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Siemens 3RV2031-4VB10 S2 Class 20 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV2031-4VB10

Size S2

Type Motor Protection Circuit Breaker

Trip Class 20

Adjustable Current (A-release) 35-45 A

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Motor protection Class 20 tripping Adjustable current setting 650A short circuit release Screw terminals Size S2

Product description

The Siemens 3RV2031-4VB10 is a robust Size S2 motor protection circuit breaker featuring a Class 20 trip rating, suitable for applications requiring a slower response to overloads. It offers an adjustable A-release setting from 35 to 45 A and a significant N-release of 650 A, ensuring reliable protection against short circuits. This breaker utilizes secure screw terminals for straightforward installation and provides standard switching capacity.

This circuit breaker is designed for protecting electric motors in various industrial settings, including general manufacturing, pump control, and fan applications where Class 20 tripping characteristics are preferred. It ensures dependable operation and longevity for motor-driven equipment.

Stanlo Automation, a veteran-owned company, is your trusted source for surplus industrial automation parts, including the Siemens 3RV2031-4VB10. We are committed to providing quality components and exceptional service to keep your operations running smoothly.

Technical specifications

Size	S2
Type	Motor Protection Circuit Breaker
Trip Class	20
Adjustable Current (A-release)	35-45 A
Short Circuit Release (N-release)	650 A
Terminals	Screw
Switching Capacity	Standard

Common applications

Motor control

Industrial machinery

Pump applications

Fan control

General manufacturing

Automation systems

Compatible systems

Designed for use with Siemens Sirius motor protection systems and compatible with various industrial control panels.

Also known as

Siemens 3RV2031-4VB10 3RV20314VB10 Siemens S2 motor breaker

Replaces / compatible with

This circuit breaker is suitable for replacing or upgrading Siemens motor protection devices that require Class 20 tripping characteristics and similar current ratings.

Technical note

Expert tip

The Class 20 trip class is often chosen for motors with higher starting currents or longer acceleration times to prevent nuisance tripping.

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Frequently asked questions

What is the difference between Class 10 and Class 20 trip ratings on Siemens circuit breakers?

A Class 10 trip rating on a Siemens circuit breaker will trip within 10 seconds at approximately 6 times the set overload current, providing faster protection. A Class 20 rating trips within 20 seconds at the same overload, offering slower response suitable for motors with longer start-up times.