unobtainium

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petersonra

Senior Member
Location
Northern illinois
Occupation
engineer
So I am reading the manual for some Schneider drives. A 500HP drive is supposed to have 800A class T fuses on the front end. I can find 800A class T fuses, but no 800A class T fuse blocks. The bolt pattern on the terminals for the drive does not match up to an 800A class T fuse.

Fortunately, the customer decided that he needed a 600HP drive, so the problem went away, sort of. The 600HP drive has 2 DC sections that are shown as having two sets of 500A class T fuses. With switches on the fuses to shut down the drive in case a fuse opens. Can't find any class T fuses with switches either.
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
I have not had an opportunity to search, but I did inspect a 1200 SquareD install recently with a 240v 1200 switch with Class T fuses. Unsure about 480v,.
 
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