Schneider Electric LA-3400-F Circuit Breaker, 400A, 3-Pole, 600V

The Schneider Electric LA-3400-F is a rugged, industrial-grade circuit breaker engineered for demanding electrical service, maintenance, and replacement tasks. As a staple of the LA series, this 400 A, 3-pole unit delivers reliable, synchronized protection for high-current three-phase systems at up to 600 V, helping you safeguard feeders, motors, and distribution panels against electrical faults.

Key advantages that matter in the real world

• High-current protection with a 400 A rating to safely shield large feeders and motor circuits from overloads and short circuits.
• Three-pole reliability ensures simultaneous disconnection of all phases, reducing the risk of phase imbalance and equipment damage.
• 600 V rated suitable for standard industrial power distribution environments and a wide range of equipment profiles.
• LA-series compatibility designed to drop into LA-series panels and configurations, enabling a straightforward replacement or upgrade.
• Precise part identification by part number LA-3400-F, ensuring you match the exact device to your application requirements.

Ideal applications

• Replacement circuit breaker for LA-series panels and switchgear in industrial facilities.
• Main or feeder protection for three-phase distribution circuits in manufacturing plants.
• Protects heavy-duty motors and equipment where high current and reliable disconnection are critical.
• Maintenance stocking for service teams that standardize on Schneider Electric LA-series components.

Why choose LA-3400-F over other options

This breaker is purpose-built for environments where uptime matters and compatible replacement parts are essential. By sticking with the LA-3400-F, you benefit from Schneider Electric’s proven engineering for dependable trip performance, coordinated protection across all phases, and seamless integration with existing LA-series infrastructure. The 3-pole configuration reduces the chance of phase-related faults, while the clear part-numbered fit minimizes guesswork during maintenance or panel upgrades.

How to verify compatibility (quick checks)

• Confirm the panel accepts LA-series breakers and that the space is configured for a 3-pole device.
• Match the amperage rating (400 A) and voltage rating (600 V) to your system specifications.
• Use part number LA-3400-F to verify exact fit and replacement eligibility for your application.
• If you’re unsure about fit or compatibility, reach out—we can help confirm whether this exact part matches your equipment requirements.

With the LA-3400-F in your spare parts kit, you gain a dependable, high-availability solution for industrial power protection. It’s built to perform when it matters most, keeping critical processes online and protecting both personnel and equipment.