Switches And Switch Boxes

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AC Switch

Frequency 50 (60) Hz, ±3%
System Supply 240 V AC, ±20%, 1 Ph
Output Relay Contact 1 NO + 1 NO + 1 NO
Output Contact Rating 30 Amp @ 240 V AC (RLY 1 & RLY 2) 5 Amp (for RLY 3)
Current Setting 8-16 Amp (Variable)
Power ON Delay 2 mins., ±0.5 min (Fixed)

Protocom 1 is useful for two AC installations in small offices businesses, ATM centers, residential houses, for AC units of 1 or 1.5 Tons. In Logic One, only one AC is operated at a time and equal running of each AC is ensured during continuous operation. In Second logic, One or both ACs will run as per Demand. Built-in protection against UV, OV & OL for both AC units. PROTOCOM - 1Saves energy by alternatively using only one air conditioner (or both in case of temp rise) and that too only when it is required depending upon logic selected. Two Types of different operational logics can be selected with Protocom-1 through front Keys and display. These LOGICS are as follows.During Logic # 1 operation : Only one AC at a time will run for set time cycle in alternate mode. Changeover will take place only if a) Cycle time is completed; b) Running AC is tripped due to Overload; c) Over Temp condition is present for more that 10 minutes. If the room temperature keeps on rising even with the AC unit is in operation, it will energize OT alarm relay. It will stop running AC, ALARM LED will glow and switchover to another AC unit overriding present timing. Thus it also monitors and maintains the room temp. During Logic # 2 operation : One AC will be running as normal running AC for set time cycle. If temp rises above OT set point. second AC is switch on as stand-by running AC. This AC will be running until temp drops below OT-Hysteresis level (LIFO). In case, both AC are running and cycle time completes, none of the AC will be switch off or no change over will take place. However if temp drops below. OT-Hysteresis set point, first started AC will be made off and running AC will be considered as normal running AC (FIFO).

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