Square D HLA36150 - 150 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D HLA36150 is a 150 A, 600 V, 3-pole plug-in molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. This plug-in design simplifies installation and makes replacement fast, helping you minimize downtime during service or upgrades.

• Fast plug-in connection enables quick installation and straightforward replacement in compatible Square D panelboards and load centers, reducing field labor and downtime.
• Thermal-magnetic trip unit provides stable, repeatable protection across a range of loads and temperatures, helping keep sensitive equipment safe from nuisance trips and sustained faults.
• Three-pole configuration supports 3-phase circuits, making it ideal for commercial and light industrial applications where balanced protection is essential.
• 600 V, 150 A rating covers medium-demand branch circuits with robust protection against overcurrent and short circuits.
• OEM-compatible fit designed to pair with matching Square D load centers and panelboards, ensuring reliable electrical coordination and ease of upgrade or replacement.

Where this breaker shines

Whether you're configuring a new electrical distribution setup or upgrading an aging panel, the HLA36150 delivers precise protection without complicating your panel design. It’s well suited for service entrances, distribution panels in small to mid-size facilities, and retrofit projects where fast, dependable protection is required.

Ideal use cases and scenarios

• Upgrading residential panelboards to accommodate higher loads or three‑phase equipment in light commercial settings.
• Replacing a failing breaker in an existing Square D system to restore reliable protection and minimize downtime.
• Installing new branch circuits in commercial or light industrial spaces that require solid thermal-magnetic protection with quick plug-in installation.

Technical snapshot

• Manufacturer: Square D
• Part Number: HLA36150
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Protecting your panelboard or load center with a trusted, field-proven solution matters. The Square D HLA36150 combines a fast, reliable plug-in design with a thermal-magnetic trip that adapts to real-world load patterns, delivering dependable protection for today’s electrical systems. For engineers, electricians, and facility managers seeking predictable performance and straightforward maintenance, this 3‑pole 150 A breaker is a practical, long‑term choice.