Siemens Sentron RCBO, 1P+N, type A, 6kA, 30mA 40 Amp Part number 5SU1356-6KK40

Product Overview

The Siemens RCBO (Residual Current Circuit-Breaker with Overcurrent protection) (SKU: 5SU1356-6KK40) is a 1P+N device combining residual current protection and overcurrent protection in one unit, designed for 230 V AC networks with a rated current of 40 A, type B characteristic, and residual current sensitivity of 30 mA.

Key Features

• 1-pole + neutral (1P+N) RCBO with both earth-leakage and overload/short-circuit protection
• Rated operational current Iₙ: 40 A
• Residual current sensitivity: 30 mA (Type A)
• Type B tripping characteristic
• Rated breaking capacity: 6 kA (per EN 61009-1)
• Neutral conductor switching included
• Halogen-free and silicone-free design

Technical Specifications

• Product Type: Residual current circuit-breaker with overcurrent protection (RCBO)
• Article Number: 5SU1356-6KK40
• Number of Poles: 1P+N
• Rated Current (Iₙ): 40 A
• Rated Voltage (Uₙ): 230 V AC
• Residual Current Rating (IΔₙ): 30 mA
• Breaking Capacity (Icn): 6 kA
• Width: 36 mm (2 modular units)
• Height: 90 mm
• Depth / Installation Depth: 70 mm / 77 mm
• Net Weight (approx.): 0.284 kg
• Protection Class: IP20 (when installed)
• Ambient Operating Temperature: –25 °C to +55 °C
• Storage Temperature: –40 °C to +75 °C

Compliance & Certifications

• Energy-limiting class 3
• Overvoltage category III
• Pollution degree 2
• Touch protection included

Applications

Ideal for applications requiring combined overcurrent and ground-fault protection in domestic or commercial installations and distribution boards. The 5SU1356-6KK40 provides compact, reliable protection in a single device—suitable for panel boards, consumer units and small industrial control panels.