Square D HGL36100U31X - 100 A, 3-Pole Circuit Breaker | AmpState

Square D HGL36100U31X is a 100A, 3-pole molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Available through AmpState, this unit combines a compact footprint with robust protection, making it a practical upgrade or replacement for residential, commercial, and light industrial electrical systems.

• Compact molded-case design minimizes panel footprint, freeing valuable space for wiring and future expansion.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding effectively to both gradual overcurrent and instantaneous short-circuit events.
• OEM-compatible designed to work seamlessly with matching OEM loadcenters and panelboards for a reliable, trouble-free installation.
• 100A, 3-pole configuration suits multi-wire and three-phase applications where appropriate, delivering precise protection for larger circuits.
• Versatile applications ideal for protecting branch circuits in residential service panels, commercial electrical installations, and light industrial equipment setups.

Technical snapshot

• Manufacturer: Square D
• Part Number: HGL36100U31X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Why this model stands out

Choosing the HGL36100U31X ensures compatibility with Square D’s OEM panelboards, reducing installation challenges and ensuring consistent performance across your electrical system. The three-pole design supports multi-wire circuits and aligns with standard panel configurations, while the compact form factor helps maximize space for wiring and labeling. It’s a practical, reliable choice when you need a proven solution that aligns with existing panel infrastructure.

Practical tips for installation and use

Confirm panelboard compatibility with the HGL36100U31X before installation. Plan wiring paths to take advantage of the breaker’s compact profile, and reference panel labeling to verify 100A, 3-pole protection aligns with the circuit requirements. If you’re upgrading an existing panel, selecting a matching Square D series breaker can simplify replacement and maintain uniform trip characteristics.