Square D HDA36100 - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Introducing the Square D HDA36100 — a 100A, 600V, 3-pole plug-in molded case circuit breaker built for dependable branch circuit protection in panelboards and load centers. This device is designed to drop into compatible OEM panels with ease, delivering rapid installation and reliable protection where it matters most.

Key advantages

• Fast plug-in connection — enables quick installation and straightforward replacement, reducing downtime during upgrades or service calls.
• Thermal-magnetic trip unit — combines precise thermal overload protection with instantaneous magnetic trip for stable, repeatable response to faults.
• Three-pole design — ideal for three-phase systems common in commercial and light industrial settings, ensuring coordinated protection across all phases.
• 100A, 600V rating — capable of safely handling high-demand circuits while preserving system integrity in demanding environments.
• OEM compatibility — engineered to align with matching Square D load centers and panelboards for seamless retrofits and expansions.
• Versatile applications — suitable for residential, commercial, and light industrial electrical distributions that require reliable overcurrent and short-circuit protection.

What it means for your electrical system

• Reliable branch circuit protection that reduces the risk of damage from overloads and short circuits across three phases.
• Streamlined maintenance with a plug-in design that simplifies replacement without extensive panel rewiring.
• Consistent protection performance thanks to a thermal-magnetic trip unit that responds predictably to fault conditions.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: HDA36100
• 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

Ideal use cases

Whether you’re upgrading a residential service panel, outfitting a commercial load center, or provisioning a light industrial distribution, the HDA36100 delivers dependable performance. It’s particularly well-suited for systems where quick swaps are needed during maintenance windows or where reliable three-phase protection is essential for equipment like motors, HVAC controllers, and lighting mains.

Installation tips and best practices

• Verify your panelboard’s compatibility with Square D plug-in breakers to ensure a proper fit and electrical contact.
• Follow standard safety practices: de-energize the panel, use insulated tools, and torque terminals to the manufacturer’s specifications.
• When replacing an existing breaker, have a spare HDA36100 on hand to minimize panel downtime and ensure a smooth transition.

Choose the Square D HDA36100 for robust three-pole protection, fast plug-in installation, and dependable performance in panelboards and load centers. Available through AmpState, this authentic component helps keep electrical systems safe, compliant, and ready for the demands of modern installations.