Square D HGA36150 - 150 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D HGA36150—a 150 A, 600 V, 3-pole plug-in molded case circuit breaker built to safeguard panels with reliability you can trust. Designed for fast installation and straightforward replacements, this breaker is a durable staple for electrical distribution across residential, commercial, and light industrial settings.

Why this breaker stands out

• Lightning-fast plug-in connection lets you install or swap the device quickly in compatible panelboards and load centers, reducing downtime and maintenance effort.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining overload sensing (thermal) with instantaneous short-circuit protection (magnetic), maintaining consistent performance across varying temperatures and loads.
• 3-pole, 150 A design for 3-phase systems—perfect for commercial panels and light industrial distributions that run on 3-phase power at up to 600 V.
• OEM-load center compatibility ensures seamless integration with matching Square D panelboards and load centers, preserving panel labeling and trip characteristics.
• Versatile for multiple environments—from office suites and retail spaces to light manufacturing and service facilities—where dependable branch-circuit protection is essential.

Technical snapshot

• Manufacturer: Square D
• Part number: HGA36150
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 150 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• New installations in commercial panelboards where clean, quick plug-in servicing minimizes downtime.
• Upgrading or replacing aging breakers in existing panels without rewiring or panel modifications.
• Three-phase distribution in light industrial facilities with a need for reliable, precise protection against both overloads and short circuits.
• Residential-commercial hybrids where panelboards service multiple circuits and require compatible, trusted OEM components.

Installation, maintenance, and care

To maximize performance and lifespan, install the HGA36150 in a compatible Square D panelboard or load center, following standard electrical codes and safety practices. The plug-in design allows rapid replacement if a fault occurs, reducing system downtime. Maintain supply compliance by pairing with matching devices in the same series and trip characteristics, and inspect connections at regular maintenance intervals to ensure a clean, tight fit.

What problems does it solve?

• Prevents unplanned outages from nuisance trips by delivering predictable, calibrated protection for 3-phase circuits.
• Speeds up field service with a straightforward plug-in swap, minimizing labor and downtime in critical electrical rooms.
• Ensures consistent protection performance across diverse environments, from air-conditioned offices to hot industrial spaces.

With the Square D HGA36150, you’re choosing a purpose-built, OEM-optimized solution for robust branch-circuit protection across 3-phase applications. It’s more than a breaker—it’s a reliable component in a safer, steadier electrical system.