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Siemens 5SY4301-7 3-Pole Miniature Circuit Breaker — 1A

Siemens 5SY4301-7 3-pole miniature circuit breaker.

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ManufacturerSiemens

Part number5SY4301-7

Type Miniature Circuit Breaker

Manufacturer Siemens

Part Number 5SY4301-7

Poles 3

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3-pole protection 400V rated 10kA breaking capacity C-curve tripping 1A current rating 70mm depth

Product description

The Siemens 5SY4301-7 is a 3-pole miniature circuit breaker designed for comprehensive protection in three-phase systems. It offers a 400V rated voltage and a 10kA breaking capacity, with a C-curve trip characteristic suitable for loads with moderate inrush currents. This breaker is specifically rated for 1A.

This 1A, 3-pole circuit breaker is ideal for protecting sensitive control circuits, instrumentation, and small three-phase loads where precise overcurrent protection is required. Its application spans across industrial automation, building services, and specialized equipment requiring reliable circuit interruption.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial parts, provides the Siemens 5SY4301-7. We are committed to delivering quality surplus components with excellent service and fast delivery, ensuring your operations run smoothly.

Technical specifications

Type	Miniature Circuit Breaker
Manufacturer	Siemens
Part Number	5SY4301-7
Poles	3
Rated Voltage	400V
Breaking Capacity	10kA
Current Rating	1A
Trip Curve	C
Depth	70 mm

Common applications

Control circuits

Instrumentation protection

Three-phase small motor loads

Automation systems

Building management

Electrical panels

Compatible systems

Suitable for integration into Siemens 5SY series compatible electrical enclosures and panels.

Also known as

Siemens 5SY4301-7 MCB Siemens 1A 3-pole breaker 5SY43017

Replaces / compatible with

As part of the Siemens 5SY4 series, this breaker can replace other 5SY4 3-pole breakers with equivalent specifications. It is compatible with Siemens switchgear accessories.

Technical note

Expert tip

When selecting a C-curve breaker like the 5SY4301-7 for control circuits, ensure the inrush current of the controlled devices does not exceed the breaker's tripping limits.

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Frequently asked questions

What is the primary application for the Siemens 5SY4301-7 1A circuit breaker?

The Siemens 5SY4301-7 is primarily used for protecting sensitive three-phase control circuits, instrumentation, and low-power three-phase loads. Its 1A rating and C-curve ensure precise overcurrent protection for these delicate applications.