Tesla Motors Club
My main 200amp breaker tripped yesterday. The housing of the breaker was 200F. One leg was hotter than the other by 10F.
I have a 200amp main12 yrs old, feeding a 100amp generator sub panel, then a 50amp breaker going to the Tesla v2 charger. I monitor my main panel with "Emporia Energy" and I never get over 156 amps, at the time of failure I was running around 80 amps.
After letting it cool down I charge the M3 at 40amp for 15 minutes and one leg of the 100amp breaker is 20F hotter and one leg of the 200 amp is 10F hotter. The 50amp sub panel breaker to the tesla charger is not hot. The other main load on the sub panel is a 40amp driving an hvac which runs intermit and is not hot. The connections are tight. I will replace the 100amp breaker today and monitor with short charge sessions. I have a new 200 amp main breaker on order from Amazon.
Any ideas? Thanks.
I have a 200amp main12 yrs old, feeding a 100amp generator sub panel, then a 50amp breaker going to the Tesla v2 charger. I monitor my main panel with "Emporia Energy" and I never get over 156 amps, at the time of failure I was running around 80 amps.
After letting it cool down I charge the M3 at 40amp for 15 minutes and one leg of the 100amp breaker is 20F hotter and one leg of the 200 amp is 10F hotter. The 50amp sub panel breaker to the tesla charger is not hot. The other main load on the sub panel is a 40amp driving an hvac which runs intermit and is not hot. The connections are tight. I will replace the 100amp breaker today and monitor with short charge sessions. I have a new 200 amp main breaker on order from Amazon.
Any ideas? Thanks.