Eaton | HKDDC3300 | Circuit Breaker | 300A | 3-Pole

Powerful protection for demanding electrical systems, the Eaton HKDDC3300 circuit breaker delivers 300 amperes of reliable fault protection in a 3-Pole configuration. Designed for maintenance, retrofit, and replacement projects, this breaker aligns with exact Eaton specifications to keep your panels performing at their best.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Applications: maintenance, retrofit, and replacement where matching specs are required
• Compatibility reference: Part number HKDDC3300 is the best reference for ensuring a proper fit

Why this Eaton breaker is the right choice

The HKDDC3300’s 3-Pole design provides protection across all three connections, supporting coordinated safety for your electrical setup. Its exact-specification construction helps minimize compatibility issues during panel upgrades or service work, reducing downtime and simplifying procurement by focusing on a precise part reference.

Practical use cases

• Maintenance projects where exact matching specs are required to avoid compatibility problems
• Retrofits in Eaton-compatible panel boards or switchgear that require a 300A, 3-Pole device
• Repairs or replacements in service equipment where consistent, reliable protection is essential

Installation and safety notes

Before ordering, confirm fit and ratings are a perfect match for your panel. Use the part number HKDDC3300 as your primary compatibility check, and follow standard electrical safety practices during installation to ensure a seamless, safe replacement.