Square D HGL26125 - 125 A, 2-Pole Circuit Breaker | AmpState

Square D HGL26125: 125 A, 2-Pole Molded Case Circuit Breaker

The Square D HGL26125 is a dependable 125A, two-pole molded case circuit breaker designed to protect branch circuits in panelboards and loadcenters. Its compact form frees up space in crowded panels while delivering reliable overcurrent and short-circuit protection for residential, commercial, and light industrial applications. When you need a trusted replacement or upgrade in an existing Square D system, this unit is engineered to perform with precision and durability.

What makes this breaker stand out

• Compact molded case design optimizes panel space without compromising protection, making it ideal for tight electrical enclosures and retrofit projects.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining a bimetallic thermal element for overloads with a magnetic trip for short circuits, ensuring fast, consistent fault clearing across varying conditions.
• 125A, 2-pole configuration delivers simultaneous protection for both hot conductors, improving safety and reducing nuisance trips on multi-wire circuits.
• OEM compatibility is designed to align with matching Square D loadcenters and panelboards, simplifying installation and ensuring reliable electrical contact and performance.
• Versatile applications well-suited for residential service panels, commercial distribution, and light industrial circuits requiring dependable protection at a mid-range amperage.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: HGL26125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 125A
• Number of poles: 2
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and guidance

- Upgrading aging panelboards in single- or multi-unit residences where a 125A, 2-pole solution provides reliable main or sub-feed protection.

- Installing in light commercial spaces such as offices or small retail outlets that require robust protection against sudden faults without expanding panel dimensions.

- Replacing a worn or tripped breaker in compatible Square D loadcenters to restore steady, predictable performance and maintain electrical safety standards.

Why choose the Square D HGL26125 for your system

This breaker delivers a balance of space efficiency, precise protection, and OEM compatibility that’s essential for maintaining long-term panel reliability. The thermal-magnetic trip mechanism means fewer nuisance trips and clearer fault indication, helping technicians diagnose issues quickly. When paired with matching Square D loadcenters, it provides consistent operation, straightforward installation, and a cohesive protection scheme across your electrical distribution.