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Siemens 5SY4306-6 3-Pole Miniature Circuit Breaker - 6A, 400V

Siemens 5SY4306-6 Miniature Circuit Breaker

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ManufacturerSiemens

Part number5SY4306-6

Poles 3

Current Rating 6A

Voltage Rating 400V AC

Breaking Capacity 10kA

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3-pole design 6A current rating Type B tripping curve 10kA breaking capacity DIN rail mountable Reliable overload and short-circuit protection

Product description

The Siemens 5SY4306-6 is a 3-pole miniature circuit breaker designed for general-purpose protection. It operates at 400V AC with a current rating of 6A and a short circuit breaking capacity of 10kA. This breaker features a Type B tripping characteristic, ideal for circuits with low inrush currents such as lighting and some electronic devices.

This circuit breaker is commonly used in residential, commercial, and light industrial applications. Its Type B curve provides reliable protection against overloads and short circuits for standard loads and sensitive equipment where immediate tripping is desired.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 5SY4306-6. We provide quality components and competitive pricing to meet your automation needs efficiently.

Technical specifications

Poles	3
Current Rating	6A
Voltage Rating	400V AC
Breaking Capacity	10kA
Tripping Characteristic	B
Mounting	DIN Rail
IP Rating	IP20

Common applications

Residential Electrical Systems

Commercial Buildings

Light Industrial Applications

Lighting Circuits

Electronic Devices

Compatible systems

General residential and commercial electrical systems, control panels, and distribution boards.

Also known as

Siemens SENTRON 5SY4306-6 5SY4 Series MCB Siemens 6A 3P B-curve breaker

Replaces / compatible with

Compatible with Siemens SENTRON 5SY series accessories. Consult manufacturer documentation for specific replacement information.

Technical note

Expert tip

The Type B tripping characteristic is generally recommended for circuits with minimal inrush currents. For inductive loads like motors, a Type C or D breaker is typically more appropriate.

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Frequently asked questions

What is the difference between a Type B and Type C circuit breaker?

Type B circuit breakers trip between 3-5 times their rated current, making them suitable for loads with low inrush currents like resistive loads and some lighting. Type C breakers trip between 5-10 times their rated current, offering better protection for inductive loads like motors and transformers.