Siemens Circuit breaker for motor protection, size S2, 1NO+1NC, screw, 54-65A Part number 3RV2031-4JA15

Product Overview

The Siemens 3RV2031-4JA15 is a 3-pole motor-protection circuit breaker (MPCB) from the SIRIUS 3RV2 series, size S2. It features thermal-magnetic release with an adjustable range of **54…65 A**, and includes integrated transverse auxiliary switches (1 NO + 1 NC). Designed for the protection of motors and switching of IEC-rated currents, it supports network voltages up to 690 V.

Key Features

• 3-pole motor-protection circuit breaker, S2 size class
• Current setting range: 54…65 A (thermal release)
• Integrated auxiliary switches: 1 NO + 1 NC
• Rated insulation voltage: up to 690 V AC pollution class 3
• Includes magnetic release for short-circuit protection and screw-terminal connection
• Compact form factor with high switching capacity for motor feeder circuits

Technical Specifications

• Product Series: SIRIUS 3RV2 Motor Protection Circuit Breakers
• Article Number: 3RV2031-4JA15
• Size of Circuit Breaker: S2
• Rated Current Setting (thermal): 54…65 A
• Rated Insulation Voltage (Ui): 690 V AC, pollution class 3
• Switching Capacity (N-release): 845 A
• Poles for Main Current Circuit: 3
• Protection Class (Front): IP20 (terminals IP00)
• Operating Ambient Temperature: −20 °C … +60 °C
• Net Weight (Approx.): 1.207 kg

Compliance & Certifications

• Meets relevant IEC/EN standards for motor protection devices
• Designed and manufactured under Siemens industrial automation quality standards
• RoHS-compliant and listed as a standard stock product (PM300 Active)

Applications

The Siemens 3RV2031-4JA15 is ideal for motor feeder protection in industrial automation systems, switchgear and control cabinets. It is specifically suited for circuits where the motor full-load current falls within its adjustable range, offering reliable overload and short-circuit protection in compact installations.