Eaton Cutler-Hammer KD3400KW 400A 3P 600V Circuit Breaker | AmpState

Meet the Eaton Cutler-Hammer KD3400KW — a 400 A, 3-pole, 600 V circuit breaker designed to defend panelboards, load centers, and electrical distribution systems from overloads and faults. This unit is ideal for replacement projects and stocking spares when you need to keep the BOM aligned to the original part number.

• Amperage: 400 A
• Poles: 3-pole
• Voltage: 600 V
• Application: Circuit breaker for panelboards, load centers, and electrical distribution
• OEM alignment: KD3400KW matches the original BOM to minimize downtime and maintain catalog accuracy
• Availability: Available from AmpState, with support to confirm fit

Why choose this KD3400KW for your installation or service program?

• Replacement reliability: preserve the protection scheme of your existing distribution without reconfiguring wiring or bus layouts.
• Spare readiness: keep a ready-to-deploy unit on hand to minimize downtime during maintenance or emergencies.
• BOM integrity: align procurement and service contracts with the exact original part number to streamline ordering and record-keeping.

Ideal for: facilities engineers, electrical distributors, industrial maintenance teams, and OEMs who manage panel replacements, retrofit projects, or long-term spare Part Number control in commercial and industrial settings.

Compatibility help: Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Choose AmpState for fast access to OEM-grade breakers like the KD3400KW and receive expert guidance to keep your electrical distribution protected and BOM-consistent. Add this 3-pole, 600 V, 400 A breaker to your cart today and safeguard your panels with confidence.