ptonsparky
Tom
- Occupation
- EC - retired
Can someone enlighten me as to how an MCC bucket was given that name?
Can someone enlighten me as to how an MCC bucket was given that name?
I am completely guessing since I am not as old as MCC's, but many of them are designed where the entirety of the motor's disconnecting, overcurrent overload and controls are all mounted in a three or four sided metal (enclosure) that is then bolted in placed and wired with jumper wires. Easily removable and replaced. Even writing this I had a hard time not calling the enclosure a bucket, because it is like a square bucket turned on its side.
That's an accurate description. Over time, most MCC mfrs changed their designs to remove the side walls and others went further to remove almost all solid barriers in favor of stick frames so that they no longer really resemble a "bucket", but the name stuck.
I remember when dirt was a mountain...So, you are admitting that you are older than dirt.
Well this thread has answered something that has been puzzling me.
As for old systems, our crusher control panels were open slate when I started in the trade. Motors would start in groups via a large contactor.
This is the back of a small panel
He exposed his own ignorance. Sounds like he was referring to Metal Clad Switchgear, in which those are referred to as "Cells" not buckets.... He explained I must not have done much industrial work. As in large switch board enclosures where the whole switch comes out as one .