Originally Posted by sdyck
I bought my self a new Delta 8" 5 amp grinder.
should not be less than #12 wire and should be protected with a 20 Amp time lage fuse".
The plug on the grinder is a regular 15 amp style 3 bladed one, not the 20 amp plug.
Is their really a risk using a regular 15 amp circuit with 14 guage wire?
At what RPM does the grinder run? You have a link to the spec's on this grinder?
Here's some generic time-lag fuse info
If your motor comes up to speed in less than 1.0 second the fuse in the graph will hold if your startup current is less than ~5.3x the steady state value of current draw.
It'd be good if Delta would recommend a fuse part number and manuf. Fuses also have an interrupting current rating, and its pretty hard to specify what this needs to be for a resi. installation.
I'm wondering if there is a hidden cost of ownership for this grinder, specifically that it is very persnickety about its power source.
We had a thread on this Forum where a chopsaw tripped its breaker, but only about 1/4th of the time. If I recall, the fix was to use an extension cord with the saw.