LA3400SNW | Circuit Breaker | 400A | 3-Pole | 600V

Meet the LA3400SNW Industrial Circuit Breaker — a purpose-built solution engineered for reliability in demanding electrical environments. With a 400A rating, 3-pole design, and a 600V maximum rating, this breaker is ready for maintenance, retrofit, and replacement projects where exact specifications matter most.

Precise protection for demanding 3‑phase systems

Designed to interrupt fault currents across all three phases, the LA3400SNW ensures synchronized disconnection in 3‑phase networks. The 400A rating delivers robust protection for high-load feeders and motor circuits, helping prevent damage to equipment and reducing the risk of fire or arc flash in industrial settings. The 600V voltage rating makes it suitable for a wide range of commercial and industrial distribution panels, providing dependable performance where it’s needed most.

Why this model stands out

• Targeted compatibility: the LA3400SNW is specifically identified by its part number, giving you a reliable reference point for matching the exact breaker to your panel or schematic.
• Streamlined retrofit: designed to fit typical 3‑phase, 600V applications, enabling faster upgrades or replacements without extensive panel modifications.
• Industrial-grade reliability: built to endure the wear and tear of continuous operation in demanding environments, from manufacturing floors to large facilities.

Ideal use cases

• Upgrading aging panels in manufacturing lines where stable 3‑phase protection is critical
• Maintenance and replacement of breakers in 600V distribution systems
• Retrofit projects that require specific electrical ratings and a compatible part number for streamlined ordering
• Motor feeder protection in industrial equipment, pumps, and HVAC systems

Installation and compatibility guidance

Important: always confirm fit and ratings before ordering. The part number LA3400SNW is the best reference for compatibility with your panel and system. When evaluating compatibility, cross-check your panel’s catalog or service documentation to ensure the LA3400SNW will integrate with the existing bus, mounting, and electrical clearances. If your system runs at 600V on a three‑phase network and your project calls for a 400A, 3‑pole device, this breaker is a strong match for your requirements.

With the LA3400SNW, you gain a dependable, specification-aligned solution that makes maintenance shorter, replacements simpler, and upgrades more predictable — keeping your industrial power distribution safe, compliant, and productive.