Square D HLA36100SP 100A 3-Pole 600 V Circuit Breaker

The Square D HLA36100SP is a robust three‑pole circuit breaker designed to safeguard larger 3‑phase electrical systems. With a 100 A current rating and a 600 V maximum, this part — HLA36100SP — delivers reliable protection for demanding industrial and commercial applications while fitting seamlessly into compatible Square D panels and distribution setups.

Specs at a glance

• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HLA36100SP
• Brand: Square D

Why this 3‑pole 600 V breaker matters

Three‑pole protection is essential for accurate safeguarding of 3‑phase circuits used by motors, conveyors, and other heavy loads. The 100 A rating ensures you can shield wiring and equipment from overloads and short circuits, while the 600 V rating accommodates a wide range of industrial and commercial power systems. This breaker is designed to provide dependable interruption when faults occur, helping minimize downtime and damage in demanding environments.

Ideal use cases

• Three‑phase motor control circuits in manufacturing or processing facilities
• Commercial HVAC and large equipment distribution panels
• Electrical service entrances and distribution boards that require solid 3‑pole protection
• retrofit projects where a like‑for‑like Square D replacement is needed for compatibility and consistency

What sets it apart

Choosing the Square D HLA36100SP means opting for a trusted brand with a proven track record in industrial power protection. Its 100 A capacity paired with a 3‑pole design makes it a practical solution for reliably isolating and protecting substantial 3‑phase circuits. The 600 V rating expands its versatility across various installations, from compact commercial panels to larger industrial distributions, ensuring consistent performance under real‑world operating conditions.

Practical tips and considerations

• Confirm compatibility with your panel or distribution board’s accepted breaker types and mounting style before replacement or installation.
• Use as part of a layered protection strategy: pair circuit breakers with appropriate overcurrent protection on feeders and branch circuits to manage fault conditions effectively.
• Schedule regular inspections of connections and mounting hardware to maintain reliable operation over time in harsh or vibration‑prone environments.