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Siemens HEG3B040L VL Series 40A 3-Pole Circuit Breaker

Siemens HEG3B040L 40A 3-Pole Molded Case Circuit Breaker

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ManufacturerSiemens

Part numberHEG3B040L

Amperage 40A

Voltage 600V AC

Poles 3

Interrupt Rating 65kA@480V / 25kA@600V

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CAGE: 9NK75

Thermal Magnetic Trip Unit Long-Time and Instantaneous Protection 65kAIC Interrupt Rating at 480V VL Series Quality EG Frame Design 600V AC Operation Load Lugs Included

Product description

The Siemens HEG3B040L is a 3-pole molded case circuit breaker from the VL Series, utilizing an EG Frame. It features a thermal magnetic trip unit with LI (Long-Time and Instantaneous) functions, rated for 40A and 600V. This breaker offers a significant interrupting capacity, with 65kA at 480V and 25kA at 600V, ensuring robust protection [3, 5, 12, 33]. It is designed for panelboard applications and features load lugs.

This circuit breaker is ideal for commercial and industrial electrical distribution systems, providing reliable overcurrent protection. Its specifications allow for effective safeguarding of circuits in various applications, including HVAC equipment and general power distribution.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens HEG3B040L. We provide access to quality surplus automation components, competitive pricing, and dedicated customer support to meet your industrial needs.

Technical specifications

Amperage	40A
Voltage	600V AC
Poles	3
Interrupt Rating	65kA@480V / 25kA@600V
Frame Type	EG
Trip Type	Thermal Magnetic (LI)
Connection	Load Lug
Series	VL

Common applications

Panelboard Protection

Industrial Electrical Distribution

Commercial Electrical Systems

HVAC Equipment

Machine Control

Compatible systems

Panelboards Industrial Electrical Enclosures HVAC Control Panels

Also known as

Siemens HEG3B040L Circuit Breaker Siemens 40A 3P EG Frame Breaker VL Series HEG3B040L

Replaces / compatible with

The Siemens HEG3B040L is part of the VL Series with an EG Frame. While discontinued by the manufacturer, it remains a viable option for existing systems. Replacements should be verified for compatibility.

Technical note

Expert tip

The HEG3B040L, featuring load lugs and a 600V rating, is well-suited for applications requiring reliable circuit protection in diverse industrial and commercial panelboards.

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Frequently asked questions

What is the interrupting capacity of the Siemens HEG3B040L circuit breaker?

The Siemens HEG3B040L circuit breaker has an interrupting capacity of 65kA at 480V and 25kA at 600V. This ensures it can safely interrupt fault currents in a variety of electrical systems.