I have been looking for an Old Westinghouse Heater chart. I have a old DO-ALL saw which was running on 480v 3ph it was swithced over to 240 3ph and now the heaters are tripping. If anyone has a chart or know what my numbers mean that would be great. The heaters now are H31 for the saw motor and H12 for the pump. Also if anyone know where to buy these older style heaters that would be great. Thanks in advance for any help.