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Siemens 3RV2031-4EB10 Size S2 Class 20 Motor Protection Circuit Breaker

Siemens 3RV2031-4EB10 Size S2 Class 20 motor protection circuit breaker

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ManufacturerSiemens

Part number3RV2031-4EB10

Size S2

Rated operational current (Ie) 32 A

Adjustment range of overload releases 22...32 A

Actuation type THERMAL

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Motor protection Size S2 Class 20 overload protection Adjustable thermal release Short-circuit protection Screw terminals

Product description

The Siemens 3RV2031-4EB10 is a Size S2 circuit breaker specifically engineered for motor protection, featuring a Class 20 trip characteristic. It offers an adjustable A-release for thermal overload protection ranging from 22 to 32 A, and a short-circuit N-release set at 416 A. This breaker uses screw terminals for secure installation and provides standard switching capacity suitable for demanding industrial environments.

This breaker is ideal for applications where motors may experience longer start-up times or higher starting currents, making the Class 20 rating more appropriate than Class 10. It is commonly utilized in various industrial settings, including manufacturing plants, material handling systems, and water treatment facilities, to protect motors from damage.

Stanlo Automation, a veteran-owned surplus parts distributor, ensures that the Siemens 3RV2031-4EB10 you receive is a high-quality, reliable component. We understand the critical nature of industrial automation parts and are dedicated to providing dependable solutions for your MRO needs.

Technical specifications

Size	S2
Rated operational current (Ie)	32 A
Adjustment range of overload releases	22...32 A
Actuation type	THERMAL
Trip class	CLASS 20
Number of poles	3
Voltage	400 V
Protection class	IP20

Common applications

Motor protection

Pumps

Fans

Compressors

Industrial machinery

Material handling

Compatible systems

Industrial motor control systems requiring Class 20 protection

Also known as

Siemens 3RV2 Class 20 breaker S2 motor protector 3RV2031-4EB10 Siemens starter protector

Replaces / compatible with

The Siemens 3RV2031-4EB10 provides Class 20 motor protection, offering a suitable alternative for applications where a longer time delay is needed for motor starting compared to Class 10 breakers.

Technical note

Expert tip

The Class 20 rating of the 3RV2031-4EB10 ensures a minimum delay of 20 seconds at 6 times the set current, which is beneficial for motors with high inrush currents.

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Frequently asked questions

When is a Class 20 trip class preferred over Class 10 for motor protection?

A Class 20 trip class, like on the 3RV2031-4EB10, is typically chosen for motors that have higher starting currents or longer acceleration times. It allows the motor to reach operating speed without tripping the breaker prematurely, while still providing effective overload protection.