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Siemens 5SJ4330-8HG41 3-Pole D-Curve Miniature Circuit Breaker

Siemens 5SJ4330-8HG41 Miniature 3-pole D-curve Circuit Breaker

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ManufacturerSiemens

Part number5SJ4330-8HG41

Type Miniature Circuit Breaker

Poles 3

Rated Current 30A

Tripping Characteristic D

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3-pole protection D-curve tripping for high inrush 10kA interrupting rating UL 489 listed 70mm width Motor application suitability

Product description

The Siemens 5SJ4330-8HG41 is a 3-pole miniature circuit breaker featuring a D-curve tripping characteristic, specifically designed for circuits with high inrush currents like motors. It has a 30A rated current, a 10kA breaking capacity at 240V, and meets UL 489 standards. The unit measures 70mm in width.

This breaker is ideal for motor protection, transformer circuits, and other inductive loads that experience significant startup surges. Its applications are common in industrial machinery, manufacturing environments, and automation control panels.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SJ4330-8HG41. We are committed to providing reliable, cost-effective industrial automation solutions. Trust Stanlo to help you maintain your operations with quality surplus components.

Technical specifications

Type	Miniature Circuit Breaker
Poles	3
Rated Current	30A
Tripping Characteristic	D
Breaking Capacity	10kA @ 240V
Width	70mm
Standard	UL 489

Common applications

Motor protection

Circuits with high inrush

Transformers

Industrial machinery

Manufacturing

Automation control panels

Compatible systems

Compatible with standard DIN rail mounting systems.

Also known as

Siemens 5SJ4330-8HG41

Replaces / compatible with

This D-curve breaker can replace Siemens or other manufacturers' 3-pole, 30A miniature circuit breakers rated for high inrush current applications per UL 489.

Technical note

Expert tip

The 70mm width is a standard dimension for this type of 3-pole breaker, crucial for panel space planning.

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Frequently asked questions

What is the primary advantage of the D-curve on the Siemens 5SJ4330-8HG41?

The D-curve on the Siemens 5SJ4330-8HG41 allows it to handle high inrush currents, typically associated with starting motors or energizing transformers, without tripping prematurely. This makes it ideal for motor protection.