Cutler-Hammer BKKD400T Circuit Breaker, 400A, 3-Pole, 480V

Cutler-Hammer BKKD400T circuit breaker is built for industrial environments where reliability and quick, clear fault isolation matter. This 400 A, 3-pole unit protects 480V three-phase electrical systems, making it a practical choice for manufacturing floors, large facilities, and maintenance-driven replacement projects. Designed to integrate with Cutler-Hammer assemblies, it serves as a robust, ready-made solution when you need dependable interruption in demanding service conditions.

Why this BKKD400T stands out

• Exact part-number compatibility ensures you’re selecting a breaker that fits the intended Cutler-Hammer panels and gear. Use BKKD400T to match the exact specification for your installation.
• Three-pole configuration provides balanced protection across all three phases, essential for motors, conveyors, and other three-phase equipment.
• 480V operation aligns with common industrial distribution standards, streamlining replacements and upgrades in heavy-duty facilities.
• 400 A rating accommodates substantial load profiles, making it suitable for sizable feeders and motor circuits without excessive nuisance trips.
• Industrial-focused design supports service, maintenance, and replacement tasks, helping minimize downtime during outages or upgrades.

Compatibility and installation notes — Verify fit by part number (BKKD400T) and ensure your application requirements align with this unit. If you’re unsure about compatibility or need help confirming how it fits your panel or system, reach out and we’ll assist in verifying the match with your equipment and specifications.

Specifications at a glance

• Part Number: BKKD400T
• Product Type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 480 V
• Brand: Cutler-Hammer (Eaton)

Use cases and ideal applications

This breaker is well-suited for:

• Industrial service calls and routine maintenance on three-phase systems
• Replacement of failed breakers in compatible Cutler-Hammer panels
• Upgrades to larger motor and feeder circuits within manufacturing facilities, warehouses, and processing plants
• Emergency fault isolation to protect equipment and personnel on 480V distributed power

In short, the Cutler-Hammer BKKD400T is a purpose-built solution for professionals who need a reliable, compatible 400 A, 3-pole breaker for 480V three-phase applications. Its part-number-driven compatibility, robust rating, and alignment with industrial workflows help ensure a smoother replacement process and quicker restoration of service.