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Siemens 5SJ4 Miniature Circuit Breaker - 5A, D-Curve, 14kA

Siemens 5SJ4 2-pole miniature circuit breaker, 5A, D-curve, 14kA.

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ManufacturerSiemens

Part number5SJ4211-8HG41

Poles 2

Rated Current 5A

Tripping Curve D

Breaking Capacity 14kA

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2-pole design D-curve tripping characteristic 14kA breaking capacity UL 489 listed 5A rated current Handles high inrush

Product description

The Siemens 5SJ4211-8HG41 is a 2-pole miniature circuit breaker featuring a D-curve tripping characteristic, ideal for circuits with high inrush currents. It has a rated current of 5A and a substantial breaking capacity of 14kA, ensuring robust protection. This breaker operates at 240V and has a depth of 70mm, meeting UL 489 standards.

This circuit breaker is particularly suited for protecting small motor loads, transformers, and other equipment that experience significant starting currents. The D-curve characteristic prevents nuisance tripping during startup while providing reliable protection against short circuits.

Stanlo Automation, your veteran-owned source for surplus industrial automation parts, offers the Siemens 5SJ4211-8HG41. We provide quality components and reliable service to support your automation needs.

Technical specifications

Poles	2
Rated Current	5A
Tripping Curve	D
Breaking Capacity	14kA
Voltage Rating	240V
Depth	70 mm
Standard	UL 489

Common applications

Small motor protection

Transformer circuits

Industrial machinery

High starting current loads

Power distribution

Compatible systems

240V AC circuits UL 489 compliant electrical installations Motor control circuits

Also known as

Siemens 5SJ4 D-curve 5A breaker 5SJ4211-8HG41 breaker Siemens 240V D-curve 5A

Replaces / compatible with

This breaker can replace older Siemens 5SJ series models or other UL 489 compliant 2-pole, 5A, D-curve circuit breakers.

Technical note

Expert tip

When protecting small motors, ensure the breaker's D-curve rating is appropriately matched to the motor's locked-rotor current to prevent premature tripping.

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Frequently asked questions

What makes the Siemens 5SJ4211-8HG41 suitable for motor protection?

The Siemens 5SJ4211-8HG41 features a D-curve tripping characteristic, which allows for higher inrush currents during motor startup (10-20 times the rated current) without tripping. This ensures reliable motor operation while still providing essential short-circuit protection.