Eaton KD3300 - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

Engineered for reliability in demanding electrical environments, the Eaton KD3300 is a 300A, 600V, 3-pole molded case circuit breaker designed to protect branch circuits in panelboards and load centers. Its compact form and robust thermal-magnetic trip unit deliver dependable protection while maximizing space efficiency.

• Compact molded case design: Optimizes panel space and simplifies layout in both commercial and industrial panels.
• Thermal-magnetic trip unit: Delivers stable overload protection with fast magnetic response for short-circuit events, ensuring repeatable protection across a wide range of load conditions.
• Three-pole protection: Supports 3-phase circuits essential for commercial equipment, motors, and HVAC loads.
• OEM loadcenter compatibility: Precisely engineered to fit Eaton load centers and panelboards, providing reliable fit and coordinated protection.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where dependable branch-circuit protection is critical.

Key specifications

• Manufacturer: Eaton
• Part Number: KD3300
• 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

Who benefits most: electrical contractors, facility managers, and maintenance teams replacing aging panels or expanding 3-phase circuits in commercial or light industrial settings. The KD3300’s combination of compact footprint, reliable protection, and OEM compatibility helps streamline installations and reduce field adjustments.

Why choose the KD3300 over other options? Its integrated thermal-magnetic trip provides dependable performance under varying load conditions, while the molded case design saves valuable panel space without sacrificing protection quality. The 3-pole configuration is ideal for three-phase equipment, and its OEM compatibility minimizes installation risk by ensuring a precise, factory-tested fit with Eaton panelboards.

Ready for reliable protection in your panel system, the KD3300 is a practical, long-lasting solution for three-phase branch circuits. If you’re upgrading an existing panel or planning a new installation, this 300A, 600V molded case breaker delivers clear advantages in performance, space efficiency, and compatibility.