Eaton HKD3400F is a three-phase, 400A circuit breaker frame sold as frame only, with no breakers included. It is designed to house a compatible 3-pole circuit protection module for installation in electrical distribution equipment that specifies a 400A frame. Use cases include mounting a suitable Eaton circuit breaker in a 3P 400A frame within panel boards or switchgear assemblies where a frame of this size is required.
