bigjer
Member
- Location
- riverton ut.
I couldn't find a topic comparison so here it is.
i've got a 240 volt heat tape circuit 250' long maxed out on a 20 amp epd controlled by a eti snow sensor. Snow sensor is tied to the coil at 120volts to pull in a contactor 40amps resistive,using a seperate circuit thru the sensor to avoid problems with inrush.
This is a field constructed control one of many ive put togeather some worked well & some not
the problem i have is that the contactor at some point will not stay closed & begin to rattle & make a huge racket. can someone help me with my design problem
the wireing is all in # 12 thhn.
i've got a 240 volt heat tape circuit 250' long maxed out on a 20 amp epd controlled by a eti snow sensor. Snow sensor is tied to the coil at 120volts to pull in a contactor 40amps resistive,using a seperate circuit thru the sensor to avoid problems with inrush.
This is a field constructed control one of many ive put togeather some worked well & some not
the problem i have is that the contactor at some point will not stay closed & begin to rattle & make a huge racket. can someone help me with my design problem
the wireing is all in # 12 thhn.