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Siemens 5SJ4306-8HG42 3-Pole D-Curve Circuit Breaker 6A 10kA

Siemens 5SJ4306-8HG42 3-pole D-curve miniature circuit breaker.

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ManufacturerSiemens

Part number5SJ4306-8HG42

Poles 3

Current Rating 6A

Tripping Characteristic D

Interrupting Capacity 10kA

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12-month warranty

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Veteran-owned

CAGE: 9NK75

3-pole design D-curve for high inrush currents 10kA interrupting capacity UL 489 listed Robust Siemens quality

Product description

The Siemens 5SJ4306-8HG42 is a high-performance 3-pole miniature circuit breaker designed for reliable overcurrent protection. It features a D-curve tripping characteristic, a 6A rated current, and a significant 10kA interrupting capacity, ensuring robust safety in demanding applications. This breaker is UL 489 listed for 480Y/277V systems, making it suitable for a wide range of industrial and commercial power distribution needs.

This circuit breaker is ideal for protecting electrical installations and equipment against short circuits and overloads in various industrial environments. Its D-curve is optimized for applications with high inrush currents, such as motors or transformers. Industries that benefit from this reliable protection include manufacturing, automation, and building services.

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Technical specifications

Poles	3
Current Rating	6A
Tripping Characteristic	D
Interrupting Capacity	10kA
Voltage Rating	480Y/277V AC
Standard	UL 489

Common applications

Motor protection

Transformer protection

Industrial control panels

Power distribution

Electrical safety

Compatible systems

UL 489 panels 480Y/277V electrical systems Industrial control systems

Also known as

Siemens 5SJ4 D-curve breaker 5SJ4 Series circuit breaker Siemens 6A 3-pole breaker

Replaces / compatible with

This circuit breaker is designed to replace older Siemens 3RV series components or similar 3-pole, 6A, D-curve breakers meeting UL 489 standards.

Technical note

Expert tip

Ensure proper conductor termination according to Siemens guidelines to maintain the UL 489 rating and breaker performance.

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Frequently asked questions

What type of loads is the Siemens 5SJ4306-8HG42 circuit breaker best suited for?

The 5SJ4306-8HG42 features a D-curve tripping characteristic, which is specifically designed to handle high inrush currents. This makes it ideal for protecting inductive loads like motors, transformers, and other equipment that experience a significant surge of current upon startup.