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G120P Inverter Line-side Power Components - Circuit Breaker


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2 Year warranty
Part Number3RV1021-1CA10
Model #3RV10211CA10
Warranty2 Year
Part Number3RV1021-1CA10
Warranty2 year
Module designationcircuit breaker
Production made formotor protection
Auxiliary switch Yes
Total typical power loss6 W
Rated soltage surge resistance value6000 V
IP Class protectionIP20
Resistance (shock)25g/11ms
Altitue max (above sea level)2000 m
Ambient operation temp-20 ... +60 °C
Ambient storage temp-50 ... +80 °C
Height97 mm
Width45 mm
Depth96 mm

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed 3RV1021-1CA10 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2 year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 3RV1021-1CA10 we also repair drives, motors, PLCs and more, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 3RV1021-1CA10, just let us know and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 1lb

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Ask about exchanging your faulty 3RV1021-1CA10 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Additional Information

Manufactured by a premium manufacturer that has dominated the automation industry for years, this Siemens motor starter protector is part of a world-class line of Siemens modules made to deliver quality and satisfaction. What should you look for when looking for the right motor starter? A quality motor starter will meet worldwide requirements as does the Siemens module 3RV1021-1CA10 which is manufactured meeting the application requirements of the industry.

The motor starter protector features a manual ON/OFF switch to ensure it is in the proper mode. It comes standard with an overload relay. It is a Class 10 relay. To ensure protection from any possible short circuit in your system, this module comes with a magnetic trip component.

Frame size is an excellent way to be informed that you are choosing the correct motor starter protector. The frame size for this module is a width of 45 mm. Current is another consideration when choosing the right motor starter protector. It must match your use of motors in your automation line. This unit has a current rate that is not rated to exceed the maximum which is25 Amps. This motor starter protector is made for motor modules that are using up to 20 hp at 600V.

Siemens delivers Class 10 protection from over currents by making use of a bimetallic heater element. The overcurrent protection extends to both AC motors and DC motors. How does this work exactly? The heaters use their bimetallic capabilities to directly sense the motor current. This renders the current insensitive to several problems that may happen as a result of common current fluctuations. It loses sensitivity to high frequencies and harmonic waves as well as sinusoidal currents and voltages.

Ambient temperature has also been considered and the issue of negative reactions has been dealt with by the use of a fourth strip. This fourth strip is also made to be bimetallic and its job is to be responsible for ambient temperature. As a matter of fact, it only reacts to the control panel’s ambient temperature. It then compensates for the change in temperature by preventing the unit from tripping if it detects that the temperature in the panel is higher than the motor’s ambient temperature. That is the kind of protection that keeps your automation line up and running and keeps you from overheating your motor.

Another safety precaution taken is the use of a feature on the module that is built into the unit. It is a differential trip bar. The differential trip bar will cause the motor starter protector to trip faster when necessary, like in the instance of a phase loss condition. This will bring down any possible damages to your motor if there is an accidental phase loss.

Another precaution taken for this motor starter unit is the magnetic trip elements. The magnetic trip elements are in each of the motor starter protectors and what it does to help you is to take the device offline in the case of a current crisis. Any time there is a current that is 12 times the maximum FLA dial setting it immediately goes offline to protect you and your automation line from distress.

This module comes with a two-year warranty.

Product Description

The 3RV1021-1CA10 is a

G120P Inverter Line-side Power Components - Cir... that is manufactured by Siemens. These products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. All of the products come with a 2 year warranty from MRO Electric. We also carry Contactors from other manufacturers such as FANUC and Yaskawa.

Related 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 sending us an email at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 3RV1021-1CA10, 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 3RV1021-1CA10 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.

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