- Joined
- May 28, 2013
- Messages
- 202
After converting the lathe motor from 440 to 220, I am now checking the fuses for proper size.
I have some confustion on the proper type and class I should use and need advice?
The disconnect on the South Bend 13 is not a motor starter.
The motor is 1 hp, 3 phase, and has 3 fuses in place. The FLA is 3.2 at 60Hz, and 40c.
The fuse found in the disconnect is a Shawmut, time delay, renewable fuse, RF30, 30 amps, 250v, class H. The fuse is 2" x 9/16".
This fuse size seems a bit large for this motor. If I use the basic 3.2 amps x 1.25 = 4 amps.
Can I order the same type fuse as found, class H, RF5 and replace the three RF30?
toolman_ar
I have some confustion on the proper type and class I should use and need advice?
The disconnect on the South Bend 13 is not a motor starter.
The motor is 1 hp, 3 phase, and has 3 fuses in place. The FLA is 3.2 at 60Hz, and 40c.
The fuse found in the disconnect is a Shawmut, time delay, renewable fuse, RF30, 30 amps, 250v, class H. The fuse is 2" x 9/16".
This fuse size seems a bit large for this motor. If I use the basic 3.2 amps x 1.25 = 4 amps.
Can I order the same type fuse as found, class H, RF5 and replace the three RF30?
toolman_ar