Square D HGA261501 - 150 A, 600 V, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D HGA261501 is a 150A, 600V, 2-pole plug-in molded case circuit breaker designed to deliver fast, dependable protection for branch circuits in panelboards and load centers. Built for quick installs and easy replacements, this unit keeps your electrical system protected with minimal downtime.

What makes this breaker stand out

• Fast plug-in connection enables rapid installation and straightforward swaps in existing panelboards and load centers, reducing service interruptions during maintenance or upgrades.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining thermal overload protection with magnetic short-circuit protection, helping to prevent nuisance trips while ensuring rapid response to faults.
• OEM-compatible design is ready for use with matching Square D load centers and panelboards, ensuring proper fit, listing, and reliable performance in the intended system.
• Versatile application suitable for residential, commercial, and light industrial environments where reliable branch circuit protection is essential.

Technical snapshot

• Manufacturer: Square D
• Part Number: HGA261501
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150A
• Voltage Rating: 600V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and real-world benefits

Whether upgrading an aging panel or stocking a spare for routine maintenance, the HGA261501 is purpose-built to protect critical circuits with precision. It’s particularly well-suited for:

• Residential service panels undergoing upgrades or replacements where a quick plug-in solution minimizes downtime
• Commercial distribution panels that require reliable two-pole protection for shared loads
• Light industrial panels where robust short-circuit protection at the 150A level helps safeguard equipment

How it supports safety and reliability

The two-pole design ensures both hot conductors are disconnected simultaneously, reducing arc risk and improving fault isolation. The thermal-magnetic trip mechanism delivers consistent tripping behavior across varying temperatures and load conditions, helping to prevent unexpected outages and protect wiring and devices connected to the branch circuit.

Installation and compatibility tips (practical guidance)

Plan for a seamless upgrade by confirming panel compatibility with the matching OEM load centers and panelboards. The plug-in mounting style is designed for straightforward insertion into compatible buses, making field replacement or initial installation efficient and less error-prone. Follow standard electrical safety practices and manufacturer instructions when installing or replacing any circuit breaker.

In summary, the Square D HGA261501 blends a high current rating with reliable thermal-magnetic protection and quick-install plug-in design, delivering a practical, durable solution for protecting branch circuits in a variety of settings.