Siemens Sentron RCBO, 2-pole, 30mA trip sensitivity, 32A current rating Part number 5SU1356-1KK32

Product Overview

The Siemens 5SU1356-1KK32 is a SENTRON RCBO (Residual Current Circuit Breaker with Overcurrent Protection) designed for single-phase systems. This 1-pole plus neutral (1P+N) device combines residual current and overcurrent protection in a compact module, rated at 32 A with a tripping sensitivity of 30 mA. With a breaking capacity of 6 kA and C characteristic curve, it ensures maximum protection for people and installations against electric shock, overload, and short-circuit faults.

Key Features

• Residual current circuit breaker with overcurrent protection (RCBO)
• 1-pole plus neutral (1P+N) configuration
• Rated operational current: 32 A
• Residual current sensitivity: 30 mA (Type A)
• Breaking capacity: 6 kA
• Tripping characteristic: C-curve
• Rated operational voltage: 230 V AC
• Provides combined protection against overload, short-circuit, and residual current faults
• Compact modular design for DIN-rail mounting

Technical Specifications

• Product Series: SENTRON RCBO
• Article Number: 5SU1356-1KK32
• Configuration: 1P+N (Single-phase)
• Rated Current (In): 32 A
• Residual Current Sensitivity (IΔn): 30 mA
• Tripping Characteristic: Type C
• Breaking Capacity (Icu): 6 kA
• Rated Voltage (Ue): 230 V AC
• Mounting Type: DIN-rail
• Protection Class (front): IP20 (with connected conductors)
• Ambient Operating Temperature: –25 °C to +45 °C

Compliance & Certifications

• Complies with IEC/EN standards for residual current devices with integrated overcurrent protection
• Manufactured and tested according to Siemens SENTRON safety and performance requirements
• Designed for reliable operation in residential, commercial, and industrial electrical systems

Applications

Ideal for use in low-voltage distribution boards, sub-panels, and control systems where combined protection is required. Suitable for residential, commercial, and light industrial installations to protect people and property against electrical faults, including overload, short-circuit, and earth leakage conditions.