KDB3300 | Circuit Breaker | 300A | 3-Pole | 600V

The KDB3300 industrial circuit breaker is a rugged, reliable solution for protecting your three-phase electrical systems. Designed for maintenance, retrofit, and replacement applications, this unit provides precise 300A protection that fits seamlessly into existing 600V distributions where exact specifications matter.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V

Important compatibility notes: always confirm fit and ratings before ordering. The part number KDB3300 is the most reliable reference for ensuring a correct match with your equipment and panel configuration.

Ideal use cases

• Maintenance tasks on aging or outdated panels where the 300A, 3-Pole, and 600V specs match your existing setup
• Retrofit projects upgrading distribution to a compatible, standardized circuit breaker profile
• Replacement scenarios that require exact spec alignment to minimize downtime and ensure consistent protection

Why choose the KDB3300 in your 3-phase, 600V distribution? It delivers deterministic protection for critical loads, simplifies documentation by aligning with a clear part reference, and supports straightforward replacement without altering upstream wiring when the specs match exactly.

Practical tips for use:

• Verify that your panel or distribution board is rated for 600V and supports a 3-Pole configuration before ordering.
• Keep the KDB3300 as a documented reference in spare part inventories to speed future replacements and maintenance calls.
• When replacing, ensure the replacement maintains the same amperage (300A) and pole count (3) to preserve system protection characteristics.