Square D | LCP36400 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

Square D LCP36400 Circuit Breaker is built for demanding industrial and commercial applications where reliable protection is non-negotiable. This 400A, 3-pole, 600V bolt-on breaker is designed for maintenance, retrofit, and replacement projects that require exact specifications and durable performance in high-current environments.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On

Why this model stands out

Choosing the LCP36400 means selecting a bolt-on design that delivers a secure, vibration-resistant connection—essential for panels that handle heavy loads and frequent switching. The three-pole configuration provides true three-phase protection, safeguarding motors, compressors, and other three-phase equipment from overloads and short circuits. With a 600V rating, this breaker covers a wide range of industrial feeders and distribution circuits, offering dependable performance across diverse installations.

Use cases and ideal applications

• Main disconnects in commercial and industrial service panels requiring a high-current, three-phase protection device
• Retrofits or replacements in legacy Square D installations where an LCP-series bolt-on breaker is specified
• Protecting large motors, pumps, and HVAC systems in factory and data-center environments

Practical considerations for installation

Before ordering, confirm fit and ratings for your exact panel configuration. The part number is the most reliable reference for compatibility, so match your equipment to LCP36400 precisely. During installation, follow standard safety protocols for high-current breakers, ensure proper torque on mounting hardware, and verify bus stab alignment to maintain secure electrical contact.

What makes this purchase valuable

• Reliable, high-current protection for three-phase systems
• Durable bolt-on mounting for a secure, maintenance-friendly install
• Versatile for retrofit, replacement, and new installations where 400A, 3-pole, 600V specs are required
• Clear compatibility reference via the part number for efficient sourcing

Designed to meet the demands of modern electrical systems while delivering the familiarity and compatibility of Square D components, the LCP36400 is a practical, long-term solution for critical power protection needs.