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Siemens 5SM3418-6KK 2-Pole Residual Current Circuit Breaker

Siemens 5SM3418-6KK 2-pole Type A Residual Current Circuit Breaker.

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ManufacturerSiemens

Part number5SM3418-6KK

Poles 2

Type A

Rated current (In) 100 A

Rated residual current (IΔn) 100 mA

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2-pole design Type A tripping 100A current rating 100mA sensitivity 230V AC operational voltage DIN rail mountable

Product description

The Siemens 5SM3418-6KK is a 2-pole Residual Current Operated Circuit Breaker (RCCB) featuring a Type A tripping characteristic. It is designed with a high rated current of 100 A, a rated residual current of 100 mA, and an operational voltage of 230 V AC. This RCCB provides essential protection against electric shock resulting from direct or indirect contact with live conductors and safeguards against fire damage caused by earth faults.

This 2-pole RCCB is suitable for single-phase applications where higher current loads are present and enhanced personal protection is required. It is commonly installed in industrial control panels, machinery, and specific commercial applications demanding robust earth leakage protection.

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Technical specifications

Poles	2
Type	A
Rated current (In)	100 A
Rated residual current (IΔn)	100 mA
Rated operational voltage (Un AC)	230 V
Frequency	50/60 Hz
Breaking capacity (Icn)	6 kA
Mounting	DIN rail

Common applications

Single-phase circuits

Industrial machinery

Control panels

Commercial installations

Workshops

Heavy-duty equipment protection

Compatible systems

Standard DIN rail mounting Single-phase electrical systems

Also known as

Siemens 5SM3418-6KK RCCB Siemens 100A 2P Type A breaker Siemens 230V RCD

Replaces / compatible with

This 2-pole RCCB is designed to meet modern safety standards for single-phase protection. It can replace older 2-pole RCCBs with similar voltage and current ratings from Siemens or compatible manufacturers.

Technical note

Expert tip

When installing the 2-pole breaker, ensure that both the line and neutral conductors are connected correctly to ensure proper residual current detection.

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Frequently asked questions

What is the difference between Type A and Type AC RCCBs?

Type A RCCBs, like the Siemens 5SM3418-6KK, are sensitive to both sinusoidal AC residual currents and pulsating DC residual currents. Type AC RCCBs are only sensitive to sinusoidal AC residual currents. Therefore, Type A offers a higher level of protection, especially against faults caused by electronic equipment.