Eaton LGC3630NN - 630 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton LGC3630NN — a high-capacity, three-pole bolt-on molded case circuit breaker designed to protect demanding branch circuits in panelboards and load centers. With a 630A rating at 600V, this unit is built for reliability in commercial and light industrial environments while still serving robust residential systems that require substantial current protection.

• Secure bolt-on mounting: delivers a rigid, vibration-resistant bus connection that stays tight under equipment vibration and frequent panel access.
• Thermal-magnetic trip unit: provides stable, repeatable protection across overload and short-circuit conditions, helping to minimize nuisance trips and deliver predictable protection curves.
• 3-pole design: ideal for three-phase systems, ensuring balanced protection across all phases for reliable operation of motors and equipment.
• OEM loadcenter compatibility: engineered to pair with matching Eaton OEM loadcenters and panelboards, simplifying selection and ensuring a seamless integration.
• Residential, commercial, and light industrial ready: designed to handle large branch circuits in a variety of settings, from home upgrades to small-to-mid size commercial installations.
• Durable molded case construction designed to stand up to the rigors of everyday electrical distribution and demanding environments.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: LGC3630NN
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 630 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Main or feeder protection for commercial panelboards and load centers requiring high-current capability
• Protection for large branch circuits in light industrial equipment, HVAC systems, and pump networks
• Replacement or upgrade in Eaton-compatible systems where a robust 3-pole, 630A rating is needed
• Three-phase installations that demand dependable, repeatable protection against faults and overloads

Installation and compatibility tips

To maximize reliability, pair the LGC3630NN with matching Eaton OEM loadcenters and panelboards. Its bolt-on mounting provides a secure connection that resists vibration and keeps electrical paths solid over time. Always verify that your enclosure is designed for a 3-pole, 600V, 630A molded case circuit breaker and follow the panel manufacturer’s installation guidelines for best results.

Why this matters for your electrical distribution

The LGC3630NN isn’t just a breaker—it's a purpose-built protection solution designed to integrate smoothly into Eaton’s ecosystem. The combination of bolt-on rigidity, a thermal-magnetic trip mechanism, and OEM compatibility translates to lower maintenance, clearer diagnostics, and consistent protection across critical circuits. If your setup requires reliable high-current protection with straightforward installation and proven performance, this 3-pole bolt-on model is a well-considered choice.

Whether you’re upgrading a panelboard in a commercial space or provisioning a heavy-duty branch circuit in a light industrial facility, the Eaton LGC3630NN delivers precise protection, durable construction, and compatibility that simplifies your distribution strategy.