Square D | LEL36300LS | Circuit Breaker | 300A | 3-Pole | 600V

Engineered by Square D, the LEL36300LS circuit breaker delivers dependable protection for three-phase electrical systems. With a 300-amp rating and a 600-volt capacity, this 3-pole breaker is built to safely interrupt heavy loads in commercial and industrial environments, helping to prevent equipment damage and unplanned downtime.

Designed for maintenance, retrofit, and replacement projects, it matches specific specifications exactly to ensure seamless integration with compatible Square D panels and feeders. The part number LEL36300LS is your best reference for compatibility—before ordering, please confirm that the fit and ratings align with your equipment’s listing.

Key specifications

• Amperage: 300 A
• Poles: 3-Pole
• Voltage rating: 600 V

Why this matters for your system

Three-pole protection ensures balanced shutdown across all phases, reducing the risk of motor or equipment damage during faults. The 600V rating makes it suitable for a wide range of industrial distribution scenarios, from main feeders to sub-feed breakers, when paired with a compatible Square D panel.

Ideal use cases

• Replacing a failed 300A/3-pole breaker in Square D panels to restore reliable power control
• Retrofits and panel upgrades in commercial facilities that require exact-spec compatibility
• Maintenance shutdowns and service work on three-phase motor circuits and heavy equipment

Compatibility reminder: This part is intended for use in equipment listed to accept LEL36300LS. Always verify fit and ratings before ordering and adhere to all electrical codes and safety practices during installation.