Eaton KDC3300C - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

Powerful, compact, and built to last—the Eaton KDC3300C 3-Pole Molded Case Circuit Breaker is your dependable solution for branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a 300 A rating and 600 V capability, this unit is designed to handle demanding residential, commercial, and light industrial applications while saving valuable panel space.

• Space-efficient molded-case design: Slim profile that maximizes panel real estate without compromising protection.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection for both overloads and short-circuit events, reducing nuisance trips and improving reliability.
• 3-pole configuration: Ideal for 3-phase systems and distributed loads, ensuring coordinated protection across all phases.
• 600 V rating: Broad compatibility for a wide range of circuits and panelboard configurations.
• 300 A amperage rating: Suited for main feeders and high-demand circuits in modern panel setups.
• OEM-compatible: Specifically designed to be used with matching Eaton OEM load centers and panelboards for seamless integration.
• Versatile applications: Optimized for residential service panels, commercial distribution panels, and light industrial installations requiring robust protection in a compact package.

Why this model stands out

The KDC3300C isn’t just a breaker—it’s a thoughtful balance of space efficiency and reliable protection. The molded-case construction combines durability with straightforward installation, while the thermal-magnetic trip offers fast, predictable response to fault conditions. For panel builders and service technicians, this means fewer trips, easier zoning, and smoother coordination with downstream protection devices in Eaton-compatible systems.

Ideal use scenarios

• Upgrading or installing main feeders in residential panels that require 300 A protection and a 3-pole layout.
• Feeder and distribution protection in commercial load centers where space is at a premium.
• Light industrial panel enclosures that demand reliable short-circuit interruption and stable overload protection.
• New installations using Eaton-matched load centers and panelboards to ensure optimal fit and performance.

Technical snapshot

• Manufacturer: Eaton
• Part Number: KDC3300C
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 300 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Eaton KDC3300C for a trusted, high-capacity protection solution that aligns with Eaton’s panelboard ecosystems. Ideal for professionals stocking AmpState inventories, this 3-pole MCCB delivers precise protection, efficient panel utilization, and compatibility that simplifies installations and future upgrades.