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Siemens 5SY8225-7 Miniature Circuit Breaker - 2-Pole, C25, 400V

Siemens 5SY8225-7 miniature circuit breaker, 2-pole, C25, 400V.

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ManufacturerSiemens

Part number5SY8225-7

Poles 2

Rated Current 25A

Breaking Capacity 25kA

Voltage 400V

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Two-pole configuration C-curve tripping 25kA breaking capacity Rated for 400V Standard 70mm width Complies with EN 60947-2

Product description

The Siemens 5SY8225-7 is a two-pole miniature circuit breaker designed for robust overcurrent protection in AC circuits up to 400V. It features a C-curve tripping characteristic for handling moderate inrush currents and a rated current of 25A. With a breaking capacity of 25kA, compliant with EN 60947-2, it offers reliable protection for demanding applications. The breaker has a standard 70mm width.

This 2-pole breaker is commonly used in industrial and commercial settings for applications such as protecting power circuits, motor feeders, and equipment where simultaneous disconnection of both live conductors is required. Its C-curve makes it suitable for loads with higher starting currents.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 5SY8225-7. We provide quality, cost-effective solutions for your automation needs, ensuring you can maintain or upgrade your systems efficiently.

Technical specifications

Poles	2
Rated Current	25A
Breaking Capacity	25kA
Voltage	400V
Curve	C (C25)
Width	70mm
Standard	EN 60947-2

Common applications

Power circuits

Motor feeders

Industrial machinery

Commercial distribution

Control panels

Equipment protection

Compatible systems

Industrial control panels Siemens distribution boards Motor control centers

Also known as

Siemens 5SY8225-7 MCB Siemens 2 Pole C25 Breaker Siemens 400V 25A Circuit Breaker

Replaces / compatible with

This 2-pole circuit breaker is suitable for replacing existing 2-pole breakers with similar specifications (400V, 25A, C-curve, 25kA) in industrial and commercial electrical systems.

Technical note

Expert tip

The Siemens 5SY8225-7 is designed for protecting circuits; it should not be used as a primary means of isolation unless specifically stated by the manufacturer for certain applications.

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Frequently asked questions

Why use a 2-pole breaker like the Siemens 5SY8225-7 for motor feeders?

The Siemens 5SY8225-7, being a 2-pole breaker, is used for motor feeders to ensure that both the live and neutral conductors are disconnected in case of an overload or short circuit. This provides a higher level of safety and protection for the motor and the connected circuitry.