Eaton KDC3300Y - 300 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Eaton KDC3300Y — a 300A, 600V, 3-pole bolt-on molded case circuit breaker designed to shield your electrical system from overcurrent and short circuits. Built for dependable protection in panelboards and load centers, this unit is a reliable cornerstone for residential, commercial, and light industrial applications.

• Secure bolt-on mounting: Delivers a rigid, vibration-resistant bus connection to minimize movement and maintain consistent electrical contact in demanding environments.
• Thermal-magnetic trip unit: Combines thermal and magnetic sensing for stable, repeatable protection—responding to both prolonged overloads and instantaneous faults with predictable trips.
• OEM-compatible: Engineered to work with matching OEM load centers and panelboards, simplifying installation, enabling straightforward stocking, and supporting reliable integration.
• Versatile protection: Ideal for residential service panels, commercial distribution, and light industrial circuits that require robust 3-pole protection and clear fault response.

Technical specifications

• Manufacturer: Eaton
• Part number: KDC3300Y
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 300A
• Voltage rating: 600V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this matters: with a high 300A capacity and 600V rating, the Eaton KDC3300Y handles larger branch circuits while delivering fast, reliable fault clearing. The bolt-on design enhances mechanical security and minimizes connection drift in environments subject to vibration or equipment uptime demands. And because it’s compatible with matching OEM load centers and panelboards, you can install with confidence, knowing it integrates smoothly into your existing electrical infrastructure.

Use cases include upgrading service panels, expanding distribution in light commercial spaces, or reinforcing critical circuits in industrial settings where dependable overcurrent protection is non-negotiable. For installers and facility managers who value predictable trip behavior, durable mounting, and seamless compatibility, the Eaton KDC3300Y 3-pole bolt-on circuit breaker delivers clear, measurable peace of mind.