Square D HJA36100 - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D HJA36100 is a 100 A, 600 V, 3-pole plug-in molded case circuit breaker designed to deliver reliable branch-circuit protection in panelboards and load centers. Built for fast, trouble-free service, it anchors critical protection in electrical distributions for homes, offices, and light industrial environments.

• Fast plug-in connection enables quick installation and replacement, minimizing downtime during panel servicing.
• Thermal-magnetic trip unit provides stable, repeatable protection performance across operating conditions, responding promptly to overloads and short circuits.
• 3-pole design supports three-phase systems common in commercial and light industrial settings.
• OEM-compatible designed to work with matching Square D OEM load centers and panelboards for a seamless fit and coordinated protection.
• Versatile application suitable for residential, commercial, and light industrial electrical distributions needing dependable 100 A protection at up to 600 V.

What you gain with the HJA36100

This plug-in molded case circuit breaker isn’t just a safety device—it’s a maintenance-friendly component that simplifies panel upgrades or replacements. The 3-pole configuration ensures proper protection for three-phase circuits, while the 100 A rating suits common feeders and branch circuits in medium-load installations. With a 600 V rating, it accommodates a wide range of distribution schemes while aligning with your existing gear.

Technical specifications

• Manufacturer: Square D
• Part number: HJA36100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection