5SU1356-1KK20

5SU1356-1KK20 belongs to the SIEMENS SENTRON 5SU1356 series RCBO, with a rated current of 20A, C-operation characteristic, AC type, 6kA short-circuit breaking capacity, and combines leakage and overcurrent protection. It is suitable for circuit protection in residential and industrial distribution boxes.

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SIEMENS SENTRON 5SU1356-1KK20 Residual Current Circuit Breaker (RCBO) Overcurrent Protection Product Image

Product Positioning

The SIEMENS SENTRON 5SU1356-1KK20 is an RCBO from the 5SU1356 series, with a rated current of 20A, C-type operating characteristics, AC-type leakage current detection, and a 6kA breaking capacity, integrating leakage current protection and overcurrent protection into a single modular circuit breaker.

Core Product Advantages and Features

Leakage and overcurrent protection

A single device integrates residual current operated protection and C-characteristic overcurrent protection, simplifying wiring in distribution boxes and saving installation space.

AC type (alternating current) leakage detection

It can detect standard AC residual current and is suitable for general resistive and inductive load circuits.

6kA rated short-circuit breaking capacity

With a rated short-circuit breaking capacity of 6kA, it can withstand the impact of instantaneous short-circuit current in the power distribution system, thus enhancing electrical safety.

Compact single-module width design

It adopts a compact mechanism with a single pole and a single module pitch (approximately 17.5mm per pole), and can be quickly installed using DIN rails, making it suitable for applications with limited space in distribution boxes.

project	Specification
Product Model	5SU1356-1KK20
Rated current In	20 A
Extreme number	1P+N
Motion characteristic curve	C
Leakage current operating sensitivity IΔn	30 mA
Rated short-circuit breaking capacity Icn	6 kA
Leakage current pattern	AC type (interactive)
Rated voltage	AC 230V

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