FKDN400 | Circuit Breaker | 3-Pole

FKDN400 — a three-pole industrial circuit breaker designed for reliable protection in demanding electrical panels. This unit is ideal for maintenance, retrofit projects, and clean replacements where exact compatibility matters.

What makes it stand out

• Three-pole protection covers all three phases, ensuring balanced interruption and motor protection in three-phase systems.
• Part-number fidelity: identification by FKDN400 ensures you’re selecting the exact frame size, terminals, and interrupting characteristics your panel requires.
• Compact for retrofits: fits standard panel spaces, enabling straightforward swaps without reworking enclosures.
• Durable construction for industrial duty and frequent cycling in manufacturing environments.

How to use and verify

Always confirm fit and ratings before ordering. The part number is your best reference for compatibility with existing frames and replacement needs. Check your panel’s catalog or OEM documentation to verify voltage, current rating, and interrupting capacity align with the FKDN400.

Ideal use cases

• Maintenance: replace worn or failed breakers to restore reliable protection with minimal downtime.
• Retrofit: upgrade an aging panel with a 3-pole device to improve safety and control of three-phase loads.
• Replacement: straightforward swap for a like-for-like 3-pole breaker using the FKDN400 part reference.