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Siemens 5SJ4 2-Pole Miniature Circuit Breaker – 1A, 10kA

Siemens 5SJ4201-7HG42 2-pole Miniature Circuit Breaker

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ManufacturerSiemens

Part number5SJ4201-7HG42

Rated Current 1A

Poles 2

Trip Curve C

Breaking Capacity 10kA

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12-month warranty

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Veteran-owned

CAGE: 9NK75

2-pole protection C-curve tripping 10kA breaking capacity UL 489 listed Compact design

Product description

The Siemens 5SJ4201-7HG42 is a 2-pole miniature circuit breaker designed for reliable overcurrent protection. It features a C-curve tripping characteristic and a rated current of 1A, with a breaking capacity of 10kA. This breaker is compliant with UL 489 standards for use in industrial and commercial applications, ensuring safety and performance up to 480Y/277V.

This circuit breaker is suitable for a wide range of applications, including protecting electrical circuits in control panels, machinery, and building installations. Industries such as manufacturing, food and beverage processing, and water treatment commonly utilize these breakers for safeguarding equipment and personnel from electrical faults.

As a veteran-owned business, Stanlo Automation specializes in providing high-quality surplus industrial automation parts like the Siemens 5SJ4201-7HG42. We offer competitive pricing and quick delivery, ensuring your operations stay online with reliable components.

Technical specifications

Rated Current	1A
Poles	2
Trip Curve	C
Breaking Capacity	10kA
Voltage	480Y/277V AC
Standard	UL 489

Common applications

Control Panels

Industrial Machinery

Building Automation

Electrical Distribution

OEM Equipment

Compatible systems

Standard distribution panels DIN rail mounting systems Control enclosures

Also known as

Siemens 5SJ4 breaker 5SJ42017HG42 Siemens 2-pole breaker Siemens 1A circuit breaker

Replaces / compatible with

This part is a direct replacement for other Siemens 5SJ4 series breakers with identical specifications. It is designed to be compatible with standard DIN rail mounting systems.

Technical note

Expert tip

Ensure proper wire termination within the screw terminals to maintain UL 489 compliance and reliable operation.

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Frequently asked questions

What is the breaking capacity of the Siemens 5SJ4201-7HG42?

The Siemens 5SJ4201-7HG42 circuit breaker has a breaking capacity of 10kA. This rating ensures it can safely interrupt fault currents up to 10,000 amps, protecting downstream equipment and preventing electrical hazards.