Square D HJL36100M73 - 100 A, 600 V, 3-Pole Circuit Breaker | AmpState

The Square D HJL36100M73 is a 100 A, 600 V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. From AmpState, this device combines rugged durability with precise protection for modern electrical systems.

Key benefits

• Compact molded case design maximizes panel space so you can fit more circuits without crowding the enclosure.
• Thermal-magnetic trip unit provides stable, repeatable protection by reliably responding to overloads and short circuits across a range of operating conditions.
• 3-pole configuration ideal for three-phase distribution, enabling robust protection in commercial and light industrial applications.
• 100 A, 600 V rating supports main or feeder protection in a variety of panelboards and loadcenters.
• OEM-compatible compatibility designed to pair with matching Square D OEM loadcenters and panelboards for easy installation and reliable performance.

Why this model matters for your electrical system

Choosing the HJL36100M73 means you’re opting for a protection device that not only blocks overloads and short circuits, but does so with precise trip characteristics that minimize nuisance trips. The compact MCCB design helps you maximize usable space inside panels, making it an excellent choice when upgrading existing installations or planning new panel configurations in spaces where every inch counts.

Ideal use scenarios

• Residential upgrades where a reliable 3-pole protection device is required in multi-panel layouts.
• Commercial panelboards and light industrial distributions needing robust branch circuit protection with space efficiency.
• Retrofit or replacement in compatible OEM panels, delivering consistent protection without compatibility concerns.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: HJL36100M73
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Compatible installation and practical tips

For trouble-free installation, pair this 3-pole MCCB with matching Square D OEM loadcenters and panelboards to ensure accurate trip coordination and reliable performance. Its compact form factor is especially beneficial when panel space is at a premium, such as in retrofit projects or multi-branch configurations. By aligning with standard industry practices for molded case breakers, the HJL36100M73 helps you maintain a clean, organized electrical distribution system with predictable protection characteristics.

Upgrade or specify a robust protection solution for your 100 A, 3-pole needs with the Square D HJL36100M73—combining space efficiency, dependable thermal-magnetic protection, and OEM-grade compatibility for residential, commercial, and light industrial applications.