A single-pole electrical contact, capable switching up to 15 amps at 240vac, constitutes the output of the switch. For long life and quiet operation, mercury displacement relays are suggested. The AutoMate II Kiln Switch may be installed on the kiln, or in a remote enclosure. Insert the AutoMate II in this cut-out and mark the locations for its four mounting screws. Small kilns drawing less than 15 amps can be operated directly by the control's output contact.
Larger kilns require a separate power relay, sized according to the nameplate current of the kiln.
For 220vac systems, connect terminal b to terminal c . Connect the output contact of the AutoMate II to interrupt current either to the kiln's electric heaters, or the solenoid coil of the power relay. This normally-open contact is provided between terminals H1 and H2 . If using a power relay, connect H1 to a L1 auxiliary terminal on the power relay, then connect H2 to either one of the power relay's coil terminals. Next connect the second coil terminal to a L2 auxiliary terminal on the same power relay.