On Sep 3, 6:19*pm, "The Streets"
wrote:
I have a 30amp 240 volt circuit breaker for the heater in a hot tub.

With the circuit breaker off, the case temperature is 83 deg F (the
ambient temperature) measured with an IR temperature sensor.

I turn on the breaker and the hot tub. After about 10 minutes,
the case temperature is 99 deg F.

Does this sound normal?

The breaker doesn't trip, but I don't have a reading on actual
current flow.

It should not be that warm, maybe the HT has a short,