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Siemens 5SJ4101-8HG42 1-Pole 1A Circuit Breaker — 10kA

Siemens 5SJ4101-8HG42 1-pole circuit breaker.

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ManufacturerSiemens

Part number5SJ4101-8HG42

Poles 1

Current Rating 1A

Breaking Capacity 10kA

Tripping Characteristic D

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Veteran-owned

CAGE: 9NK75

10kA breaking capacity D-curve tripping UL 489 listed Single pole design Reliable Siemens quality

Product description

The Siemens 5SJ4101-8HG42 is a 1-pole miniature circuit breaker designed for reliable overcurrent protection. It features a D-curve tripping characteristic, a rated current of 1A, and a short-circuit breaking capacity of 10kA. This breaker is UL 489 listed for 277V applications, ensuring compliance with stringent safety standards.

This circuit breaker is suitable for various industrial and commercial applications, including protecting electrical circuits in control panels, machinery, and building installations. Its D-curve is ideal for loads with high inrush currents, such as transformers or motor loads, preventing nuisance tripping while ensuring adequate protection.

Stanlo Automation, a veteran-owned business, offers a wide selection of Siemens circuit breakers and other industrial automation components. We provide reliable surplus parts with expert knowledge and dedicated customer service to help you find the right solution for your needs.

Technical specifications

Poles	1
Current Rating	1A
Breaking Capacity	10kA
Tripping Characteristic	D
Voltage Rating	277V AC
UL Standard	UL 489

Common applications

Industrial control panels

Machinery protection

Building electrical systems

Motor protection

Transformer circuits

Compatible systems

Control panels Distribution boards Industrial machinery

Also known as

Siemens 5SJ4101 5SJ4101-8HG42 breaker Siemens miniature circuit breaker

Replaces / compatible with

This part is a direct replacement for Siemens 5SJ4101 series circuit breakers with similar specifications. Always verify exact compatibility before replacement.

Technical note

Expert tip

Ensure proper wire termination to the specified torque for safe and reliable operation according to UL 489 standards.

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Frequently asked questions

What is the breaking capacity of the Siemens 5SJ4101-8HG42 circuit breaker?

The Siemens 5SJ4101-8HG42 circuit breaker has a breaking capacity of 10kA. This rating indicates its ability to safely interrupt fault currents without damage, ensuring electrical system safety.