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Siemens 5SJ4263-8HG41 2-Pole D-Curve 63A Circuit Breaker

Siemens 5SJ4263-8HG41 2-Pole, 63A, D-Curve Miniature Circuit Breaker.

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ManufacturerSiemens

Part number5SJ4263-8HG41

Number of poles 2

Rated current 63 A

Tripping characteristic D

Breaking capacity 10 kA

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2-pole protection 63A high current rating D-curve for high inrush loads 10kA breaking capacity UL 489 certified 70mm width

Product description

The Siemens 5SJ4263-8HG41 is a 2-pole miniature circuit breaker with a 63A rated current and a D-curve tripping characteristic. It offers a 10kA short-circuit breaking capacity, operates at 240V, and is UL 489 compliant. This model has a width of 70mm.

This high-capacity breaker with a D-curve is designed for protecting circuits with very high inrush currents, such as those found in large motors or transformer banks in industrial settings. The D-curve ensures it can handle temporary startup surges without tripping.

Stanlo Automation, a veteran-owned supplier of industrial surplus parts, provides the Siemens 5SJ4263-8HG41. We are committed to delivering quality components and fast shipping to keep your operations running efficiently.

Technical specifications

Number of poles	2
Rated current	63 A
Tripping characteristic	D
Breaking capacity	10 kA
Voltage rating	240V AC
Width	70 mm
Standard	UL 489

Common applications

Industrial motor circuits

Large transformer protection

High power distribution

Heavy machinery

Control systems

Circuits with high starting current

Compatible systems

Standard DIN rail mounting systems Siemens 5SJ4 series accessories

Also known as

Siemens 63A 2-pole D-curve breaker, 5SJ42638HG41, Siemens 5SJ4 63A

Replaces / compatible with

Compatible with Siemens 5SJ4 Series accessories and related components.

Technical note

Expert tip

For circuits with very high starting currents, verify that the D-curve rating of the 5SJ4263-8HG41 is adequate for the specific load's inrush requirements.

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Frequently asked questions

What are the advantages of using a D-curve breaker like the Siemens 5SJ4263-8HG41 for high inrush loads?

The D-curve on the Siemens 5SJ4263-8HG41 allows for significantly higher inrush currents during equipment startup compared to standard C-curve breakers. This prevents nuisance tripping while still providing essential overcurrent and short-circuit protection.