Square D HGL26040 - 40 A, 600 V, 2-Pole Circuit Breaker | AmpState

Introducing the Square D HGL26040, a 40-amp, 600-volt, 2-pole molded case circuit breaker designed to deliver reliable branch circuit protection for panelboards and load centers. With its compact profile and robust thermal-magnetic trip unit, this breaker keeps circuits safe from overloads and short circuits while maximizing usable panel space.

What makes it stand out

• Compact molded-case design that helps you fit more circuits in the same panel footprint.
• Thermal-magnetic trip unit provides stable, repeatable protection across temperature variations and load conditions.
• Direct compatibility with matching OEM Square D load centers and panelboards, ensuring a seamless replacement or upgrade.
• Versatile for residential, commercial, and light industrial applications, covering a wide range of protection needs.

Key specifications

• Manufacturer: Square D
• Part Number: HGL26040
• Type: Thermal-magnetic molded-case circuit breaker (MCCB)
• Amperage rating: 40A
• Voltage rating: 600V
• Number of poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Practical uses and benefits

Ideal for electricians, facilities managers, and building owners who want dependable protection for everyday loads—from lighting and receptacle circuits in homes to feeders for small commercial equipment. In panel installations, it enables quick, reliable isolation of a fault, reducing downtime and preventing damage to downstream devices.

Compared to generic breakers, the Square D HGL26040 is designed specifically to integrate with Square D OEM configurations, reducing compatibility risks and simplifying service and replacements. Its 40A rating is well-suited for mid-range circuits, offering a balance between protection and compatibility with common loads and equipment.

Installation and best practices

• Use with compatible OEM load centers and panelboards for optimal performance and listing compliance.
• Verify the panel labeling and total load calculations to ensure the 40A rating matches the planned circuit load.
• Follow standard electrical safety practices during installation; ensure power is off and torque specs are observed on terminals (per manufacturer guidelines).
• Keep a spare matching breaker on hand for quick replacements, minimizing panel downtime during service events.

For aligned procurement, AmpState offers genuine Square D HGL26040 breakers, backed by robust product support and fast shipping to keep your electrical projects on schedule.