600 Amp Safety Switch

[PsychicViking]

Does anyone know of a manufacturer who makes a Type 3R 600v 600A Safety Switch for Class L fuses. An Engineer specified this and I can not find one. I can only get an 800A with a 601A fuse. I really need one that will hold the 600A size.

 

[augie47]

Do they make a 600 amp size Class L Fuse ?
The lists I have jump for 500 amp to a 601 making it appear that you would have to have the 800 amp switch.

 

[jim dungar]

Class L fuses are a minimum of an 800A body, so you will need to use an 800A switch.

 

[PsychicViking]

Ferraz-Swawmut lists 100-600A class L fuses with the same dimensions. Then lists 601-800A class L fuses with different dimensions.

 

[PsychicViking]

The Ferraz Shawmut fuses are only UL listed 601-6000A even though they make them starting at 100A. I will tell the engineer to do the calculations using a differnt class of fuse. Thanks.