Square D HGA261254 - 125 A, 600 V, 2-Pole Plug-In Circuit Breaker | AmpState

Discover reliable, quick-to-service protection with the Square D HGA261254—a 125-amp, 600-volt, 2-pole plug-in molded case circuit breaker designed to safeguard branch circuits in panelboards and loadcenters. Built to pair perfectly with your existing Square D infrastructure, it delivers dependable overcurrent and short-circuit protection where it’s needed most.

• Fast plug-in connection — streamlined installation and rapid replacement, minimizing panel downtime during upgrades or service.
• Thermal-magnetic trip unit — provides stable, repeatable protection across a range of temperatures and electrical conditions for consistent performance.
• 125 A, 600 V, 2-pole design — robust protection for typical branch circuits in residential, commercial, and light industrial settings.
• Plug-in mounting — designed for straightforward seating into compatible panelboards and loadcenters, simplifying upgrades and maintenance.
• OEM compatibility — engineered to work seamlessly with matching Square D loadcenters, ensuring predictable protection and interoperability with your existing equipment.

Technical specifications

• Manufacturer: Square D
• Part number: HGA261254
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 125 A
• Voltage rating: 600 V
• Number of poles: 2
• Mounting style: Plug-in
• Applications: Branch circuit overcurrent and short-circuit protection

Who this is for and practical uses

This 2-pole plug-in breaker is ideal for electricians, facility managers, and maintenance teams seeking fast, reliable protection in both new installations and panel upgrades. Use cases include:

• Residential panels and subpanels that accept plug-in breakers for quick swaps during remodeling or load growth
• Commercial electrical rooms and light industrial panels where reliable 125 A protection at up to 600 V is required
• Feeder and branch circuit protection for equipment and lighting circuits in small to mid-size facilities

Why choose this Square D solution over alternatives

With the HGA261254, you gain a plug-in design that reduces installation time and service downtime without compromising protection quality. The thermal-magnetic trip mechanism delivers dependable response to both sustained overloads and short-circuit events, helping to prevent damage and downtime. Its compatibility with matching OEM loadcenters means you can expand or upgrade your system with confidence, maintaining consistent protection and predictable performance across your panel network.

Tips for best results

• Verify panelboard compatibility with HGA-series plug-in breakers before installation to ensure proper fit and performance.
• Use the exact part number HGA261254 when sourcing a replacement to preserve intended protection characteristics.
• Plan replacements during scheduled maintenance to minimize disruption to critical circuits and ensure coordinated protection across the panel.