Square D HRA36100U31X - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D HRA36100U31X is a 100 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.

Engineered for fast, hassle-free installation, this breaker features a plug-in connection that simplifies swaps and replacements, reducing downtime during service or upgrades. Its thermal-magnetic trip unit provides stable, repeatable protection performance, automatically responding to both overloads and short circuits to safeguard wiring and equipment.

• Three-pole design supports 3-phase systems for balanced protection in commercial and light industrial environments.
• Plug-in molded case enables quick installation and straightforward maintenance.
• Thermal-magnetic trip delivers reliable protection against overcurrent and short-circuit events.
• 100 A, 600 V rating suitable for higher voltage panelboards and load centers.
• OEM compatibility designed to be used with matching Square D load centers and panelboards.
• Versatile applications appropriate for residential, commercial, and light industrial settings.

This model, part number HRA36100U31X, is purpose-built for branch circuit protection, helping you prevent damage from overloads and electrical faults while keeping critical power systems online. Its plug-in design and compatibility with Square D OEM panels make it a practical choice for electricians, facilities managers, and panel service technicians looking to minimize install time and maximize reliability.

At a glance:

• Manufacturer: Square D
• Part Number: HRA36100U31X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 100 A
• Voltage: 600 V
• Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D HRA36100U31X when you need a reliable, easy-to-install protection solution that aligns with your existing Square D panel ecosystem, minimizes downtime, and provides robust protection for diverse electrical environments.