Eaton LGH340032W - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton LGH340032W, a 400A, 600V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for reliability, it stabilizes electrical protection in a wide range of residential, commercial, and light industrial environments.

• Secure bolt-on mounting provides a rigid, vibration‑resistant bus connection, reducing movement and maintaining consistent electrical contact over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, reacting predictably to both sustained overloads and short-circuit events.
• OEM-compatible design is engineered to pair with matching Eaton loadcenter and panelboard systems for straightforward installation and reliable integration.
• High-capacity protection with a 400A amperage rating and 600V rating makes it suitable for demanding service feeds and branch circuits in a variety of applications.
• Versatile applications ideal for residential panels, commercial electrical rooms, and light industrial electrical distribution networks seeking durable, dependable protection.

Why this matters for your electrical system

The LGH340032W isn’t just a break in the circuit—it's a proactive safeguard. The bolt-on mounting ensures a solid, low-vibration connection, which is crucial in panels subjected to door operations, motor loads, or facility vibration. The thermal-magnetic trip unit delivers decisive action against faults while minimizing nuisance tripping, helping keep downtime and maintenance costs down in busy facilities.

Use cases and installation considerations

• Upgrading or replacing protection in Eaton panelboards and loadcenters to maintain consistent performance across critical circuits.
• Installing in residential service panels that require robust 400A branch-circuit protection for large feeders or multi‑room systems.
• deploying in commercial electrical rooms and light industrial panels where reliable protection and easy integration with existing OEM components are priorities.

Key specifications at a glance

• Manufacturer: Eaton
• Part Number: LGH340032W
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 400A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Designed to integrate seamlessly with existing Eaton systems, the LGH340032W provides a robust, long-lasting protection solution for a range of installations. Whether you’re wiring a new panel, upgrading an older setup, or stocking the right spare for service calls, this 3‑pole, bolt-on breaker delivers clear protection and dependable performance when it matters most.