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

Siemens 5SJ4202-7HG42 2-pole Miniature Circuit Breaker

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ManufacturerSiemens

Part number5SJ4202-7HG42

Rated Current 2A

Poles 2

Trip Curve C

Breaking Capacity 10kA

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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 5SJ4202-7HG42 is a 2-pole miniature circuit breaker featuring a 2A rated current and a C-curve tripping characteristic. It provides a 10kA breaking capacity, making it suitable for general circuit protection in industrial and commercial environments. This breaker is UL 489 listed for applications up to 480Y/277V.

This circuit breaker is commonly used in control panels, distribution boards, and machinery to protect against overloads and short circuits. Its applications span across manufacturing, building automation, and infrastructure projects where reliable electrical protection is essential.

Stanlo Automation, a veteran-owned business, stocks the Siemens 5SJ4202-7HG42 and other industrial automation surplus parts. We are committed to providing quality components with competitive pricing and fast delivery to minimize your downtime.

Technical specifications

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

Common applications

Control Panels

Distribution Boards

Industrial Machinery

Building Automation

Electrical Protection

Compatible systems

Standard distribution panels DIN rail mounting systems Control enclosures

Also known as

Siemens 5SJ4 2A breaker 5SJ42027HG42 Siemens 2 pole breaker Siemens 10kA circuit breaker

Replaces / compatible with

This model serves as a direct replacement for other Siemens 5SJ4 series circuit breakers with identical specifications. It is designed for compatibility with standard DIN rail mounting.

Technical note

Expert tip

The 480Y/277V rating is important for applications with higher system voltages common in North American industrial facilities.

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Frequently asked questions

What type of tripping curve does the Siemens 5SJ4202-7HG42 have?

The Siemens 5SJ4202-7HG42 features a C-curve tripping characteristic. This means it is designed to handle moderate inrush currents, making it suitable for circuits with inductive loads like motors and transformers, without nuisance tripping.