I have a customer using a 5519 that is getting an unexpected reset when they turn off an output with a large contactor attached. They have investigated and it is a WDT reset. The contactor is being driven by a small relay on the board that is controlled by the MSP430 through a transistor. That circuit has worked fine for some time, the issue has only arisen with the contactor. They can make the problem go away with a snubber on the contactor but would much rather not have to do that. We understand this is being caused by inductive kick in the contactor but how is that getting back to the MSP430 through the smaller relay? The contactor is off of the board and the coil is being powered by a seperate supply.