Sensors & Transmitters
Shenzhen Kinda Technology Co., Ltd.
30 Dec 2025
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Get Your Quote Now : Place of origin : China
Special AC Drive for Constant Pressure Water Supply SystemSpecial Ac drive for constant pressure water supply system Features:Special for constant pressure water supply systemPlastic caseBuild-in more than 10 years' water treatment experiencesInstalled on the pump directly Modbus communication for master-slave pumps1AC 220V, 0.4~2.2kW3AC 220V, 0.4~4kW3AC 380V, 0.75~7.5kWFully automatic operating Infineon IGBT insideEasy installtion, easy commissioningHigh control accuracyTotal failure ratio <0.5%Robust design Very less wiring connectionPressure controlled stablySpecifications
| Item | Technical Index | Specification |
| Input | input voltage | 1AC/3AC 220~240V±15%, 3AC 380~460V±15% |
| Input frequency | 50 / 60Hz±5% |
| Output | Output voltage | 0~rated input voltage |
| Output frequency | 0~6000Hz |
| Control Features | Control mode | Manual control Auto control |
| Operation command mode | Keypad control Terminal control Serial communication control (Modbus) |
| Overload capacity | 150% / 60s, 180% / 10s, 200% / 1s. |
| PID control | Built-in PID control standardly. |
| Automatic voltage regulation | Keep output voltage constant automatically when input voltage fluctuating |
| Main Protection Functions | Pressure | Upper limit protection Lower limit protection |
| Lack of water | Lack of water protection |
| Motor | Motor overload protection |
| Rust-proof & freeze-proof | Rust-proof and freeze-proof protection |
| Pipeline | Pipeline broken protection |
| Applications | Water supply system | Deep well pump, submersible pump, sewerage pump, pipeline pump, booster pump, multistage pump, centrifugal pump etc. Special for living water supply system, hot water supply system, high-rise water supply system, fire fighting water supply system, sewer system and irrigation system etc. |
| Human machine interface | LED display | Pressure setting, system pressure, output frequency, output voltage, output current, etc. Two lines display. |
| Environment | Ambient temperature | -10~50°C, without direct sunshine. |
| Humidity | 90%RH or less (non-condensing). |
| Altitude | ≤1000M: output rated power, >1000M: output derated |
| Storage temperature | -20~60°C |
Feature
| | Easy installation |
| 1 | Mounted on the pump directly, without additionla cabinet. |
| 2 | Modbus communication, very less wiring connection. |
| 3 | Multiple pumps system, only one pressure sensor is necessary. |
| | Easy operation |
| 1 | Few parameters setting. |
| 2 | Press-to-go, fully automatic running. |
| 3 | Pressure setting can be changed easily. |
| | Smart master-slave control |
| 1 | Mater inverter and slave inverter can be operated alternately, prolong the pump's life time. |
| 2 | Pumps are switched smoothly, no pressure vibration. |
| 3 | Pumps are increased / decreased automatically, alwasy keep constant pressure. |
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