steve
Got hold of Sime for a Carrier card for…
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
1 month ago
3RV2021-4NA10
Siemens 3RV2021-4NA10 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 3RV2021-4NA10 is a robust circuit breaker designed for motor protection, ensuring the safe and efficient operation of machinery in various industrial settings. This three-pole device is engineered to provide class 10 protection, with an adjustable release range of 23 to 28 A, and a non-delayed short-circuit release of 364 A. Its compact dimensions, 45 x 96.9 x 97 mm, allow for convenient installation in space-constrained environments.
Crafted for durability, the 3RV2021-4NA10 boasts a mechanical service life of 100,000 operating cycles, making it a reliable choice for long-term use. The circuit breaker operates effectively within a voltage rating of up to 690 V ac and is capable of handling motor power up to 20 hp at 460/480 V, which translates to a robust performance for a wide range of motor applications.
Installation is made straightforward with screw and snap-on mounting options onto a 35 mm standard mounting rail according to DIN EN 60715, allowing for flexibility in various mounting positions. The device also features screw-type terminals for secure and reliable electrical connections.
The Siemens 3RV2021-4NA10 is designed with safety in mind, offering finger-safe protection and an IP20 rating on the front, ensuring protection against solid objects and accidental contact. Its operational reliability is further enhanced by its ability to function optimally within a broad temperature range and at installation altitudes of up to 2000 metres above sea level.
This circuit breaker is an essential component for industrial professionals seeking a dependable solution for motor protection that combines performance, safety, and ease of use.
Crafted for durability, the 3RV2021-4NA10 boasts a mechanical service life of 100,000 operating cycles, making it a reliable choice for long-term use. The circuit breaker operates effectively within a voltage rating of up to 690 V ac and is capable of handling motor power up to 20 hp at 460/480 V, which translates to a robust performance for a wide range of motor applications.
Installation is made straightforward with screw and snap-on mounting options onto a 35 mm standard mounting rail according to DIN EN 60715, allowing for flexibility in various mounting positions. The device also features screw-type terminals for secure and reliable electrical connections.
The Siemens 3RV2021-4NA10 is designed with safety in mind, offering finger-safe protection and an IP20 rating on the front, ensuring protection against solid objects and accidental contact. Its operational reliability is further enhanced by its ability to function optimally within a broad temperature range and at installation altitudes of up to 2000 metres above sea level.
This circuit breaker is an essential component for industrial professionals seeking a dependable solution for motor protection that combines performance, safety, and ease of use.
| Specification | Description |
|---|---|
| Part Number | 3RV2021-4NA10 |
| Alternative Part Number | 3RV20214NA10 |
| Manufacturer | Siemens |
| Type | Circuit Breaker |
| Poles | 3 Pole |
| Rated Current | 28 A |
| Rated Voltage | 690 V ac |
| Dimensions | 45 x 96.9 x 97 mm |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| Terminal Type | Screw-type terminals |
| Electrical Endurance | 100,000 switching cycles typical |
| Mechanical Service Life | 100,000 switching cycles typical |
| Operating Temperature Range | -20...+60 °C during operation |
| Storage Temperature Range | -50...+80 °C |
| Short-Circuit Protection | Yes, with magnetic trip |
| Protection Class | IP20 |
| Installation Altitude | Maximum 2,000 m above sea level |
| Relative Humidity | 10...95% during operation |
| Adjustable Pickup Value Current | 23...28 A for the current-dependent overload release |
| Operating Power at AC-3 | - 7,500 W at 230 V - 15,000 W at 400 V - 18,500 W at 500 V - 22,000 W at 690 V |
| Shock Resistance | 25g / 11 ms according to IEC 60068-2-27 |
| Type of Protection | Increased safety |
| Certificate of Suitability | ATEX |
What type of circuit breaker is this?
This is a 3-pole circuit breaker designed for motor protection, belonging to the SIRIUS 3RV2 series. It features a Class 10 overload release and is suitable for use in controlling and protecting motors.
Can this circuit breaker be used in hazardous locations?
Yes, the circuit breaker is designed with safety in mind and has approvals for use in hazardous locations, ensuring compliance with industry safety standards.
What is the rated operating voltage of this circuit breaker?
The rated operating voltage of the circuit breaker is 690 V ac, making it suitable for a wide range of industrial applications.
What is the current adjustment range for the overload release?
The adjustable pick-up value current of the current-dependent overload release ranges from 23 to 28 A, allowing for precise protection settings based on the motor's requirements.
What are the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 45 x 96.9 x 97 mm, which is a compact size that allows for efficient use of space in electrical panels.
Is there a need for additional spacing when mounting this circuit breaker?
When mounting the circuit breaker, it is recommended to maintain a spacing of 50 mm upwards and downwards, and 30 mm at the side for live parts, to ensure proper heat dissipation and safety.
What type of terminal connections does this circuit breaker have?
The circuit breaker is equipped with screw-type terminals for the main current circuit, providing a secure and reliable connection.
Does this circuit breaker have a short-circuit protection function?
Yes, it includes a magnetic short-circuit trip function to protect against short-circuit conditions, enhancing the safety of the electrical system it is integrated into.
What is the mechanical service life of the circuit breaker?
The mechanical service life of the main contacts is typically 100,000 switching cycles, indicating a durable and long-lasting design.
Can auxiliary contacts be added to this circuit breaker?
While the circuit breaker does not come with auxiliary contacts, it does allow for the addition of auxiliary switches, providing flexibility for various control and signalling functions.
- Motor protection in industrial applications
- Safeguarding against short-circuits in electrical circuits
- Overload protection for three-phase motors
- Use in control panels for machinery and plant equipment
- Integration into motor starter combinations
- Protection for transformers and capacitor banks
- Utilised in HVAC systems for compressor motor protection
- Installation in distribution boards for circuit management
- Employed in manufacturing automation systems
- Implementation in conveyor systems for motor safety
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.
3 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!
3 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!
3 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.
3 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!
4 months ago
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