RCBO, 6 kA, 1P+N, type A, 30 mA, B char., In: 16 A, Un AC: 230 V Part number 5SU1356-6KK16

Product Overview

The Siemens 5SU1356-6KK16 is a Residual Current Circuit Breaker with Overload protection (RCBO) designed for combined short-circuit, overload and residual-current protection in one device. It features 1 pole + neutral (1P + N) configuration, type A residual current sensitivity (30 mA) and B-characteristic tripping for a rated current of 16 A. It is built for reliable protection in distribution boards with compact width and high breaking capacity.

Key Features

• RCBO combining circuit-breaker (B-curve) and residual current protection (type A, 30 mA) in one unit
• Rated current 16 A in a 1P + N configuration
• Rated residual current sensitivity: 30 mA
• High breaking capacity: 6 kA as per EN 60898 and 15 kA as per IEC 60947-2
• Compact module width: 36 mm (2 modular width units)
• Screw-type terminals for secure connection and touch protection
• Suitable for top or bottom supply entry for flexible installation

Technical Specifications

• Article Number: 5SU1356-6KK16
• Device Type: RCBO (Residual Current Breaker with Overload protection)
• Poles: 1P + N (2 poles total) in a single unit
• Rated Current (In): 16 A
• Rated Residual Current (IΔn): 30 mA
• Tripping Characteristic: B-curve
• Residual Current Type: Type A (for AC + pulsating DC leakage currents)
• Rated Breaking Capacity: 6 kA (EN 60898) / 15 kA (IEC 60947-2)
• Module Width: 36 mm (2 width units)
• Installation Depth: 70 mm; Height: 90 mm; Depth: 77 mm
• Ambient Temperature (Operation): –25 °C to +55 °C
• Protection Class Front: IP20 (when installed with connected conductors)
• Conductor Cross-Section (Connections): Solid or stranded 0.75…35 mm² (finely stranded with end termination up to 25 mm²)

Compliance & Certifications

• Designed according to EN 61009-1 (RCBO standard) and other relevant low-voltage switch-gear regulations
• Over-voltage Category III, Pollution Degree 2 for typical installations
• Halogen-free and silicon-free in accordance with Siemens design requirements

Applications

The 5SU1356-6KK16 RCBO is ideal for distribution boards in industrial, commercial and residential installations where both overload/short-circuit protection and earth-fault (residual current) protection are required in a single device. Its compact size and combined protection make it well-suited for retrofit panel upgrades, modular enclosure systems and installations with limited space. It supports enhanced safety especially where pulsating DC leakage currents exist (type A) such as with certain inverter or UPS systems.