Eaton JD3100X - 100 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton JD3100X is a 3-pole, 100A, 600V bolt-on molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a secure bolt-on mounting, it provides a rigid, vibration-resistant bus connection that stays put through demanding electrical environments. Its thermal-magnetic trip unit delivers stable, repeatable protection, responding quickly to both overloads and short circuits to safeguard your wiring and connected equipment.

Why the JD3100X stands out

• Secure bolt-on mounting: A robust mounting method that minimizes movement and maintains a reliable, continuous connection in vibration-prone panels and load centers.
• Thermal-magnetic trip unit: Combines fast short-circuit response with steady overload protection for consistent breaker performance over time.
• OEM compatibility: Designed to work with matching OEM loadcenters and panelboards, ensuring correct fit, termination, and protection characteristics.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where reliable 3-phase protection is required.

Technical snapshot

• Manufacturer: Eaton
• Part Number: JD3100X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

In residential and light commercial installations, the JD3100X serves as the main or feeder protection for 3‑phase equipment and circuits that demand solid, consistent interruption performance. It’s an ideal choice for panelboards and loadcenters where high vibration or equipment start-ups can impact lesser breakers. Whether protecting a three-phase motor, HVAC equipment, or a bank of critical branch circuits, the JD3100X helps keep wiring within safe thermal limits while providing clear, predictable tripping behavior when faults occur.

Installation and reliability tips

Opt for the bolt-on JD3100X in panels designed for bolt-on protection devices to ensure a seamless fit and lasting bus connection. Rely on its thermal-magnetic protection profile to minimize nuisance trips during temporary overloads, while still delivering rapid response to short-circuit events. Regular inspection of panel connections and adherence to OEM mounting recommendations will maximize longevity and reliability in demanding environments.

Who should consider this breaker

Electricians and facility managers seeking a rugged, OEM-compatible 3-pole solution for panelboards and loadcenters that demand dependable overcurrent and short-circuit protection will find the Eaton JD3100X a compelling option. Its combination of secure mounting, stable protection, and broad applicability makes it suitable for residential projects transitioning to 3‑phase systems, commercial lighting and power distribution, and light industrial applications where reliability matters most.