Square D HGA36100 - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D HGA36100 - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker from AmpState is a rugged molded‑case breaker built to shield your panelboards and load centers from dangerous overcurrent and short‑circuit events. Its quick plug‑in design means faster installation and easier field replacements, helping you minimize downtime without compromising protective performance.

Designed to deliver dependable, repeatable protection in demanding environments, this unit uses a thermal‑magnetic trip system that responds to both overloads and short circuits. The thermal element provides smooth, predictable protection for routine load variations, while the magnetic element delivers a sharp trip on high‑fault conditions, preserving wiring and equipment.

Key advantages

• Fast plug‑in connection: Simplifies installation and rapid replacement, reducing panel downtime during upgrades or service calls.
• Thermal‑magnetic protection: Combines precise overload sensing with strong short‑circuit immediate response for reliable circuit safety.
• 3‑pole design for 3‑phase systems: Ideal for commercial and light industrial panels that require coordinated phase protection.
• 600 V rating: Suitable for higher voltage distribution within controlled environments and compatible installations.
• 100 A branch circuit protection: Adequate for loads demanding robust protection while allowing practical circuit capacity.
• OEM‑grade compatibility: Engineered to work with matching Square D OEM load centers and panelboards for a seamless fit and predictable performance.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: HGA36100
• 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

Who it’s for and practical use cases

• Office buildings, retail spaces, and light industrial facilities that rely on reliable 3‑phase protection in their distribution panels.
• Technicians upgrading aging panels or performing scheduled panel maintenance where rapid, secure plug‑in replacements minimize downtime.
• Systems requiring OEM‑aligned components to maintain panel labeling, wiring diagrams, and warranty considerations.
• Projects where minimizing panel wiring complexity is important, thanks to a clean plug‑in connection that reduces field wiring effort.

Why this Square D breaker stands out

When you’re upgrading or stocking spare parts, matching the exact OEM spec matters. The HGA36100’s plug‑in format, 3‑pole architecture, and thermal‑magnetic protection are tailored for streamlined integration in Square D panelboards and load centers. It’s a purpose‑built solution for dependable branch circuit protection that reduces nuisance trips while delivering strong fault currents handling. In scenarios where uptime and reliability are critical—servers, lighting in commercial spaces, or equipment rooms—this breaker helps keep systems safe and online.

Tips for installation and optimal use

• Always verify compatibility with the specific Square D OEM panelboard or load center model before replacement.
• Power down and lockout/tagout the main circuit before installing or removing a plug‑in breaker to ensure safe service.
• For best results, pair this 100 A, 3‑pole unit with matching panel labeling and field‑service procedures to maintain consistent protection settings.
• Use as part of a coordinated protection scheme in 3‑phase electrical systems to maintain balanced fault response across all phases.