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Siemens 5SJ4330-8HG42 3-Pole D-Curve Circuit Breaker - 30A

Siemens 5SJ4330-8HG42 3-pole D-curve miniature circuit breaker, 30A.

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ManufacturerSiemens

Part number5SJ4330-8HG42

Type Miniature Circuit Breaker

Manufacturer Siemens

Part Number 5SJ4330-8HG42

Poles 3

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3-pole configuration D-curve tripping characteristic 10kA interrupting capacity UL 489 listed Robust construction Reliable overcurrent protection

Product description

The Siemens 5SJ4330-8HG42 is a 3-pole miniature circuit breaker designed for reliable overcurrent protection. It features a D-curve tripping characteristic, a 10kA interrupting rating, and is rated for 30A at UL 489-480Y/277V.

This circuit breaker is suitable for a wide range of industrial and commercial applications, including motor protection, power distribution, and control panel installations where specific inrush current handling is required. It is commonly found in machine building, electrical infrastructure, and automation systems.

As a veteran-owned surplus parts distributor, Stanlo Automation offers competitive pricing and readily available stock of the Siemens 5SJ4330-8HG42, ensuring quick delivery to minimize downtime for your critical operations.

Technical specifications

Type	Miniature Circuit Breaker
Manufacturer	Siemens
Part Number	5SJ4330-8HG42
Poles	3
Current Rating	30A
Trip Curve	D
Interrupting Rating	10kA
Voltage Rating	UL 489-480Y/277V
Series	5SJ4

Common applications

Motor Protection

Power Distribution

Control Panels

Industrial Automation

Machine Building

Electrical Infrastructure

Compatible systems

UL 489 compliant systems Industrial control panels Motor control circuits

Also known as

Siemens 5SJ4330-8HG42 breaker 3-pole 30A Siemens breaker Siemens D-curve breaker

Replaces / compatible with

This circuit breaker is designed to replace older Siemens circuit breakers with similar specifications within the 5SJ4 series or compatible applications.

Technical note

Expert tip

Ensure proper wire sizing and torque specifications are followed during installation to maintain the UL rating and ensure safe operation.

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Frequently asked questions

What is the interrupting rating of the Siemens 5SJ4330-8HG42 circuit breaker?

The Siemens 5SJ4330-8HG42 circuit breaker has an interrupting rating of 10kA. This rating indicates its ability to safely interrupt fault currents without damage.