KD388 (11~110kW)

Features

Special for constant pressure water supply system
Plastic(11~18.5KW) and steel case(22KW and above)
Build-in more than 10 years' water treatment experiences
Modbus communication for master-slave pumps
3AC 380V, 7.5~110kW
Fully automatic operating
Infineon IGBT inside
Easy installtion, easy commissioning
High control accuracy
Total failure ratio <1%
Robust design
Very less wiring connection
Pressure controlled stably

KD388 (11~110kW)
Specifications
Features
Selection

Item

Technical Index

Specification

Input

input voltage

3AC 380~460V±15%

Input frequency

50 / 60Hz±5%

Output

Output voltage

0~rated input voltage

Output frequency

0~600Hz

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

 
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.



Inverter Model

Pump

Rated Input Current (A)

Rated Output Current (A)

kW

HP

    3AC 380~460V±15%
KD388-01100T4
11
15
26
25
KD388-01500T4
15
20
35
32

KD388-01850T4
18.5
25
38.5
37
KD388-02200T4
22
30
46.5
45

KD388-03000T4

30

40

62

60
KD388-03700T4
37
50
76
75
KD388-04500T4 45 60 82 90
KD388-05500T4 55 75 113 110
KD388-07500T4 75 100 157 152
KD388-09000T4 90 120 180 176

KD388-11000T4

110

150

214

210