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Siemens 5SJ4325-8HG42 3-Pole D-Curve Circuit Breaker

Siemens 5SJ4325-8HG42 3-pole D-curve Circuit Breaker

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ManufacturerSiemens

Part number5SJ4325-8HG42

Type Circuit Breaker

Poles 3

Rated Current 25A

Tripping Characteristic D

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Veteran-owned

CAGE: 9NK75

3-pole protection D-curve tripping for high inrush 10kA interrupting rating UL 489 listed Ideal for motor loads

Product description

The Siemens 5SJ4325-8HG42 is a 3-pole circuit breaker designed with a D-curve tripping characteristic for applications with high inrush currents, such as motor starting. It offers a 25A rated current and a 10kA breaking capacity at 480Y/277V, meeting stringent UL 489 standards.

This breaker is the preferred choice for protecting motors, transformers, and other inductive loads that experience significant temporary overcurrents during startup. It is commonly utilized in industrial machine building, manufacturing plants, and complex automation systems.

As a veteran-owned surplus parts distributor, Stanlo Automation is your source for the Siemens 5SJ4325-8HG42. We help businesses optimize their automation budgets by providing access to reliable surplus components, ensuring minimal disruption to production.

Technical specifications

Type	Circuit Breaker
Poles	3
Rated Current	25A
Tripping Characteristic	D
Breaking Capacity	10kA @ 480Y/277V
Standard	UL 489

Common applications

Motor protection

High inrush current circuits

Transformers

Machine building

Industrial manufacturing

Automation systems

Compatible systems

Standard DIN rail mounting.

Also known as

Siemens 5SJ4325-8HG42

Replaces / compatible with

This breaker is suitable for replacing Siemens or other manufacturers' 3-pole, 25A, D-curve circuit breakers used for high inrush current applications.

Technical note

Expert tip

This breaker's D-curve allows for inrush currents up to 20 times the rated current for a short duration.

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Frequently asked questions

Why is the D-curve important for motor protection with the Siemens 5SJ4325-8HG42?

The D-curve tripping characteristic allows the Siemens 5SJ4325-8HG42 to tolerate the high inrush currents typically drawn by motors during startup, preventing nuisance tripping while still providing overload and short-circuit protection.