Eaton | KD4300W | Circuit Breaker | 300A | 4-Pole | 600V

The Eaton KD4300W circuit breaker is a purpose-built solution for demanding electrical environments where precise protection matters. With a 300 A rating, 4-pole configuration, and a 600 V rating, this OEM-part is ideal for maintenance, retrofit, and replacement projects that require exact spec alignment.

• Current rating: 300 A, delivering reliable overload protection for main feeders and large distribution circuits in industrial panels.
• 4-Pole design: Provides complete isolation of all live conductors in 3-phase systems (including neutral where applicable), enabling safer maintenance and clearer fault isolation.
• Voltage rating: 600 V, suitable for demanding industrial distribution networks and equipment designed for higher-voltage operation.
• Definitive compatibility reference: KD4300W is the most reliable indicator for matching Eaton panels, accessories, and bus systems, reducing guesswork during replacements or retrofits.
• Maintenance, retrofit, and replacement ready: Engineered to align with Eaton’s specifications, ensuring proper protective coordination and minimizing downtime during upgrades or component swaps.

Designed for professionals who manage 3-phase power in manufacturing plants, data centers, and large commercial facilities, the KD4300W helps you maintain a safe, compliant electrical distribution system. When upgrading older protection schemes or replacing a failed breaker, this exact-spec Eaton part delivers peace of mind, consistent performance, and straightforward installation.

Important: Confirm fit and ratings before ordering. The part number KD4300W is the best compatibility reference—use it to verify that this breaker matches your panel catalog and retrofit requirements.

• Prepare your panel model and bus configuration to ensure seamless fitment.
• Keep a KD4300W on hand for planned maintenance to reduce downtime and keep power flowing smoothly.