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Siemens 5SU1356-6KK10 RCBO - 10A, 6kA, Type A

Siemens RCBO 5SU1356-6KK10: 10A, 1P+N, 6kA, Type A, 30mA, B-Char.

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ManufacturerSiemens

Part number5SU1356-6KK10

Breaking Capacity 6 kA

Poles 1P+N

RCD Type Type A

Rated Residual Current 30 mA

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CAGE: 9NK75

Combined overcurrent and residual current protection 6 kA breaking capacity Type A RCD for AC and pulsating DC detection B-characteristic tripping for sensitive loads Compact 1P+N design

Product description

The Siemens 5SU1356-6KK10 is a Residual Current Breaker with Overcurrent protection (RCBO) featuring a 6 kA breaking capacity. This 1-pole plus neutral device is designed with Type A RCD sensitivity, capable of detecting AC and pulsating DC residual currents, and a 30 mA rated residual current. It utilizes a B-characteristic tripping curve, suitable for circuits with low inrush currents, and has a nominal current (In) of 10 A at 230 V AC.

This RCBO is ideal for applications requiring sensitive residual current detection and overcurrent protection, particularly in residential settings or for sensitive electronic equipment. The B-characteristic offers enhanced protection against earth faults by tripping at lower currents for short-duration overloads compared to C-characteristics.

Stanlo Automation, a veteran-owned surplus parts distributor, ensures availability of critical components like the Siemens 5SU1356-6KK10. We are dedicated to supporting industrial automation by providing quality surplus parts that help maintain operational continuity.

Technical specifications

Breaking Capacity	6 kA
Poles	1P+N
RCD Type	Type A
Rated Residual Current	30 mA
Tripping Characteristic	B
Rated Current (In)	10 A
Rated Voltage (Un AC)	230 V

Common applications

Residential circuits

Sensitive electronic equipment protection

Offices

Control circuits

Lighting installations

Compatible systems

Standard 230V AC electrical distribution systems, particularly for sensitive applications

Also known as

Siemens SENTRON RCBO B-Char 5SU1 356-6KK10 Siemens 10A Type A RCBO

Replaces / compatible with

Suitable as a direct replacement for individual RCD and MCB combinations or older RCBOs with similar ratings. Offers enhanced protection for sensitive circuits.

Technical note

Expert tip

The B-characteristic is ideal for protecting circuits with minimal inductive or capacitive components, providing rapid response to fault conditions.

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Frequently asked questions

What is the main difference between B-Char and C-Char tripping curves on RCBOs?

The B-characteristic trips at 3-5 times the rated current, making it more sensitive to overcurrents and suitable for sensitive loads. The C-characteristic trips at 5-10 times the rated current, designed to handle moderate inrush currents typical of lighting or socket circuits.