The A1400 Series are low cost repeat-cycle timers primarily intended for household refrigerator defrost control and can be wired for electric heating or hot gas defrosting. They can be applied to any process requiring a continuously repeating cycle of contact operations.
These are single-cam controls which activate an SPDT switch. Their operating cycle consists of transferring the switch for a pre-set duration once every 6 hours. Both the frequency of operation and switch-transfer duration are pre-set at the factory and are not adjustable. The cycle will repeat as long as the motor is energised. An integral clutch mechanism permits initial adjustment of the cycle starting time.