unobtainium

[petersonra]

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.

 

[milldrone]

Would this be what you are needing?
http://www.onlinecomponents.com/ferraz-shawmut-a50p4004ta.html?p=43517194
http://www.galco.com/buy/Mersen-formerly-Ferraz-Shawmut/A50P400-4TA

 

[augie47]

or

https://eb.automation.siemens.com/mall/en/us/Catalog/Product/?mlfb=US2:TFAK75

 

[petersonra]

It appears no one makes a class T fuse with a switch.

 

[augie47]

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,.

 

[J.P.]

Have you tried killing off the indigenous species and claiming whatever you see in order to acquire your unobtainium?

 

[petersonra]

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,.

I am looking for fuses with switches on the fuses

 

[jim dungar]

I am looking for fuses with switches on the fuses

Which vendors have you tried? I assume all of the big ones.

I can't tell if these can be ordered on every possible fuse.
http://www.ferrazfuses.com/cms_admi...php/bin/ACCESS_ Blown Indicator TI-TA-AOS.pdf

 

[petersonra]

Which vendors have you tried? I assume all of the big ones.

I can't tell if these can be ordered on every possible fuse.
http://www.ferrazfuses.com/cms_admi...php/bin/ACCESS_ Blown Indicator TI-TA-AOS.pdf

I am looking at adapting 6 Shawmut triggers to do it. Schneider is not real helpful at explaining why their manual says to use a part that does not appear to exist.