Square D HGA36100SR 100A 3-Pole 600 V Circuit Breaker

Meet the Square D HGA36100SR—a reliable three-pole circuit breaker engineered for three-phase electrical distribution up to 600 V. With a 100 A current rating, this device provides essential overcurrent protection for feeders and equipment in commercial and light-industrial environments, helping safeguard wiring and downstream components from overloads and faults.

Key specifications at a glance

• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36100SR
• Brand: Square D

This 3-pole breaker is designed to protect three-phase circuits, making it an ideal choice for service entrances, main feeders, and motor-driven applications where reliable interruption of fault current is critical. By disconnecting power quickly and safely during overcurrent events, it helps prevent damage to conductors, transformers, and connected equipment, while supporting safer maintenance practices.

Who it’s ideal for

• Facilities with three-phase distribution needs—warehouses, manufacturing floors, and large commercial spaces
• Panelboards and distribution panels that require 3-pole, 600 V protection
• Installers and electricians seeking a dependable, readily available Square D component for compatible enclosures

Practical usage and installation tips

• Verify panel compatibility: ensure your enclosure accepts HGA-series breakers and supports 3-pole devices rated for 600 V
• Plan for three-phase protection at the point of use—ideal for feeders and motor circuits
• Keep spares on hand for fast replacements in critical distribution paths
• Follow local electrical codes and consult a licensed electrician for installation and testing

With the Square D HGA36100SR, you gain a dependable, purpose-built solution for protecting 3-phase systems at up to 600 V. The combination of a 100 A rating and three-pole design makes it a precise, effective choice for maintaining safe, uninterrupted power in demanding environments.