LGU3400FAG | Circuit Breaker | 400A | 3-Pole | 600V

The LGU3400FAG circuit breaker is a rugged, industrial-grade protection solution engineered for demanding electrical environments. With a 400A rating, a 3-pole configuration, and a 600V rating, this unit is built to deliver reliable, simultaneous disconnection for three‑phase systems when protection is required.

Designed for maintenance, retrofit, and replacement projects, this breaker lets you refresh aging panels or upgrade equipment without overhauling your whole electrical architecture. Its like‑for‑like fit makes it a practical choice for applications where exact specifications and compatibility are critical.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage rating: 600V

Why choose the LGU3400FAG for your system

• Precise compatibility is anchored by the part number LGU3400FAG—use this reference to verify fit and ratings before purchasing.
• Three-pole design provides coordinated protection for all three phases, simplifying wiring and ensuring a unified shutdown in fault conditions.
• Ideal for retrofits and replacements in industrial panels where keeping the same form factor and electrical characteristics reduces downtime and rework.
• Durable, field-ready construction built to withstand the rigors of manufacturing environments, helping to minimize nuisance trips and maintenance calls.

Use cases and scenarios

• Upgrading aging factory panels that service three-phase motors and heavyduty loads
• Replacing a failed or discontinued breaker in a production line with a like-for-like spec
• Maintaining system reliability during panel modernization or capacity upgrades

Installation and safety considerations

• Always confirm fit and ratings before ordering—the part number LGU3400FAG is your best compatibility reference.
• Ensure your panel, circuits, and connected equipment are rated for 600V and 400A to prevent mismatches.
• Engage a qualified electrician and adhere to current electrical codes and safety practices during installation and maintenance.

In environments where dependable, straightforward protection matters most, the LGU3400FAG stands out as a purpose-built choice for 3‑phase, high‑current electrical systems. Its precise specifications, clear compatibility guidance, and retrofit-friendly design help you safeguard equipment, reduce downtime, and keep operations running smoothly.