Skip to product information

3RV2021-4NA10

In Stock
Regular price $113.35
Sale price $113.35 Regular price


  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed

Have a target price? No worries, submit your target price below


Overview of Siemens 3RV2021-4NA10

Buy genuine Siemens 3RV2021-4NA10 online today for your automation system. The Siemens 3RV2021-4NA10 is a premium motor protection circuit breaker designed for reliable overload and short-circuit protection in industrial environments. As part of the SIRIUS 3RV2 series, this device offers robust performance with a trip class of 10, making it ideal for applications requiring fast response to motor overloads. Featuring a compact S0 size and screw terminal connections, the 3RV2021-4NA10 is easy to install on standard DIN rails and integrates seamlessly into control panels. Its phase failure detection and high breaking capacity ensure dependable motor protection, while the adjustable current range (23–28 A) provides flexibility for a wide range of motor loads. Whether you're upgrading an existing system or building a new automation setup, the Siemens 3RV2021-4NA10 delivers factory-grade reliability and safety.

Key Features of Siemens 3RV2021-4NA10

  • Motor protection circuit breaker with overload and short-circuit protection
  • Adjustable current range: 23–28 A for flexible motor sizing
  • Class 10 trip characteristics for fast overload response
  • Phase failure detection for enhanced system safety
  • High breaking capacity: up to 100 kA at 240 V AC
  • Screw terminal connections for secure wiring
  • Compact S0 size for DIN rail mounting
  • Compatible with optional auxiliary contacts for signaling and control
  • UL/CSA certified for use in North American applications
  • Robust design for industrial automation environments

Technical Specs of 3RV2021-4NA10

Explore Siemens 3RV2021-4NA10 technical data for detailed parameters before installation.

Parameter Value
Current Range 23–28 A
Short-Circuit Trip 364 A
Breaking Capacity (Icu) 100 kA @ 240 V AC
Operating Voltage 220–690 V AC
Mounting DIN rail
Size S0
Protection Class Class 10
Phase Failure Detection Yes
Terminals Screw

Applications / Use Case

This Siemens 3RV2021-4NA10 is commonly used in industrial automation worldwide. It is ideal for protecting motors in factory control panels, production line systems, and packaging and conveyor operations. Its robust design and reliable protection features make it a top choice for engineers and maintenance teams seeking to safeguard critical equipment from overload and short-circuit faults. Whether you need a motor protection solution for a new installation or a replacement for an existing system, the 3RV2021-4NA10 offers proven performance in demanding environments.

Price & Availability

Check Siemens 3RV2021-4NA10 price online through LeadTime.ca for fast worldwide dispatch.

Why Order from LeadTime.ca

All product on LeadTime.ca is genuine, supplied by trusted distributors, and available for worldwide shipping. Order now for worldwide delivery.

Related Resources

3RV2021-4NA10

$113.35

  • ACHIEVING

    4.0

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    1%

    return rate

Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

Questions about this product?
Don't be a stranger.