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Siemens 3RV1021-4AA10


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  • 2 Year Warranty
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Part Number3RV1021-4AA10
Model #3RV10214AA10
Warranty2 Year
No of Poles3
Overload ProtectionYes
Undervoltage ReleaseYes
Ground Fault DetectionNo
Surge Voltage Resistance6000V
Protection Class IPIP20
Shock Resistance25g / 11 ms
Operating Voltage690V
Operating Power7.5kW
Operating Current16 A
Trip ClassCLASS 10
Mounting TypeScrew and Snap-On mounting onto 25mm standard mounting rail
Depth96 mm
Height97 mm
Width45 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 3RV1021-4AA10 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 3RV1021-4AA10 we also repair a wide range of other Siemens products, 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 3RV1021-4AA10, 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.

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Ask about exchanging your faulty 3RV1021-4AA10 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.

Siemens 3RV1021-4AA10 Overview

The 3RV10214AA10 is a motor starter protector designed for use with three-phase motors rated up to 5.5 kW at 400 VAC. The device is a part of the SIRIUS 3RV2 series of motor starter protectors manufactured by Siemens, a well-known brand in the field of industrial automation and control. These 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.

Description of the Siemens 3RV10214AA10

The 3RV10214AA10 offers comprehensive protection for motors against overloads, short circuits, and phase failures. The device features adjustable overload protection, which allows the user to set the trip current to match the motor's rated current. The overload protection is provided by a thermal-magnetic trip unit, which measures both thermal and magnetic effects in the motor's current to detect overloads and short circuits. The device also features phase-failure protection, which trips the motor starter if any of the three phases is lost. This feature protects the motor from damage due to running on a single-phase supply.

Operational Rating Information  

The 3RV10214AA10 has a rated operational voltage of 690 VAC, which makes it suitable for use in high-voltage applications. The device has a breaking capacity of 50 kA at 400 VAC, which ensures reliable operation even in the event of a fault. The motor starter protector is also equipped with a test function, which allows the user to test the device's tripping function without the need for external test equipment.

Design Features 

The 3RV10214AA10 is designed for easy and flexible installation. The device can be mounted on a standard 35 mm DIN rail, which makes it compatible with most control panel designs. The motor starter protector is also available with a range of enclosures for surface or flush mounting, which provide an IP55 degree of protection against dust and water ingress. The enclosure is made of high-quality plastic material, which ensures durability and long service life.

Functionality Options

The 3RV10214AA10 is also equipped with a variety of accessory options that further enhance its functionality. The device is available with an EMERGENCY STOP rotary operating mechanism, which allows the user to quickly and easily stop the motor in an emergency situation. The rotary operating mechanism is also equipped with a locking feature, which allows the user to secure the device with up to three padlocks when in the OFF position.


The motor starter protector is also compatible with the 3RV2917 infeed system, which provides a convenient means of feeding in and distributing power for a group of several 3RV2 motor starter protectors or complete load feeders with screw and spring-loaded connections in sizes S00 and S0. The system is based on a basic module complete with a lateral infeed (3-phase busbar with infeed), which can be mounted on the right or left, depending on the version.

FAQs for Siemens 3RV1021-4AA10 Contactors

Q: What is the size of the Siemens 3RV1021-4AA10 contactor?

A: The Siemens 3RV1021-4AA10 contactor is categorized as Size S0.

Q: How many poles does the 3RV1021-4AA10 contactor have?

A: The 3RV1021-4AA10 contactor has three poles.

Q: Does the 3RV1021-4AA10 contactor feature overload protection?

A: Yes, the 3RV1021-4AA10 contactor comes equipped with overload protection.

Q: Is there an Undervoltage release feature in the 3RV1021-4AA10 contactor?

A: Yes, the 3RV1021-4AA10 contactor includes an undervoltage release.

Q: Does the 3RV1021-4AA10 contactor have ground fault detection capabilities?

A: No, the 3RV1021-4AA10 contactor does not feature ground fault detection.

Q: What is the surge voltage resistance of the 3RV1021-4AA10 contactor?

A: The 3RV1021-4AA10 contactor has a surge voltage resistance of 6000V.

Q: What is the protection class rating of the 3RV1021-4AA10 contactor?

A: The 3RV1021-4AA10 contactor has a protection class rating of IP20.

Q: What is the shock resistance rating of the 3RV1021-4AA10 contactor?

A: The shock resistance of the 3RV1021-4AA10 contactor is 25g / 11 ms.

Q: What are the operating voltage and current specifications of the 3RV1021-4AA10 contactor?

A: The 3RV1021-4AA10 contactor operates at a voltage of 690V and a current of 16 A.

Q: What is the trip class of the 3RV1021-4AA10 contactor?

A: The trip class of the 3RV1021-4AA10 contactor is CLASS 10.

Q: How is the 3RV1021-4AA10 contactor mounted?

A: The 3RV1021-4AA10 contactor is mounted using screw and snap-on mounting onto a 25mm standard mounting rail.

Q: What are the dimensions of the 3RV1021-4AA10 contactor?

A: The 3RV1021-4AA10 contactor has dimensions of 96 mm (depth), 97 mm (height), and 45 mm (width).

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, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 3RV1021-4AA10, 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 3RV1021-4AA10 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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