Square D HJA261501 - 150 A, 2-Pole Plug-In Circuit Breaker | AmpState

Designed for dependable branch circuit protection, the Square D HJA261501 is a 150A, 2-pole plug-in molded case circuit breaker built to stand up to the everyday demands of panelboards and load centers. With a fast plug-in connection and a thermal-magnetic trip unit, this breaker delivers reliable protection you can trust when it matters most.

Fast, tool-friendly installation – The plug-in mounting style simplifies installation and replacement, reducing downtime during panel maintenance or reconfigurations. This means quicker upgrades to your electrical system and fewer service interruptions for your customers or building occupants.

• Thermal-magnetic protection – The dual-action trip mechanism provides stable, repeatable overcurrent protection for both sustained overloads and short circuits, helping to minimize nuisance trips while safeguarding connected loads.
• 2-pole design – Delivers coordinated protection for both conductors in multi-wire branch circuits, reducing the risk of neutral issues and improving overall system safety.
• 150A rating – Suitable for medium-to-high demand panels, supporting large branch circuits and feeders in residential, commercial, and light industrial settings.
• OEM-compatible – Engineered to integrate with matching OEM load centers and panelboards, ensuring reliable fit and performance when upgrading or stocking replacement parts.

Why this breaker matters

• – From home electrical panels to small commercial spaces and light industrial installations, this 150A 2-pole breaker delivers consistent protection across a range of applications.
• – The plug-in design is purpose-built for fast replacement, which means faster service calls and reduced labor time during panel servicing.
• – With a thermal-magnetic trip unit, you get predictable protection curves that help you design safer circuits and reduce the likelihood of unexpected outages.

Technical snapshot

• Manufacturer: Square D
• Part Number: HJA261501
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150A
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

This breaker is an excellent choice for electrical pros who need a robust, easy-to-install solution that aligns with existing Square D panel systems. Whether you’re upgrading a panelboard, stocking replacements for a service fleet, or specifying components for a new build, the HJA261501 delivers precise protection, straightforward installation, and long-term reliability for residential, commercial, and light industrial projects.