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Siemens 5SJ4 2-Pole Miniature Circuit Breaker - 8A

Siemens 5SJ4 2-pole miniature circuit breaker with D-curve tripping.

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ManufacturerSiemens

Part number5SJ4208-8HG42

Poles 2

Rated Current 8A

Tripping Curve D

Breaking Capacity 10kA

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Veteran-owned

CAGE: 9NK75

2-pole design D-curve tripping characteristic 10kA breaking capacity UL 489 listed 8A rated current Compact size

Product description

The Siemens 5SJ4208-8HG42 is a 2-pole miniature circuit breaker designed for reliable overcurrent protection. It features a D-curve tripping characteristic, a rated current of 8A, and a breaking capacity of 10kA. This breaker is UL 489 listed for use in 480Y/277V applications, ensuring compliance with stringent safety standards.

Ideal for industrial and commercial installations, this circuit breaker protects electrical circuits from overloads and short circuits. It is commonly used in control panels, machinery, and building distribution systems where robust and dependable protection is required.

Source your Siemens 5SJ4208-8HG42 from Stanlo Automation, a veteran-owned surplus parts distributor. We offer quality components with reliable service, ensuring you get the parts you need to keep your operations running smoothly.

Technical specifications

Poles	2
Rated Current	8A
Tripping Curve	D
Breaking Capacity	10kA
Voltage Rating	480Y/277V AC
Standard	UL 489

Common applications

Industrial control panels

Machine protection

Building distribution

Motor circuits

Power distribution

Compatible systems

UL 489 compliant electrical systems 480Y/277V AC circuits

Also known as

Siemens 5SJ4 D-curve breaker 5SJ4 8A circuit breaker Siemens 2-pole breaker

Replaces / compatible with

This breaker is designed to replace older Siemens 5SJ series components or similar 2-pole, 8A, D-curve breakers meeting UL 489 standards.

Technical note

Expert tip

Ensure proper wire termination and torque according to Siemens specifications for reliable operation and safety.

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Frequently asked questions

What is the breaking capacity of the Siemens 5SJ4208-8HG42?

The Siemens 5SJ4208-8HG42 miniature circuit breaker has a breaking capacity of 10kA. This rating ensures it can safely interrupt fault currents up to 10,000 Amperes, protecting equipment and preventing electrical hazards.