Square D HGA36100UH 100A 3-Pole 600 V Circuit Breaker

The Square D HGA36100UH 100A 3-Pole 600 V Circuit Breaker is engineered for robust 3-phase protection in demanding commercial and industrial electrical systems. With a 100 amp rating, three poles, and a 600-volt maximum, it safeguards feeders and equipment from overloads, short circuits, and motor faults while helping maintain power reliability in active distribution panels.

• Three-pole, three-phase protection: Intercepts all three hot conductors simultaneously, preserving balance and safety in 3-phase networks.
• 100 A current rating: Precisely matches common feeder and motor circuits in mid-range industrial installations, preventing nuisance trips on typical loads.
• 600 V maximum system voltage: Suitable for many commercial and industrial environments that operate at elevated distribution voltages.
• Part Number HGA36100UH: Clear, exact designation for procurement, maintenance records, and cross-reference in existing panels.
• Square D reliability: Built to withstand demanding environments, delivering consistent performance over time in panelboards and switchgear.
• Form-factor alignment: Designed to integrate with panels and enclosures that specify the HGA family form factor, ensuring a straightforward replacement or upgrade path.

Who benefits from the Square D HGA36100UH?

Facilities with 3-phase, 600 V distribution—such as data centers, manufacturing floors, HVAC systems, and large motor-driven equipment—will find this breaker a precise fit for protecting essential feeders and circuits while maintaining service continuity.

Practical use cases and benefits

• Protect 3-phase feeders feeding large motors or transformers in commercial buildings.
• Use as a protective main or feeder breaker in compatible Square D panels that require a 100 A, 3-pole, 600 V device.
• Maintain system reliability by selecting a breaker that aligns with your load profile and voltage requirements, reducing unplanned downtime.

Installation and maintenance tips: Ensure panel compatibility with HGA-series breakers, follow all electrical safety practices, and replace only with the exact part when servicing 3-phase circuits. Keep a correctly rated spare on hand for fast field replacement to minimize downtime.

Technical snapshot

• Part Number: HGA36100UH
• Current Rating: 100 A
• Poles: 3
• Voltage Rating: 600 V
• Brand: Square D