Eaton LGS3400FAG - 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton LGS3400FAG — a 600V, 3-pole molded case circuit breaker engineered to safeguard your electrical system with precision and reliability. Designed for dependable branch circuit overcurrent and short-circuit protection, it's built to fit seamlessly in panelboards and loadcenters from OEMs that match Eaton's standards.

Why this breaker stands out

• Space-saving molded case design: The compact form factor minimizes intrusion into panel space, helping you maximize layout efficiency in installations where every inch matters.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection across a wide range of operating conditions, ensuring consistent response to overloads and short circuits.
• 3-pole configuration for 600V systems: Ideal for three-phase circuits common in commercial and light industrial settings, as well as multi-wire branch circuits in modern installations.
• OEM-loadcenter compatibility: Specifically designed to be compatible with matching Eaton OEM loadcenters and panelboards, simplifying upgrades and replacements and preserving system coordination.
• Versatile applications: Suitable for residential, commercial, and light industrial applications where reliable circuit protection and panel-space optimization matter.

Technical snapshot

• Manufacturer: Eaton
• Part Number: LGS3400FAG
• Type: Thermal-magnetic molded case circuit breaker
• Voltage Rating: 600V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and scenarios

In a busy panelboard upgrade, the LGS3400FAG can consolidate protection on 3-phase circuits while saving space for additional breakers or future expansions. In commercial lighting and small motor loads, its thermal-magnetic trip characteristic helps coordinate with other protection devices to minimize nuisance tripping while preserving safety. For service entrances and retrofit projects, choosing a breaker with OEM compatibility reduces compatibility risks and ensures consistent trip curves with existing equipment.

Tips for installation and selection

When choosing this breaker, confirm your panelboard or loadcenter is compatible with Eaton’s LGS3400FAG family to maintain coordinated protection. For any retrofit, pairing with an Eaton-rated panel reduces the risk of mismatched trip curves and expansion constraints. Always follow local electrical codes and manufacturer torque specifications during installation.