Eaton EGB3100FFB - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton EGB3100FFB, a purpose-built 100A, 480V, 3-pole bolt-on molded case circuit breaker designed to protect your panelboards and load centers from overcurrent and short-circuit events. Built for reliability in demanding electrical environments, this unit delivers steady, predictable protection for critical 3-phase circuits.

Key advantages that set it apart

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays tight even in busy electrical rooms.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to overloads with the thermal element and short-circuits with the magnetic element.
• OEM-compatible design is specifically engineered to work with matching Eaton OEM load centers and panelboards for straightforward installation and reliable operation.
• Versatile 3-pole configuration supports 480V three-phase distribution, ideal for a range of residential, commercial, and light industrial applications.

Technical specifics at a glance

• Manufacturer: Eaton
• Part Number: EGB3100FFB
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 100A
• Voltage Rating: 480V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

• Protection for 480V three-phase feeders in commercial buildings and light industrial facilities
• Retrofits or upgrades where a secure bolt-on MCCB is required to match existing panelboards or load centers
• Protection of subsequent equipment in panelboards that experience vibration or movement, where a rigid connection is beneficial
• Situations demanding dependable thermal-magnetic tripping to guard against both overloads and short circuits

Installation and compatibility considerations

Designed to work with matching OEM Eaton load centers and panelboards, the EGB3100FFB is a straightforward bolt-on solution for branch circuit protection. When selecting this breaker, ensure it aligns with your panelboard’s model and wiring configuration, and follow all manufacturer guidelines for mounting to achieve the intended vibration resistance and electrical clearance.

For buyers seeking a robust, industry-proven bolt-on MCCB for 480V three-phase distribution, the Eaton EGB3100FFB combines precise thermal-magnetic protection with a secure mounting approach, delivering dependable performance across residential, commercial, and light industrial environments.