Industrial DK3400KX02 400A 3-Pole 240 V Circuit Breaker

Industrial DK3400KX02 400A 3-Pole 240 V Circuit Breaker is built for demanding power systems where reliability and rapid fault isolation matter. This 400 amp, 3-pole device protects three-phase circuits at up to 240 volts, delivering dependable overcurrent protection for industrial panels and feeders.

Key specifications

• Part Number: DK3400KX02
• Current rating: 400 A
• Poles: 3
• Voltage rating: 240 V

Why this 3-Pole, 400A breaker stands out

The 3-pole configuration ensures simultaneous disconnection of all phases in a three-phase system, improving safety and reducing the risk of neutral or ground faults during a trip. With a 400 A rating, it is well-suited for protecting heavy loads and large motor circuits, while maintaining compatibility with standard industrial distribution boards at 240 V.

Ideal use cases

• Main disconnect or feeder protection in industrial control panels and distribution boards
• Protection for large three-phase motors and feeders in manufacturing facilities
• Protection for custom electrical installations requiring 240 V three-phase protection with high current capacity

Practical considerations

When integrating the DK3400KX02, verify compatibility with your panel architecture and follow your local electrical codes. This breaker is designed for industrial environments where reliable performance and straightforward maintenance are essential. Always refer to the official installation instructions for torque specifications, mounting orientation, and replacement procedures.