Square D LC26400BC 400A 2-Pole 600 V Circuit Breaker

The Square D LC26400BC 400A 2-Pole 600V Circuit Breaker is built to protect large electrical feeders and critical equipment in demanding commercial and industrial environments. With a robust 400 amp capacity and a two-pole design, it delivers reliable overload and fault protection for 600-volt distribution systems, helping to keep your power distribution safe and downtime to a minimum.

• Current rating: 400 A
• Poles: 2
• Voltage rating: 600 V
• Part number: LC26400BC
• Brand/series: Square D LC

Key benefits include sturdy construction designed for continuous operation in harsh settings, quick interruption of fault currents, and compatibility with Square D panels and enclosures that support LC-type breakers. This makes the LC26400BC an ideal solution for main service protection, feeder protection for large motors and equipment, and as a reliable backup in centralized power distribution plans.

Ideal use cases

• Main service disconnects in large commercial or industrial panels operating at up to 600 V
• Feeder protection for heavy machinery, conveyors, pumps, and other high-current equipment
• Replacement or upgrade in installations that require LC-series, 2-pole, 600 V circuit breakers

Installation and compatibility considerations

Designed to work with Square D panels and enclosures that accept LC-type breakers. When replacing an existing device, verify that the panel specification supports a 400 A, 2-pole, 600 V breaker and confirm bus compatibility and mounting fit for the LC26400BC part.

With the LC26400BC, you’re choosing a trusted Square D protection device that prioritizes safety, reliability, and clarity in high-demand electrical systems. It helps you safeguard wiring, reduce the risk of equipment damage, and maintain steady operation across your 600 V distribution network.