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3RV2021-4NA10
Siemens 3RV2021-4NA10 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
We deliver worldwide
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2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
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All orders are subject to product availability. See our T&Cs.
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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 reliable and efficient circuit breaker designed for motor protection in various industrial applications. This size S0 circuit breaker offers a compact and robust solution for safeguarding motors and preventing damage caused by short circuits, overloads, and phase failures. With a screw and snap-on mounting system, it can be easily installed onto a 35mm standard mounting rail according to DIN EN 60715. The 3RV2021-4NA10 features a height of 97mm, width of 45mm, and depth of 97mm, ensuring minimal space requirements in your control panel. The device is equipped with screw-type terminals for main current circuit connections, providing secure and reliable connections for a range of conductor cross-sections. Designed with safety in mind, the 3RV2021-4NA10 offers a high level of protection and durability, making it an essential component for maintaining the smooth operation of your motor-driven systems.
| Specification | Description |
|---|---|
| Part Number | 3RV2021-4NA10 |
| Alternative Part Number | 3RV20214NA10 |
| Manufacturer | Siemens |
| Category | Circuit Breaker |
| Size | S0 |
| Motor Protection | Yes |
| Rated Current | Adjustable from 28 A to 40 A |
| Rated Operational Voltage | Up to 690 V |
| Rated Insulation Voltage | 690 V |
| Rated Impulse Withstand Voltage | 6 kV |
| Short Circuit Breaking Capacity | 100 kA at 400 V, 50 kA at 500 V, 25 kA at 690 V |
| Tripping Class | CLASS 10 |
| Number of Poles | 3 |
| Mounting Type | Screw and Snap-On Mounting |
| Terminal Type | Screw Terminals |
| Operating Temperature Range | -25°C to +60°C |
| Standards and Certifications | IEC/EN 60947-2, IEC/EN 60947-4-1, CE, UL, CSA, KTL, CCC, EAC, and other approvals |
| Dimensions | 45 mm x 97 mm x 96 mm (W x H x D) |
What is the main function of this circuit breaker?
The Siemens 3RV2021-4NA10 is a circuit breaker size S0 designed for motor protection. It helps protect motors from overloads, short circuits, and phase failures.
What are the dimensions of this circuit breaker?
The dimensions of the 3RV2021-4NA10 circuit breaker are 97 mm in height, 45 mm in width, and 97 mm in depth.
What type of electrical connections does this circuit breaker have?
The 3RV2021-4NA10 circuit breaker has screw-type terminals for the main current circuit, with the arrangement of electrical connectors for the main current circuit at the top and bottom.
What is the required spacing for this circuit breaker?
The required spacing for the 3RV2021-4NA10 circuit breaker depends on the voltage level. For example, at 400 V, the required spacing is 30 mm downwards, upwards, and at the side for both grounded and live parts.
What type of conductor cross-sections can be connected to this circuit breaker?
The 3RV2021-4NA10 circuit breaker can be connected to solid or stranded conductors with cross-sections of 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²), and finely stranded conductors with core end processing of 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), and 1x 10 mm².
What is the tightening torque for the main contacts?
The tightening torque for the main contacts of the 3RV2021-4NA10 circuit breaker with screw-type terminals is 2 to 2.5 N·m.
What is the B10 value of this circuit breaker?
The B10 value of the 3RV2021-4NA10 circuit breaker with a high demand rate according to SN 31920 is 5,000.
- Motor protection in industrial automation systems
- Overload and short-circuit protection for motors and drives
- Integration with control panels and switchgear assemblies
- Use in hazardous locations requiring certified equipment
- Railway and marine applications requiring certified components
- Protection of pumps, fans, and other rotating equipment
- Ensuring safe and reliable operation of machinery and equipment
- Preventing damage to electrical systems due to overloads and short-circuits
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.
Delivery
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Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
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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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