Eaton KDC3350X - 350 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton KDC3350X - a 350 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered to protect your panelboards and load centers from overcurrent and short circuits. Built for dependable operation in residential, commercial, and light industrial environments, this breaker combines rugged mounting with precise protection characteristics.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for reliable long-term performance.
• Thermal-magnetic trip unit delivers stable, repeatable protection, responding quickly to short circuits or sustained overcurrents without nuisance trips.
• Three-pole design supports accurate three-phase protection in 600 V systems.
• OEM-compatible is designed to work with matching Eaton OEM load centers and panelboards for straightforward installation and dependable interoperability.

Key specifications at a glance

• Manufacturer: Eaton
• Part number: KDC3350X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 350 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and ideal applications

The KDC3350X is an excellent fit when you need robust protection for high-current, three-phase panel installations. It’s ideal for:

• Residential environments with large, multi-leg subpanels in commercial-grade homes or multifamily complexes.
• Commercial and light industrial panelboards and load centers requiring reliable, code-compliant protection for feeder circuits.
• Upgrades and replacements in existing Eaton systems to restore precise trip performance and maintain OEM compatibility.

Practical considerations and performance benefits

By choosing a bolt-on molded case breaker with a thermal-magnetic trip, you get:

• Durable, vibration-resistant connections that stand up to equipment start-ups and frequent panel access.
• Predictable protection curves that help minimize nuisance trips while delivering fast response to short circuits.
• Clear interoperability with Eaton's family of load centers and panelboards, reducing installation guesswork and ensuring reliable protection across the panel.

Whether you’re wiring a new installation or upgrading an existing panel, the Eaton KDC3350X offers the combinations of current capacity, voltage rating, and robust mounting you need for dependable branch circuit protection. Add it to your cart to ensure your electrical system stays protected while keeping your panel layout clean and secure.