Eaton KDC3300 - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton KDC3300 from AmpState — a robust 3-pole molded case circuit breaker engineered to safeguard your electrical systems with precision. With a 300 A rating and a 600 V maximum, this unit delivers dependable branch circuit overcurrent and short-circuit protection for panelboards and loadcenters across residential, commercial, and light industrial environments. Its compact form factor helps you maximize panel space without compromising protection, making it a practical upgrade or replacement in existing Eaton OEM installations.

Why this breaker stands out

• Space-efficient molded case design: Optimizes panel layout, freeing up room for wiring and future expansion while maintaining reliable protection.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection against overcurrent and short circuits, adapting to varying load conditions for consistent performance.
• 3-pole configuration: Suited for three-phase systems common in commercial and light industrial applications, ensuring coordinated protection across all phases.
• OEM compatibility: Specifically designed to be compatible with matching Eaton OEM loadcenters and panelboards, promoting straightforward installation and reliable operation.
• High-capacity protection: 300 A rating makes it ideal for medium-to-large branch circuits, balancing safety with system efficiency in evenly distributed loads.

Technical snapshot

• Manufacturer: Eaton
• Part Number: KDC3300
• 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

Ideal use cases

• Upgrading an existing residential or commercial panelboard that serves high-load equipment or machinery where 600 V systems are in play.
• Replacement for aging or tripped breakers in light industrial distribution centers that require reliable, repeatable protection.
• New installations that demand a compact, three-phase protection solution without sacrificing protection performance.
• Applications where OEM compatibility ensures seamless integration with the existing Eaton panel ecosystem.

Practical tips for optimal performance

• Before installation, confirm that your panelboard or loadcenter is designed for 3-pole molded case breakers and compatible with the KDC-series hardware.
• For best results, pair the KDC3300 with matching Eaton OEM components to ensure coordinated protection and streamlined maintenance.
• Regularly inspect connections for tightness and signs of wear; a secure bus connection helps maintain consistent trip performance and reduces nuisance tripping.
• Consider future load growth in your panel design; the compact footprint of the KDC3300 can free space for additional circuits or future expansions.

The Eaton KDC3300 — 300 A, 600 V, 3-Pole Circuit Breaker — delivers reliable, space-conscious protection for a wide range of electrical installations. Trust its thermal-magnetic protection and OEM compatibility to keep your panelboards and loadcenters safe and efficient.