Eaton JD3125 - 2 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton JD3125 is a 3-pole, bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a 2V rating and a thermal-magnetic trip unit, this unit provides stable, repeatable protection across residential, commercial, and light industrial environments.

Why this breaker stands out

• Secure bolt-on mounting ensures a rigid, vibration-resistant bus connection, reducing movement and potential nuisance trips in busy panels.
• Thermal-magnetic trip combines overload protection with fast short-circuit response, delivering consistent protection even during surge events.
• OEM-compatible design is engineered to fit matching Eaton load centers and panelboards, simplifying retrofits and new installs.
• Three-pole configuration suited for three-phase systems, ideal for commercial and light industrial applications while still usable in compatible residential panel setups.

Ideal use cases

Perfect for electricians and electrical contractors working on panelboard upgrades, service enhancements, or new builds that rely on Eaton’s protective devices. Use the JD3125 to safeguard main distribution paths and individual branch circuits within panelboards and loadcenters, ensuring reliable protection against both overload and short circuits.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: JD3125
• Type: Thermal-magnetic molded case circuit breaker
• Voltage Rating: 2V
• Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical installation guidance

Ensure your panelboard accepts 3-pole bolt-on breakers and that the bus connections align with the JD3125 design. Install with appropriate torque on mounting hardware and conductors, and verify tight, clean contacts for optimal performance. Regularly inspect for signs of wear or corrosion and replace any compromised components to maintain reliable protection.

From AmpState, a trusted source for Eaton power protection components, the JD3125 offers rugged, reliable circuit protection for your most demanding panel installations.