Square D HJL36100U44X - 100 A, 3-Pole Circuit Breaker | AmpState

Discover reliable protection with the Square D HJL36100U44X, a 100 A, 3-pole molded-case circuit breaker engineered to safeguard branch circuits in panelboards and load centers. Built for predictable, repeatable performance, this unit delivers dependable overcurrent and short-circuit protection across residential, commercial, and light industrial environments.

Key benefits that stand out

• Space-efficient molded-case design that frees panel room and simplifies layout in crowded panels.
• Thermal-magnetic trip unit provides stable, repeatable protection across temperature swings and load variations, reducing nuisance trips while guarding against faults.
• 3-pole configuration suited for 3-phase systems, ensuring balanced protection for all phases.
• 100 A rating delivers robust protection for feeders and branch circuits without unnecessary interruptions.
• OEM-compatible with matching Square D load centers and panelboards to ensure a clean, reliable installation.

Where it shines — practical applications

Ideal for upgrading or replacing breakers in:

• Commercial lighting and receptacle circuits in mid-size offices or stores.
• Small motor loads in light industrial equipment and HVAC controls.
• Residential or multifamily applications where a compact, dependable protection solution is needed in the main or sub-panels.

How it works and why it matters

When current exceeds safe levels, the thermal element senses heat from overloads, and the magnetic element responds to short circuits with a fast trip. The result is precise protection that prevents damage to wiring and equipment while minimizing unnecessary trips during normal startup surges.

Technical specifications

• Manufacturer: Square D
• Part Number: HJL36100U44X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Secure this dependable Square D breaker from AmpState and ensure your panel protection aligns with your system’s needs. Ready for installation in appropriate Square D OEM load centers and panelboards, the HJL36100U44X is a practical, durable choice for maintaining electrical safety and reliability.