Eaton KD3100X - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton KD3100X is a rugged, three‑pole bolt‑on molded case circuit breaker designed to deliver dependable branch circuit protection where it’s needed most. Rated at 100 A and 600 V, it’s built to handle the demands of residential, commercial, and light industrial applications while staying reliable in panelboards and load centers.

• Rigid, vibration‑resistant mounting: Secure bolt‑on installation ensures a solid bus connection that stays tight and dependable even in environments with vibration or temperature cycling.
• Thermal‑magnetic trip for stable protection: The integrated trip unit provides precise overcurrent and short‑circuit protection with repeatable performance, helping to minimize nuisance trips while safeguarding circuits.
• 3‑pole design for three‑phase systems: Perfect for three‑phase loads common in commercial and light industrial setups, while simplifying wiring and protection coordination.
• OEM‑compatible and easy to integrate: Designed to work with matching OEM load centers and panelboards for a smooth, reliable retrofit or new installation.
• Versatile application range: Suited for residential projects, commercial installations, and light industrial environments where robust, space‑efficient protection is required.

Technical specifications

• Manufacturer: Eaton
• Part number: KD3100X
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Use cases and scenarios

The KD3100X is ideal when you need reliable protection for 3‑phase equipment and circuits up to 100 A. It’s well suited for panelboard upgrades in office buildings, small factories, data centers, or light commercial spaces where vibration resistance and durable mounting matter. Installers appreciate the bolt‑on design for secure connections in environments with equipment that generates movement or vibration, and owners benefit from consistent protection that reduces downtime and repair costs.

Practical tips for installation and care

• Pair the KD3100X with compatible OEM load centers to ensure optimal fit and protection coordination.
• When mounting, follow panelboard torque requirements to maintain the integrity of the bus connection and trip performance.
• Periodically inspect mounting hardware and electrical connections as part of routine panel maintenance to preserve long‑term reliability.