Cutler-Hammer KD3400T52W Circuit Breaker, 400A, 3-Pole, 600V

Meet the Cutler-Hammer KD3400T52W—an industrial-grade circuit breaker built to protect demanding electrical systems. Designed for service, maintenance, and replacement projects, this 400 A, 3-pole unit delivers reliable overcurrent protection in challenging environments while keeping your three-phase distribution running smoothly at up to 600 V.

Key specifications at a glance

• Amperage: 400 A
• Pole configuration: 3-pole for three-phase applications
• Voltage rating: 600 V
• Manufacturer: Cutler-Hammer
• Part number: KD3400T52W

Why this KD3400T52W stands out

• Industry-ready protection for heavy-duty equipment and feeders in industrial facilities, ensuring quick isolation during faults and minimizing downtime.
• Three-pole design simplifies integration with standard three-phase panels and bus layouts, reducing wiring complexity and installation time.
• Durable, field-tested performance suitable for replacement projects where precise fit and dependable operation matter most.
• Clear compatibility path: confirm fit by the exact part number KD3400T52W and review your application requirements to ensure proper footprint and trip characteristics.

Use cases and scenarios

• Upgrading aging panels in manufacturing lines where robust three-phase protection is essential.
• Replacing worn or failed breakers in service entrances, distribution boards, or control panels as part of routine maintenance.
• Installing in new installations that require a reliable, high-capacity 400 A, 3-pole solution up to 600 V.
• Situations where a trusted brand like Cutler-Hammer is preferred for long-term reliability and serviceability.

How to ensure a perfect match

• Verify fit by part number: KD3400T52W. Cross-check enclosure footprint, mounting style, and compatibility with your panel or switchgear.
• Review your system’s voltage, conductor sizing, and protective coordination requirements to ensure optimal protection strategy.
• Need help confirming compatibility? Message us and we’ll assist in validating the part number against your application.

Practical guidance for installation and care

• Install by qualified electrical professionals in accordance with applicable codes and standards.
• Inspect for secure mounting and proper electrical connections; verify torque and terminal integrity during commissioning.
• Maintain clear documentation of part number KD3400T52W for future replacements and service planning.

Whether you’re replacing an aging unit, upgrading a panel, or stocking spare parts for outages, the Cutler-Hammer KD3400T52W offers dependable, high-capacity protection you can trust. Align your exact needs with the KD3400T52W by confirming the part number and application requirements—and if you’re unsure, reach out for expert guidance to ensure a seamless match.