durability and performance, the Siemens 3RH2122-2KB40 coupling contactor relay is an excellent choice for your industrial control needs.
Typical applications
- Used in industrial automation systems for controlling and switching electrical circuits.
- Commonly utilized in railway applications due to its robust design and high shock resistance.
- Often integrated into control panels for machinery and equipment to manage auxiliary circuits.
- Frequently employed in safety-related applications due to its positively driven operation.
- Suitable for use in environments with a high degree of pollution, thanks to its IP20 protection rating.
- Ideal for applications requiring a high number of mechanical operating cycles.
- Used in systems that require a high insulation voltage, with a rated value of 690V.
- Appropriate for use in systems operating in a wide range of ambient temperatures, from -40°C to +70°C.
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"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."
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"Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping. "
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Full 12-month warranty
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