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

Siemens 5SY4306-5 Miniature Circuit Breaker

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ManufacturerSiemens

Part number5SY4306-5

Poles 3

Current Rating 6A

Voltage Rating 400V AC

Breaking Capacity 10kA

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3-pole design 6A current rating Type A tripping curve 10kA breaking capacity DIN rail mountable Designed for sensitive electronics

Product description

The Siemens 5SY4306-5 is a 3-pole miniature circuit breaker designed for sensitive electronic 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 A tripping characteristic, specifically designed for circuits requiring protection against very low inrush currents.

This circuit breaker is ideal for protecting sensitive electronic loads such as semiconductor devices, control circuits with low inrush, and specialized industrial equipment. Its Type A curve ensures it trips quickly on overcurrents without being overly sensitive to normal startup surges.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 5SY4306-5. We provide reliable, cost-effective solutions for your automation needs, backed by a commitment to quality and customer service.

Technical specifications

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

Common applications

Semiconductor Protection

Sensitive Electronic Loads

Control Circuits

Industrial Automation

Specialized Equipment

Compatible systems

General industrial automation systems, control panels, and electrical distribution boards.

Also known as

Siemens SENTRON 5SY4306-5 5SY4 Series MCB Siemens 6A 3P A-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 A tripping characteristic is designed for minimal magnetic tripping, typically between 2-3 times the rated current, making it unsuitable for loads with significant inrush currents like motors.

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Frequently asked questions

What is the primary application for a Siemens 5SY4306-5 circuit breaker with a Type A curve?

The Siemens 5SY4306-5 with its Type A tripping characteristic is primarily used for circuits that require protection against very low inrush currents. This makes it ideal for protecting sensitive electronic components, semiconductors, and control circuits where nuisance tripping must be avoided.