Siemens Residual current circuit breaker, 1P+N, type A, 6kA, 30mA, 230V, 6A Part number 5SU1356-6KK06

Product Overview

The Siemens 5SU1356-6KK06 is a SENTRON RCBO (Residual-current Circuit Breaker with Overcurrent protection), rated at 6 A with 1-pole + neutral (1P+N) configuration. It combines over-current protection and residual current (earth-leakage) protection (30 mA tripping) in a single compact device, making it suitable for providing both personnel and fire protection in single-phase branch circuits.

Key Features

• RCBO from Siemens SENTRON range: combines MCB and RCD functions
• Rated current (In): 6 A
• Configuration: 1P + N (pole + neutral) protection
• Type of residual-current protection: Type A (detects AC and pulsating DC residual currents)
• Residual current tripping sensitivity: 30 mA
• Tripping characteristic: B-curve for general load applications
• Short-circuit / breaking capacity: 6 kA (EN 61009-1) / up to 25 kA (IEC 60947-2) capability
• Compact width: 36 mm (2 modular width units) for space-efficient mounting

Technical Specifications

• Product Series: SENTRON RCBO
• Article Number: 5SU1356-6KK06
• Poles: 1P + N
• Rated Current (In): 6 A
• Residual Current Type: Type A
• Residual Current Sensitivity: 30 mA
• Rated Voltage (Un): 230/240 V AC, 50 Hz
• Short-circuit breaking capacity (Icn): 6 kA (EN 61009-1) / up to 25 kA (IEC 60947-2)
• Width: 36 mm (2 modules)
• Mounting Depth: Approx. 70 mm
• Connectable Conductor Cross-Section: Solid 0.75…35 mm² / Stranded 0.75…35 mm²
• Ambient Operating Temperature: –25 °C to +55 °C
• Protection Class: IP20 (when installed with connected conductors)

Compliance & Certifications

• Manufactured by Siemens under its low-voltage protection device portfolio
• Complies with IEC/EN 61009-1 (RCD with overcurrent) and IEC/EN 60898-1 / IEC/EN 60947-2 standards for overcurrent devices

Applications

Ideal for single-phase branch circuits in residential, commercial or industrial installations where both circuit-breaker and residual-current protection are required. Typical uses include lighting feeders, socket outlets, small control circuits and installations requiring protection against both overcurrent and earth-leakage faults.