Square D HDA36100U44X - 100 A, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D HDA36100U44X — a 100 A, 3-pole plug-in molded case circuit breaker built to protect your panelboards and load centers from overcurrent and short circuits. This unit is engineered for fast, reliable service in residential, commercial, and light industrial environments.

Why this breaker stands out

• Fast plug-in connection for quick installation and seamless replacement, reducing downtime during maintenance or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection as electrical loads fluctuate, mitigating nuisance trips while ensuring safety during fault events.
• OEM-compatible design made to integrate with matching Square D load centers and panelboards, ensuring a clean, reliable fit.
• Versatile application ideal for residential panels, commercial service equipment, and light-industrial distribution boards where dependable branch-circuit protection matters.

Technical snapshot

• Manufacturer: Square D
• Part Number: HDA36100U44X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Designed for real-world use

When you’re wiring or upgrading a panel, you need confidence that protection is precise and dependable. The HDA36100U44X delivers. Its thermal-magnetic mechanism responds to overloads and short circuits with speed and consistency, helping prevent wiring damage and electrical fires. The plug-in format simplifies retrofits and new installations alike, letting you align with the exact panelboard model you’re using without compatibility guesswork.

Ideal scenarios

• Replacing aging breakers in residential main service panels where 100 A capacity is required.
• Upgrading small commercial distribution boards that demand reliable 3-pole protection for three-phase circuits.
• Installing compatible Square D load centers in light industrial settings where quick swaps minimize downtime.

Choose the Square D HDA36100U44X for a precise, durable solution that harmonizes with your existing panel ecosystem while delivering clear protection for your electrical circuits.