Siemens Residual current circuit breaker, 4-pole, type AC, 400VAC, 30mA, 63A Part number 5SM2345-0

Product Overview

The Siemens 5SM2345-0 is a 4-pole residual-current circuit breaker (RCCB) from the SENTRON 5SM2 series. Designed for reliable protection against electric shock and fire hazards caused by earth faults, it is rated for 63 A operational current and 30 mA residual current sensitivity at 400 V AC. Its robust construction and compact modular design make it ideal for use in residential, commercial, and industrial electrical installations.

Key Features

• 4-pole residual-current circuit breaker (RCCB)
• Rated current: 63 A
• Residual current sensitivity: 30 mA (Type AC)
• Rated operational voltage: 400 V AC
• Provides personal and equipment protection from earth leakage currents
• Compact 3-module DIN-rail design compatible with SENTRON 5SY miniature circuit breakers

Technical Specifications

• Product Series: SENTRON 5SM2 Residual-Current Circuit Breakers
• Article Number: 5SM2345-0
• Number of Poles: 4
• Rated Current (In): 63 A
• Residual Current Rating (IΔn): 30 mA
• Rated Insulation Voltage (Ui): 460 V
• Impulse Withstand Voltage (Uimp): 4 kV
• Width: 54 mm (3 modular units)
• Height: 90 mm
• Installation Depth: 70 mm
• Protection Class: IP20 (with connected conductors)
• Net Weight (Approx.): 0.36 kg
• Operating Ambient Temperature: –5 °C to +45 °C

Compliance & Certifications

• Complies with IEC/EN 61008 and related standards for residual-current devices
• Manufactured under Siemens SENTRON quality and safety standards
• RoHS-compliant and rated for industrial and residential installations

Applications

The Siemens 5SM2345-0 residual-current circuit breaker is used in electrical distribution systems for protection against electric shock and fire risk caused by leakage currents. It ensures safety in residential buildings, commercial facilities, and industrial control panels by providing dependable disconnection in case of earth faults.