Skutt Relay – 50 Amp – Single Phase for KM-1 Wall MountKPS Part Numbers 1000125 Skutt Part Numbers 1982T20338 Why does the KM 1 wall mount controller use a different style of relay than most other kilns? The higher amperage requirements of the KM 1 wall mount controller dictates that it must use a contactor capable of handling the increased amperage. The KM 1 wall mount controller uses a different style contactor than all other kilns. Instead of using a 12v dc signal to drive the main relay, all KM 1