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Siemens 5SX2125-7 Miniature Circuit Breaker - 25A, 1-Pole

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ManufacturerSiemens

Part number5SX2125-7

Type Miniature Circuit Breaker

Poles 1

Current Rating 25A

Voltage Rating 230/400V AC/DC

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Veteran-owned

CAGE: 9NK75

1-Pole Configuration C-Curve Trip Characteristic 6kA Breaking Capacity 230/400V Rated Voltage T55 Series AC/DC Suitable

Product description

The Siemens 5SX2125-7 is a 1-pole miniature circuit breaker from the T55 series, designed for reliable overcurrent protection. It features a 25A current rating, a C-curve trip characteristic, and operates at 230/400V with a 6kA breaking capacity. This breaker is also suitable for DC voltage applications.

This breaker is commonly used in industrial environments, control cabinets, and power distribution systems. The C-curve makes it suitable for circuits with moderate inrush currents, such as those found in motor control applications.

Stanlo Automation, a veteran-owned surplus industrial automation parts distributor, offers the Siemens 5SX2125-7. We ensure that you get dependable components to keep your operations running smoothly.

Technical specifications

Type	Miniature Circuit Breaker
Poles	1
Current Rating	25A
Voltage Rating	230/400V AC/DC
Breaking Capacity	6kA
Trip Curve	C
Series	T55

Common applications

Industrial Automation

Control Panels

Distribution Systems

Machinery

Electrical Safety

Power Distribution

Compatible systems

General purpose AC/DC circuits

Also known as

Siemens T55 25A 5SX2 25A Siemens 1 Pole C25

Replaces / compatible with

This Siemens 5SX2 T55 series breaker is a direct replacement for other 25A, 1-pole, C-curve breakers in its product family. For specific compatibility, always consult manufacturer specifications.

Technical note

Expert tip

This part is noted as discontinued and replaced by series such as 5SY6 or 5SL6, which may have different physical dimensions.

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Frequently asked questions

Is the Siemens 5SX2125-7 suitable for DC circuits?

Yes, the Siemens 5SX2125-7 is rated for both AC and DC voltage applications up to 400V (AC) and potentially lower for DC depending on configuration. Always refer to the specific product datasheet for detailed DC voltage ratings and safety precautions.