Square D HLA36070 - 70 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D HLA36070 is a 70 A, 600 V, 3-pole plug-in molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for both residential setups and light commercial or industrial applications, this unit provides robust protection where it matters most.

Key benefits that keep your panels running

• Fast plug-in connection: Quick installation and straightforward replacement minimize downtime during service or upgrades.
• Thermal-magnetic trip unit: Combines thermal overload protection with instantaneous magnetic trip for reliable, repeatable protection against both sustained overloads and sudden short circuits.
• OEM compatibility: Designed to be compatible with matching Square D OEM load centers and panelboards, ensuring proper fit and reliable performance.
• Three-pole design for three-phase systems: Suitable for 3-phase electrical distribution in commercial and light-industrial environments, helping protect multiple conductors with a single device.

Technical snapshot

• Manufacturer: Square D
• Part number: HLA36070
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 70 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Use the HLA36070 when you need reliable protection for three-phase panelboards and load centers in spaces like small to mid-size commercial offices, retail locations, light manufacturing, and service areas. It’s an excellent replacement option for aging breakers in compatible Square D panels, delivering quick downtime recovery and consistent protection performance.

Why this 3-pole plug-in breaker stands out

• Designed for rapid serviceability with a plug-in connection that reduces installation time and simplifies maintenance.
• The thermal-magnetic trip system provides precise, repeatable protection, helping prevent nuisance trips while safeguarding equipment and wiring.
• Compatibility with Square D OEM load centers and panelboards streamlines upgrades and ensures cohesive protection across your distribution system.
• 3-pole configuration supports three-phase circuits, making it a practical choice for commercial and light industrial electrical feeds.

Practical installation tips

• Verify panel compatibility by confirming the panel is designed for plug-in molded case breakers in the Square D HLA series and that the bus stabs match the breaker style.
• When replacing an aging unit, ensure the replacement matches the original amperage, voltage rating, and pole count to maintain system protection ratings.
• Plan for proper clearance and torque per your panel’s guidelines, and confirm that the surrounding wiring is rated for 600 V and 70 A service.

With the Square D HLA36070, you get a purpose-built, three-phase plug-in circuit breaker that blends rapid serviceability with dependable thermal-magnetic protection. It’s a precise fit for compatible panels, designed to keep your electrical system safe, compliant, and ready for steady operation in demanding environments.