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Siemens 5SY4225-7 Miniature Circuit Breaker — 2-Pole, Type C, 25A

Siemens 5SY4225-7 2-pole miniature circuit breaker.

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ManufacturerSiemens

Part number5SY4225-7

Rated Voltage 400V AC

Breaking Capacity 10kA

Poles 2

Tripping Characteristic Type C

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2-pole protection Type C tripping for inductive loads 10kA breaking capacity 400V AC rated 70mm installation depth Siemens quality assurance

Product description

The Siemens 5SY4225-7 is a 2-pole miniature circuit breaker designed for reliable circuit protection. It features a Type C tripping characteristic, suitable for inductive loads, with a rated voltage of 400V AC and a 10kA breaking capacity. This model has a rated current of 25A and a standard 70mm depth.

This circuit breaker is widely used in industrial and commercial applications to protect electrical installations and equipment from overloads and short circuits. Its Type C curve makes it a good choice for circuits supplying motors, transformers, and lighting systems that experience moderate inrush currents.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 5SY4225-7. We are committed to offering quality, cost-effective components to support your industrial automation maintenance and repair needs.

Technical specifications

Rated Voltage	400V AC
Breaking Capacity	10kA
Poles	2
Tripping Characteristic	Type C
Rated Current	25A
Depth	70mm
Series	5SY4

Common applications

Motor control circuits

Industrial machinery

Commercial electrical systems

Power distribution

Lighting circuits

Automation equipment

Compatible systems

Standard DIN rail mounting Siemens industrial control cabinets

Also known as

Siemens 5SY4225-7 MCB Siemens 25A Type C breaker 5SY4 Type C 25A

Replaces / compatible with

The Siemens 5SY4225-7 is a direct replacement for other Siemens 5SY4 series breakers with identical specifications. It fits standard DIN rail mounting systems.

Technical note

Expert tip

Ensure that the circuit's expected inrush current does not exceed the limits defined for a Type C breaker to avoid premature tripping.

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Frequently asked questions

What is the advantage of the Type C tripping characteristic on the Siemens 5SY4225-7?

The Type C tripping characteristic of the Siemens 5SY4225-7 allows it to handle moderate inrush currents, which are common in inductive loads like motors and fluorescent lighting. This prevents nuisance tripping during normal equipment startup while still providing protection against overloads and short circuits.