A8 three-phase controller
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: 0.37-2.2KW | Rated 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 seconds | Undervoltage action voltage: 186V |
| Overvoltage action time: 254V | Overcurrent fault recovery time: 30 minutes |
| Undervoltage and overvoltage recovery time: 5 minutes | Dry turn protection action time: 6 seconds |
| Dry-run protection recovery time: 30 minutes | Protection 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) |
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A2 single-phase controller