When Mode B is selected and the unit is in the timed cycle (clock dip switches in the on position), the load will be turned on with the back up source. At the end of the timed cycle, the unit will return to normal operation until the next preset interval occurs. If Mode A is selected, the load is off during the timed cycle and the back up source will be on. At the end of the timed cycle, the unit will return to normal operation until the next preset interval occurs. Timed or manual termination Adjustable 15 min to 23 hours 45 min defrost cycle High power relay outputs 100% monitoring of inputs and outputs Simple to use, drag & drop replacement for popular models User-friendly time clock Rugged, NEMA/TYPE 4X rated plastic, weatherproof enclosure Easy to mount and lockable Helps to protect controls from harsh environmental conditions such as temperature, shock, humidity and vibration SPECIFICATIONS ELECTRICAL RATING Voltage: 120-240VAC Frequency: 60 Hz OUTPUT Type: Relay Form: SPDT, SPST Rating: [2] & [4]: 30A R, 1HP @ 120 VAC, 2HP @ 240 VAC [1] & [3]: 40A R, 1HP @ 120 VAC, 2HP @ 240 VAC [1] & [F]: 30A R, 1HP @ 120 VAC, 2HP @ 240 VAC TIMING Minimum cycle time: 15 min Maximum cycle time: 23 hr 45 min Terminate cycle: Cycle can be terminated by shorting “X to N” STATUS LED Cycle mode: (Red LED) Normal mode: (Green LED)