Westinghouse | LC3400F | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

The Westinghouse LC3400F Circuit Breaker delivers reliable three-phase protection for demanding electrical systems. With a sturdy 400 A rating, 3 poles, and a 600 V maximum, this bolt-on unit is purpose-built for maintenance, retrofit, and replacement projects where precise specs matter and downtime matters most.

Designed for straightforward installation, the LC3400F leverages a bolt-on mounting style that fits compatible panels and configurations, helping you restore or upgrade protection quickly without compromising circuit integrity. This is a practical choice when you need a dependable, high-capacity breaker that can handle the demands of modern industrial or commercial feeders.

Key specifications at a glance

• Amperage: 400 A
• Poles: 3-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Part number: LC3400F (best reference for compatibility)

Ideal use cases

- Retrofit or upgrade projects in commercial and light industrial panels that require a 3-pole, 400 A protection device.

- Maintenance replacements where a precise part number match ensures seamless compatibility with existing panel infrastructure.

- New or reorganized electrical layouts that demand reliable overcurrent protection for 3-phase feeders at 600 V.

Why this LC3400F stands out

Rather than a generic solution, the LC3400F is purpose-built for exact fit and dependable protection. The bolt-on design streamlines installation in compatible enclosures, minimizing downtime during critical service windows. Its 3-pole configuration ensures balanced protection across all three phases, helping to safeguard motors, transformers, and other heavy-load equipment from overcurrents and faults.

Practical guidance for buyers

Before ordering, confirm that the LC3400F matches your panel’s ratings and mounting style. The part number is the most reliable reference for compatibility, ensuring you receive a drop-in replacement or a precise retrofit component. If you’re unsure, consult your panel’s documentation or a qualified electrician to verify fit and safe, compliant operation.