Bucket assemblies for motor control centers (mcc) with disconnect assemblies and related mcc cabinets and methods
AssigneeEaton Corporation
InventorsStephen W. Oneufer, Robert A. Morris, Daniel B. Kroushl
Life of this patent
Estimating the term…
Abstract
Circuit breakers with a rotary handle attached to an inwardly oriented shaft that connects to a gear assembly that translates rotational input to linear input also include a trip assist spring in communication with the rack gear so that, in operation, the trip assist spring applies a force to the operator slider and forces the handle to a consistent trip position.
Claims15
A bucket assembly comprising tandem (line to line) dual circuit breakers positioned with first and second spaced apart rotary handles positioned vertically and horizontally aligned.
A Motor Control Center (MCC) cabinet with bucket units, the bucket units having a common size external rotary handle that each communicates with a respective internal disconnect assembly that engages a respective toggle or switch of an internal circuit breaker or a fused disconnect switch, wherein the different units can have different frame sizes associated with different amperage ratings, and wherein the rotary handles all rotate 90 degrees between OFF and ON positions and have a common trip orientation.
A modular bucket assembly with an external rotary handle that communicates with a gear system having a rack gear and slider, wherein the modular bucket assembly is provided in different sizes that accommodates one or both of:
- (i) different frame size circuit breakers of different amperage rating or (ii) both a circuit breaker and a disconnect switch in communication with a fuse, and wherein each modular bucket assembly, irrespective of frame size or whether a circuit breaker or disconnect switch, comprises a common size and shape respective external rotary handle that has common ON and OFF orientation.
Dependencies are inferred from the claim text.