Square D HGA36100SL 100A 3-Pole 600 V Circuit Breaker

The Square D HGA36100SL is a 100A, 3-pole, 600V circuit breaker designed to protect your electrical distribution smoothly and reliably. Built for demanding commercial and light-industrial settings, this component helps safeguard equipment and ensure safety in your panelboard installations.

Key specifications

• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36100SL

Why choose the Square D HGA36100SL

• 3-pole design delivers coordinated disconnection across all phases, reducing the risk of phase imbalances in 3-phase systems.
• Robust construction and proven performance in panelboards and distribution setups.
• Ideal for protecting feeders and equipment circuits in service entrances, commercial panels, or motor control centers where 3-phase protection is required.
• Simple integration with existing Square D systems and compatible enclosures, helping streamline panel builds and upgrades.
• Clear labeling and durable terminals support reliable field installation and maintenance.

Practical use cases

Use the HGA36100SL to protect 3-phase feeders supplying motors, conveyors, HVAC units, or other heavy loads in workshops, factories, or commercial spaces. It's also suitable as a main-disconnect or distribution-line protection in properly rated panels.

Tips for installation and care

• Verify compatibility with your panelboard and ensure the load and supply voltages align with the 600 V rating.
• Follow local electrical codes and the panel manufacturer’s installation instructions.
• Check for proper torque on terminals and secure mounting to maintain reliable trip performance.
• Store and handle components in a clean environment to prevent contamination on connections.