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Siemens 5SJ4308-7HG42 3-Pole C-Curve Circuit Breaker 8A 10kA

Siemens 5SJ4308-7HG42 3-pole C-curve miniature circuit breaker.

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ManufacturerSiemens
Part number5SJ4308-7HG42
Poles 3
Current Rating 8A
Tripping Characteristic C
Interrupting Capacity 10kA
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3-pole design C-curve for moderate inrush currents 10kA interrupting capacity UL 489 listed Efficient overload protection

The Siemens 5SJ4308-7HG42 is a 3-pole miniature circuit breaker engineered for reliable protection against overcurrents. It features a C-curve tripping characteristic, an 8A rated current, and a 10kA interrupting capacity, ensuring safety and operational continuity. This breaker is compliant with UL 489 standards for 480Y/277V applications.

This circuit breaker is widely used in commercial and industrial settings for general-purpose circuit protection. Its C-curve is suitable for loads with moderate inrush currents, such as lighting circuits, outlets, and some smaller motor applications. It is a staple in electrical panels for automation systems and building infrastructure.

As a veteran-owned surplus parts distributor, Stanlo Automation offers the Siemens 5SJ4308-7HG42 at competitive prices. We understand the critical nature of industrial components and provide access to quality surplus inventory to keep your operations running smoothly. Source your Siemens circuit breakers from Stanlo Automation.

Poles3
Current Rating8A
Tripping CharacteristicC
Interrupting Capacity10kA
Voltage Rating480Y/277V AC
StandardUL 489
General purpose circuits
Lighting circuits
Outlet circuits
Small motor protection
Industrial automation
UL 489 rated electrical panels 480Y/277V AC systems Commercial and industrial power distribution
Siemens 5SJ4 C-curve breaker 5SJ4 Series 8A breaker Siemens 3-pole 8A MCB
This breaker can replace older Siemens circuit breakers or other brands with similar 3-pole, 8A, C-curve specifications compliant with UL 489.
Expert tip
The C-curve trip is designed for circuits where normal operating currents are not exceeded by more than 10 times the rated current during startup.
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What is the interrupting capacity of the Siemens 5SJ4308-7HG42 circuit breaker?
The Siemens 5SJ4308-7HG42 circuit breaker has an interrupting capacity of 10kA (kiloamperes). This means it can safely interrupt fault currents up to this level without sustaining damage, providing essential protection against severe short circuits.