Siemens 3RV1021-0HA10

Siemens 3RV1021-0HA10 – Precision Motor Protection in a Compact Package

The Siemens 3RV1021-0HA10 is a high-precision motor protection circuit breaker (MPCB) designed to safeguard motors and electrical systems from overload, short circuit, and phase loss conditions. Rated for 0.55–0.8 amps, this 3-pole breaker is perfect for low-current motor applications that demand consistent protection and reliable switching. Supporting system voltages from 400 to 690 VAC, it ensures safe operation in a wide range of industrial environments.

Compact Size with Powerful Protection Features

Part of Siemens' trusted SIRIUS line, the 3RV1021-0HA10 combines advanced protection capabilities in a compact, space-saving form factor. Its design makes it ideal for use in control panels, motor control centers (MCCs), and distributed systems where panel real estate is limited. The device provides fast, effective disconnection in the event of overload or short circuit, helping prevent costly downtime and equipment damage.

Reliable Overload and Short Circuit Protection

This MPCB offers thermal overload protection and magnetic trip for short-circuit conditions, maintaining safe operation in both start-up and continuous load situations. The adjustable trip range of 0.55 to 0.8 amps allows it to protect small motors accurately, whether they're used in conveyors, pumps, HVAC fans, or other light-duty industrial equipment.

3-Pole Design for Three-Phase Systems

Designed for three-phase AC motor systems, the 3RV1021-0HA10's 3-pole configuration ensures balanced protection across all power lines. With a voltage rating of 400–690 VAC, it fits seamlessly into standard industrial power networks, both in North America and internationally.

Easy Installation and Integration

The 3RV1021-0HA10 features screw terminal connections and standard DIN rail mounting, allowing for quick installation and easy maintenance. It integrates effortlessly with Siemens contactors, accessories, and overload relays, helping streamline your control system build or retrofit.

Immediate Availability with Warranty and Free Shipping

The Siemens 3RV1021-0HA10 is in stock now at MRO Electric and Supply and ready for immediate shipment. When you purchase from MRO, you get more than just fast delivery—you also receive a 2-year warranty and free shipping, ensuring value, protection, and dependable service with every order.

Built for Industrial Demands

Backed by Siemens' reputation for quality and durability, this motor protection circuit breaker is built to withstand demanding environments. Whether you're a panel builder, OEM, or maintenance technician, the 3RV1021-0HA10 offers trusted protection for your small motors and sensitive loads.

Choose the Siemens 3RV1021-0HA10 for accurate motor protection, compact design, and immediate availability, supported by MRO Electric's expertise and responsive customer service.

Frequently Asked Questions

What is the Siemens 3RV1021-0HA10 used for?

It's a motor protection circuit breaker designed to protect motors from overload and short circuits in low-current applications.

What is the current range of this device?

The adjustable trip range is 0.55 to 0.8 amps, ideal for protecting small motors.

What is the voltage rating of this MPCB?

It supports 400 to 690 VAC, suitable for standard three-phase power systems.

How many poles does this breaker have?

The unit has a 3-pole configuration for three-phase motor protection.

Does it offer both overload and short-circuit protection?

Yes, it includes thermal and magnetic trip mechanisms for complete motor protection.

Is it compatible with Siemens SIRIUS accessories?

Yes, it integrates with SIRIUS contactors, signaling units, and accessories.

Can it be mounted on a DIN rail?

Yes, the breaker is DIN rail mountable for easy panel installation.

Is the Siemens 3RV1021-0HA10 in stock?

Yes, it is immediately available from MRO Electric with fast shipping.

Does it come with a warranty?

Yes, MRO Electric provides a full 2-year warranty with this product.

Is free shipping included with the order?

Yes, free shipping is offered when you order this circuit breaker from MRO Electric.

Siemens products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. They come with a 2-year warranty from MRO Electric. We also carry Contactors from other manufacturers such as FANUC and Yaskawa.

Contact Us Today For More Information About Siemens Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 3RV1021-0HA10, take a look at more from our Contactors line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 3RV1021-0HA10 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.