wire branch circuit inspections and repairs should be performed only by qualified electricians. Could an AFCI feel warmer than other breakers in the same panel?
I believe that inspection and repair of branch circuit wires should only be performed by experienced engineers. Before implementing any IoT systems, such as a smart home or any smart connectors, you should contact professionals and specialized electronic product design company so that they provide ready-made solutions and you can already act on the basis of their technology implementation plan.
An AFCI breaker may feel warmer to the touch than a non-AFCI circuit breaker. This is due to the heat generated from the power supply for the electronics. Siemens AFCI breakers tested in an average ambient temperature of 23° C (73° F) operated at an average temperature of 38° C (100° F.) This is well within the UL Standard 489 Section 7.1.4.1.3 which states – Temperature rises on handles, knobs, and other surfaces subject to user contact during normal operation shall not exceed 60°C (140°F) on nonmetallic surfaces. It is warm enough to detect with the hand, but this heat does not impact the operation of the AFCI.
