for controlling defrost timing in the systems of refrigerators,freezers,display cases and other refrigeration systems. The DBLT Series Defrost Timer is a single cam control which activates a SPDT switch.Both the operating cycle and switch transfer duration are pre-set at the factory and are not adjust-able.The cycle will repeat as long as the motor is energized.An internal clutch mechanism permits initial adjustment of the cycle starting time.The DBLT Series defrost timer is applicable for controlling defrost timing in the refrigerating systems of refrigerators,freezers,display cases and other refrigeration systems.   Power factorCOS)125VAC  250VAC  Resitence load current  1         1~8A   0.5~5A  Normal current          0.75      1~6A   0.5~4A  Normal current          0.45      1~24A  0.5~16A  .Timing defrost requirement Work cylce(50/60Hz)      Frost melting & restore time(50/60Hz)