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Siemens ED42B025 Sentron ED4 Series 25A 2-Pole Circuit Breaker

Siemens ED42B025 2-Pole Molded Case Circuit Breaker

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ManufacturerSiemens

Part numberED42B025

Amperage 25A

Voltage 480V AC

Poles 2

Interrupt Rating 18kA @ 480V

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Thermal-Magnetic Trip Long-Time and Instantaneous (LI) Functions 18kAIC Interrupt Rating 2-Pole Configuration Bolt-On Mounting HACR Rated

Product description

The Siemens ED42B025 is a 2-pole molded case circuit breaker from the Sentron ED4 series, rated for 25A and 480V AC. It features a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions, providing robust protection against overloads and short circuits. This breaker offers an 18kA interrupting rating at 480V AC, ensuring safety and reliability in industrial applications.

This breaker is commonly used in 480V systems within industrial plants, manufacturing facilities, and commercial buildings for power distribution and motor protection. Its bolt-on mounting type allows for secure integration into Siemens panelboards and switchgear.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens ED42B025. We are committed to providing quality components at competitive prices, with exceptional service to meet your industrial automation needs.

Technical specifications

Amperage	25A
Voltage	480V AC
Poles	2
Interrupt Rating	18kA @ 480V
Trip Type	Thermal Magnetic
Functions	LI
Mounting	Bolt-On
Series	Sentron ED4

Common applications

Industrial Power Distribution

480V Electrical Systems

Motor Control

HVAC Equipment

Panelboards

Switchboards

Compatible systems

Siemens Panelboards Siemens Switchboards HVAC Systems Industrial Machinery

Also known as

Siemens ED42B025 breaker, Siemens Sentron ED42B025, ED42B025 circuit breaker, Siemens 25A 480V breaker

Replaces / compatible with

This is a Siemens ED4 frame breaker. It may replace older ED series breakers with similar voltage and amperage. Verify compatibility with specific panelboard and application requirements.

Technical note

Expert tip

The ED42B025 breaker is HACR (Heat, Air Conditioning, Refrigeration) rated, making it suitable for circuits supplying HVAC equipment.

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Frequently asked questions

What is the primary function of the LI trip unit in the Siemens ED42B025 circuit breaker?

The LI (Long-Time and Instantaneous) trip unit in the Siemens ED42B025 provides protection against both sustained overloads (long-time) and sudden, high-magnitude short circuits (instantaneous). This offers a dual layer of safety for electrical systems.