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Siemens 5SM3346-6 4-Pole Residual Current Circuit Breaker

Siemens 5SM3346-6 4-pole Type A Residual Current Circuit Breaker.

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ManufacturerSiemens

Part number5SM3346-6

Poles 4

Type A

Rated current (In) 63 A

Rated residual current (IΔn) 30 mA

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CAGE: 9NK75

4-pole design Type A tripping 63A current rating 30mA sensitivity 400V AC operational voltage DIN rail mountable

Product description

The Siemens 5SM3346-6 is a 4-pole Residual Current Operated Circuit Breaker (RCCB) designed for reliable protection against electric shock. It features a Type A tripping characteristic, a rated current of 63 A, a rated residual current of 30 mA, and an operational voltage of 400 V AC. This RCCB ensures safety in electrical installations by quickly disconnecting power in the event of earth faults.

This device is ideal for use in residential, commercial, and industrial settings where personal protection against indirect contact is crucial. It is commonly applied in distribution boards and control panels to safeguard circuits from earth leakage currents, preventing potential fire hazards and ensuring user safety.

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Technical specifications

Poles	4
Type	A
Rated current (In)	63 A
Rated residual current (IΔn)	30 mA
Rated operational voltage (Un AC)	400 V
Frequency	50/60 Hz
Breaking capacity (Icn)	10 kA
Tripping current	30 mA
Protection class	IP20 (installed)
Mounting	DIN rail

Common applications

Residential electrical installations

Commercial building safety

Industrial distribution boards

Control panel protection

Machine safety circuits

Protection against indirect contact

Compatible systems

Standard DIN rail mounting systems Siemens switchgear components

Also known as

Siemens 5SM3346-6 RCCB Siemens 63A 30mA 4P breaker Siemens Type A RCD

Replaces / compatible with

This RCCB is designed to meet current safety standards and is a direct replacement for older models with similar specifications. It is compatible with various Siemens distribution systems.

Technical note

Expert tip

Ensure proper wiring of all four poles for correct operation and safety, especially when used in three-phase systems.

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Frequently asked questions

What is the tripping characteristic of the Siemens 5SM3346-6 circuit breaker?

The Siemens 5SM3346-6 is a Type A residual current circuit breaker. This means it is sensitive to both sinusoidal alternating currents and pulsating direct currents, offering broader protection compared to Type AC.