Square D HGA36100U31X - 100 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D HGA36100U31X is a rugged 100A, 600V, 3-pole plug-in molded case circuit breaker designed to protect each branch of your panelboard or load center with precision. Available from AmpState, this unit combines fast installation with reliable, repeatable protection for demanding electrical systems.

Why this breaker stands out

• Fast plug-in connection for quick installation and easy future replacements, minimizing panel downtime.
• Thermal-magnetic trip unit delivers stable, repeatable protection across varying temperatures and loads, helping prevent nuisance tripping while safeguarding downstream equipment.
• Three-pole design suited for 3-phase systems and multi-wire configurations, offering comprehensive protection where it’s needed most.
• OEM-compatible with matching Square D load centers and panelboards, ensuring seamless integration without adapters or modifications.
• Versatile applications ideal for residential, commercial, and light industrial settings where reliable branch-circuit protection is essential.

Technical snapshot

• Manufacturer: Square D
• Part Number: HGA36100U31X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios

This breaker is an excellent choice when replacing a failed unit in compatible Square D panels, or when building a robust, code-compliant electrical distribution for new installations. Use it to:

• Protect three-phase panelboard circuits in commercial spaces like offices, retail, or light manufacturing.
• Safeguard critical branch circuits in residential or multi-dwelling setups that rely on reliable trip performance.
• Provide swift, service-friendly plug-in replacement in aging or expanding electrical systems where downtime must be minimized.

How this compares to alternatives

Compared with generic or less-integrated breakers, the HGA36100U31X offers OEM-compatible form and function, ensuring dependable operation within Square D panel ecosystems. Its thermal-magnetic design emphasizes both safety and efficiency, reducing the risk of overcurrent damage while maintaining predictable trip characteristics across varying loads—an essential consideration for long-term reliability in panelboards and load centers.

Whether you're upgrading an existing Square D installation or outfitting a new, three-phase distribution layout, the HGA36100U31X from AmpState delivers a precise balance of installation simplicity, protection reliability, and compatible performance that electricians trust for enduring electrical safety.