Installing a 50A fuse in a 200A pullout disconnect switch

[Tainted]

I am using a 200A pull out switch model PT224 by Boltswitch:

https://boltswitch.com/pdf/O-1352.pdf

I found a picture online for context, it's a different model pull out switch but the concept is the same.



It takes class T fuses. I want to put in a 50A class T fuses inside the pull out switch but it might be a problem since it is too small. Class T fuses 60A and below have different mounting than above 60A Class T fuses. 60A and below do not have "screw on" type mounting capabilities... Are there any 50A fuses available that have the same dimensions and "screw on" mounting capabilities kind of like the two fuses in the picture.

 

[electrofelon]

I am using a 200A pull out switch model PT224 by Boltswitch:

https://boltswitch.com/pdf/O-1352.pdf

I found a picture online for context, it's a different model pull out switch but the concept is the same.

View attachment 2563251

It takes class T fuses. I want to put in a 50A class T fuses inside the pull out switch but it might be a problem since it is too small. Class T fuses 60A and below have different mounting than above 60A Class T fuses. 60A and below do not have "screw on" type mounting capabilities... Are there any 50A fuses available that have the same dimensions and "screw on" mounting capabilities kind of like the two fuses in the picture.

No, and I'm pretty sure there are no reducers available for class T fuses

 

[kwired]

No, and I'm pretty sure there are no reducers available for class T fuses

Probably even less likely regardless of fuse class to find a reducer that goes from 200 amp frame to 60 amp frame?

 

[Tainted]

Probably even less likely regardless of fuse class to find a reducer that goes from 200 amp frame to 60 amp frame?

is there a 50A fuse that has the same exact dimensions as a 70A-100A fuse?

 

[Tainted]

No, and I'm pretty sure there are no reducers available for class T fuses

that's absolutely insane... why not though?

 

[kwired]

is there a 50A fuse that has the same exact dimensions as a 70A-100A fuse?

I don't believe so. That is one thing that is pretty consistent regardless of the fuse class. All fuses in any particular class have same frame within that class for 30 amp and below, 31-60 are all one frame size, 61-100, another frame size, 101-200, 201-400, 401-600....

 

[Tainted]

I don't believe so. That is one thing that is pretty consistent regardless of the fuse class. All fuses in any particular class have same frame within that class for 30 amp and below, 31-60 are all one frame size, 61-100, another frame size, 101-200, 201-400, 401-600....

I found something... but I don't even know if it's legit or if it'll work.

See link below page 4 model fuse model JLLN050L

https://www.littelfuse.com/media?re...871-38e7378ac8f3&filename=jlln-fuse-datasheet



I haven't found any other 50A fuse like this..

 

[LarryFine]

Try these guys: http://www.thefusecompany.net/

 

[kwired]

I found something... but I don't even know if it's legit or if it'll work.

See link below page 4 model fuse model JLLN050L

https://www.littelfuse.com/media?re...871-38e7378ac8f3&filename=jlln-fuse-datasheet

View attachment 2563253

I haven't found any other 50A fuse like this..

all other fuses listed with it that are apparently same dimension are 35-60 amps and likely fit in a 60 amp fuse holder for that style of fuse.

 

[Tainted]

Try these guys: http://www.thefusecompany.net/

i contacted them so hopefully i'll get a response

 

[winnie]

Is your goal to use any 200A fused disconnect with 50A fuses, or this particular disconnect?

 

[Tainted]

Is your goal to use any 200A fused disconnect with 50A fuses, or this particular disconnect?

Just this disconnect. Also with a 100A pullout too