A8 three-phase controller

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A8 three-phase controller

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Applicable power
0.37-2.2KW

Installation size
220mmX310mmX120mm

Application
It is suitable for automatic liquid level control and protection of single-phase stainless steel/cast iron deep well submersible pumps and pipeline pumps with 0.37-2.2KW direct start. Especially the unique design can realize sensitive and reliable pump dry rotation without installing the lower pool (water well) probe. The shutdown protection function is more convenient for the construction and installation of deep well submersible pumps and pipeline pumps and saves costs. The external AC starting capacitors required for the controller can be assembled (or optional).

Feature

●  Display features: HD LCD full Chinese dynamic display●  Control method: manual / automatic control
●  Level control characteristics: pulse electrode probe / float switch detection●  Pressure control characteristics: three-wire electric contact pressure gauge / two-wire pressure switch
●  Overcurrent protection●  Stall protection
●  Level/pressure direct transfer switch●  Probe free dry protection
●  Setting status indication●  Fool-type one-button lightning setting
●  Undervoltage/overvoltage protection●  LCD dynamic voltage / current display
●  Full protection for manual/automatic●  Pump cumulative running time query
●  Fast coverage type 5 fault record query ●  Probe reverse flashing prompt
●  Power failure call to quickly replenish water ●  Fast power off call delay protection
●  Fault sound and light alarm

 Technical Data

Rated output power: 0.37-2.2KWRated working voltage: AC220V/50Hz
Overcurrent action time: 5 seconds - 5 minutes (inverse time characteristic - the larger the current, the shorter the action time)Stalling action time: <0.1 seconds
Undervoltage/overvoltage action time: <5 secondsUndervoltage action voltage: 186V
Overvoltage action time: 254VOvercurrent fault recovery time: 30 minutes
Undervoltage and overvoltage recovery time: 5 minutesDry turn protection action time: 6 seconds
Dry-run protection recovery time: 30 minutesProtection level: IP22
Liquid level transmission distance: ≤200 meters (Try to use a thin wire diameter four-core cable to extend the liquid level transmission distance)