A couple of days ago I was on a service call on a 250hp 3p 480vac agricultural well that blew a 400A fuse. The fused disconnect feeds an autotransformer soft starter. The equipment is pretty old and worn out. The fuse holders/lugs/wires for the blown fuse had clearly overheated. I cleaned...
Can anyone make suggestions for soft starters that tolerate high heat and a bit of dirt? I need one for a 100 hp 3P 480V motor on an agricultural well in Arizona. Record high temp in the area where this would be installed is 124F.
I found a WEG that will tolerate 55C but I'd still like...
