Circuit breaker size S2 for starter combination - 3RV2331-4UC10

Product Description

Siemens SIRIUS Motor Protection Circuit Breaker – Size S2 (Starter Combination) – 3RV2331-4UC10

The Siemens 3RV2331-4UC10 is a SIRIUS 3RV2 series motor protection circuit breaker (MPCB) designed specifically for starter combination applications, where it works in coordination with a Siemens contactor (such as 3RT series) to form a complete and reliable motor starter system.

It provides dependable protection for three-phase motors against overload, short-circuit, and phase failure, making it suitable for industrial motor control systems, MCC panels, pumps, compressors, conveyors, HVAC systems, and OEM machinery.

This device belongs to the Size S2 frame, optimized for medium-power motor applications requiring higher current handling and reliable coordination in starter assemblies.

Key Features

• Siemens SIRIUS 3RV2 motor protection circuit breaker
• Designed for starter combination with contactor systems (3RT series)
• Size S2 industrial frame
• Thermal magnetic protection system
• Protection against overload, short-circuit, and phase failure
• Fixed instantaneous short-circuit release (585 A release setting)
• Rated current: 40 A
• High breaking capacity suitable for motor starter applications
• Screw-type terminal connection for secure wiring
• IEC 60947-4-1 compliant