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

The Schneider Electric LA-3400 circuit breaker is a rugged, industrial-grade protection solution designed for demanding electrical environments. With a 400 A rating and a 3-pole configuration, it provides balanced, reliable overcurrent protection for three-phase power systems, making it ideal for industrial service, maintenance, and replacement projects.

Key reasons to choose the LA-3400 include:

• Three-pole design delivers synchronized protection across all three phases, helping prevent uneven loads and equipment damage.
• 400 A capacity supports high-demand feeders and motor circuits commonly found in industrial settings.
• Industrial-grade durability built to withstand the rigors of service and maintenance scenarios where downtime must be minimized.
• Part-number-based compatibility use the model LA-3400 to confirm fit for your panel and application requirements.

Product details you can rely on:

• Manufacturer: Schneider Electric
• Product Type: Circuit Breaker
• Amperage: 400 A
• Poles: 3 (3-Pole)
• Part Number: LA-3400

Use cases and scenarios:

• Protecting three-phase motor feeders and MCCs in manufacturing plants during ongoing operations or during maintenance outages.
• Replacement of aging or failed breakers in industrial switchgear where a 400 A, 3-pole solution is required.
• Upgrade projects where a consistent Schneider Electric protection framework is preferred for system compatibility and serviceability.

How to verify compatibility (quick guidance):

• Match the part number LA-3400 to your panel or switchgear’s specifications.
• Ensure the application requires three-phase protection with a 400 A rating and the physical and busbar configuration align with your equipment.
• Consider the broader Schneider Electric ecosystem to simplify maintenance and future part sourcing.

If you’re unsure about fit or compatibility, our team is ready to help. Need help matching a part number or confirming compatibility? Send us a message and we’ll assist in identifying the right solution for your exact application.