Final answer:
The correct size of a Type C MCC bucket cannot be determined without specific context from applicable standards or manufacturer documentation.
Step-by-step explanation:
The question seems to be referring to the size of Motor Control Center (MCC) Type C units or buckets. However, without the context provided by a specific code or standard, such as the National Electrical Code (NEC), it's not possible to give a definitive answer to the question, "Type C, MCC Size ? or smaller units or buckets, are factory-wired from unit-located terminal blocks to the master terminal blocks."
Typically, MCC units are standardized in sizes that correspond to the physical dimensions and the maximum current capacity they can handle. These sizes are often referenced in industry standards and manufacturers' specifications. The actual size designation, such as 3, 4, 5, or 6, would depend upon the specific standard or manufacturer's product line. Therefore, for an accurate answer, one would need to consult the MCC manufacturer's documentation or the applicable industry standards.
Sizes typically refer to physical dimensions and current capacities, which are standardized but vary by manufacturer or industry standard.