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Siemens 5SJ4218-7HG42 SENTRON Circuit Breaker | 15A 2-Pole 480Y/277V

Siemens 5SJ4218-7HG42 2-Pole Miniature Circuit Breaker

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ManufacturerSiemens

Part number5SJ4218-7HG42

Poles 2

Current Rating 15A

Voltage Rating 480Y/277V AC

Interrupting Capacity 10kA

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2-pole design 15A current rating 10kA interrupting capacity C-curve tripping 480Y/277V rating UL 489 listed

Product description

The Siemens 5SJ4218-7HG42 is a 2-pole miniature circuit breaker from the SENTRON series, engineered for high-performance circuit protection. It is rated for 480Y/277V AC and has a 15A current rating, with a 10kA interrupting capacity. This breaker utilizes a thermal magnetic tripping mechanism and is compliant with UL 489 standards, ensuring reliable protection against overloads and short circuits.

This circuit breaker is designed for demanding applications in industrial and commercial environments, offering essential protection for electrical systems and personnel. Its DIN rail mountable design allows for easy integration into control panels and electrical distribution systems.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SJ4218-7HG42. We provide dependable access to essential automation components, ensuring you can maintain your operations with quality surplus parts at competitive prices.

Technical specifications

Poles	2
Current Rating	15A
Voltage Rating	480Y/277V AC
Interrupting Capacity	10kA
Tripping Curve	C
Mounting	DIN Rail
Standards	UL 489

Common applications

Industrial control panels

Electrical distribution systems

Branch circuit protection

High voltage applications

Overload protection

Compatible systems

Designed for use in standard industrial control panels and electrical distribution systems that require UL 489 compliance.

Also known as

Siemens SENTRON 5SJ4218-7HG42 5SJ42187HG42 Siemens 15A 480V circuit breaker

Replaces / compatible with

Compatible with Siemens 5SJ4 series accessories and can replace older Siemens circuit breakers with similar ratings and specifications.

Technical note

Expert tip

The '480Y/277V' rating indicates suitability for both three-phase and single-phase systems operating at these voltages.

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Frequently asked questions

What is the voltage rating for the Siemens 5SJ4218-7HG42 circuit breaker?

The Siemens 5SJ4218-7HG42 miniature circuit breaker is rated for 480Y/277V AC. It is designed to meet UL 489 standards for branch circuit protection in higher voltage applications.