Not to argue but the actual propose of an ATS is to prevent the shore line from being hot when the genset is running. ATS's are found in factories, homes and camps to keep from back-feeding to the power companies high lines. ATS are rated by the continuous amperage capacity and still keep the switch contacts below 60 degrees centigrade. None that I know of have switching amperage ratings. Heavy switching loads cause the points of the ATS to arc. Electrical arcs produce heat. Sufficient heat will weld the points together or pit the points at the least.
From the Furron F50 - ATS operating instructions
Ensure the air conditioning units and all other high current users are switched off. It is harmful for the transfer switch to switch over power sources while under load.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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