Westinghouse LC400A - 400A, 3-Pole, Circuit Breaker

The Westinghouse LC400A is a rugged 400A, 3-pole circuit breaker designed to safeguard 3‑phase electrical systems across industrial, commercial, and OEM environments. It’s built for dependable overcurrent protection in distribution panels, switchboards, and motor control centers, where safety and uptime matter.

Core specs that matter

• Current rating: 400A
• Poles: 3-Pole
• Breaker type: Circuit Breaker

Why the LC400A stands out

• Three‑phase protection: The 3‑pole design ensures all phases are simultaneously monitored and interrupted as needed, reducing the risk of unbalanced loads and equipment damage.
• Panel compatibility: Designed to slot into compatible Westinghouse panelboards, switchboards, and control panels, making replacements straightforward and downtime minimal.
• Industrial-grade durability: Engineered for rigorous environments found in distribution and motor control centers, delivering reliable performance under load and fault conditions.
• OEM-friendly: Ready for integration in custom electrical installations, retrofit projects, and engineered systems where robust overcurrent protection is essential.

Practical applications and use cases

Ideal for facilities and projects where 3‑phase protection is required and 400A feeders are used. Use cases include:

• Protecting feeders feeding large motors and equipment in manufacturing lines.
• Providing main or branch protection in distribution panels and switchboards.
• Integrating into OEM electrical assemblies for machinery and process lines where reliable trip behavior is critical.

Guidance for selection and installation

• Ensure the receiver panel or MCC accepts a 3‑pole LC400A style circuit breaker and matches the current rating to the load profile.
• Plan for proper wiring, bus connection, and secure mounting to maintain fault-clearing performance.
• Use as part of a broader overcurrent protection scheme that aligns with applicable electrical codes and standards.

With the Westinghouse LC400A, you’re choosing a trusted solution for protecting heavy-duty 3‑phase circuits. It’s a precise, reliable choice when uptime and safe operation in panelboards, switchboards, and motor control centers are non-negotiable.