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Siemens 5SJ4102-7HG40 1-Pole 2A C-Curve Circuit Breaker — 14kA

Siemens 5SJ4102-7HG40 1-pole miniature circuit breaker.

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ManufacturerSiemens

Part number5SJ4102-7HG40

Poles 1

Current Rating 2A

Breaking Capacity 14kA

Tripping Characteristic C

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Veteran-owned

CAGE: 9NK75

14kA interrupting capacity C-curve tripping for moderate inrush UL 489 listed 2A current rating Equal polarity

Product description

The Siemens 5SJ4102-7HG40 is a 1-pole miniature circuit breaker featuring a C-curve tripping characteristic, a 2A current rating, and a 14kA breaking capacity. It operates at 240V and is compliant with UL 489 standards, making it suitable for a wide range of protection applications. The 'equal polarity' designation ensures consistent pole alignment in multi-pole configurations.

This circuit breaker is ideal for protecting electrical circuits against overloads and short circuits in residential, commercial, and industrial settings. The C-curve is designed for loads with moderate inrush currents, such as lighting, outlets, and some types of motors, offering a balance between sensitivity and nuisance trip avoidance.

As a veteran-owned surplus parts distributor, Stanlo Automation specializes in providing high-quality industrial automation components like the Siemens 5SJ4102-7HG40. We ensure that you receive dependable parts at competitive prices, backed by our commitment to customer satisfaction and technical expertise.

Technical specifications

Poles	1
Current Rating	2A
Breaking Capacity	14kA
Tripping Characteristic	C
Voltage Rating	240V AC
UL Standard	UL 489
Polarity	Equal

Common applications

Residential electrical systems

Commercial buildings

Light industrial applications

Motor circuits

Lighting circuits

Compatible systems

Distribution boards Control panels Lighting circuits Socket outlets

Also known as

Siemens 5SJ4102 5SJ4102-7HG40 breaker Siemens C-curve breaker

Replaces / compatible with

This part is a direct replacement for Siemens 5SJ4102 series circuit breakers with similar specifications and equal polarity requirements. Always verify exact compatibility before replacement.

Technical note

Expert tip

The 70mm depth designation indicates the distance from the mounting surface to the front of the breaker, which is relevant for enclosure design.

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Frequently asked questions

What is the difference between a C-curve and a D-curve breaker like the 5SJ4102-7HG40?

A C-curve breaker (like the 5SJ4102-7HG40) trips between 5 to 10 times its rated current, suitable for loads with moderate inrush. A D-curve breaker trips between 10 to 20 times its rated current, designed for loads with very high inrush, such as large motors or transformers.