Circuit breaker size S2 for motor protection - 3RV2131-4UA10

Product Description

Siemens SIRIUS Motor Protection Circuit Breaker – Size S2 – 3RV2131-4UA10

The Siemens 3RV2131-4UA10 is a SIRIUS 3RV2 series motor protection circuit breaker (MPCB) designed for safe and reliable protection of three-phase motors against overload, short-circuit, and phase failure conditions. It is commonly used in MCC panels, motor starter assemblies, industrial automation systems, pumps, compressors, conveyors, and HVAC applications where medium-to-high motor current protection is required.

This device belongs to the Size S2 frame and features a thermal magnetic trip unit (Class 10), ensuring fast and reliable disconnection of motors during fault conditions to prevent damage to both motor windings and wiring systems.

It provides an adjustable overload range of 32–40 A along with a fixed magnetic short-circuit release of 585 A, making it suitable for medium-power motors (up to approx. 18.5 kW at 400V AC) in industrial applications.

Key Features

• Siemens SIRIUS 3RV2 motor protection circuit breaker
• Size S2 robust industrial motor protection frame
• Adjustable overload setting: 32–40 A
• Fixed short-circuit release: 585 A
• Thermal magnetic protection system
• Trip class: Class 10 (fast motor protection)
• Phase failure protection included
• Manual ON/OFF switching function
• Designed for motor starter coordination (with 3RT contactors)
• IEC 60947-4-1 compliant