The device is suitable for single phase submersible pumps. By monitoring undercurrent it avoid problems caused by dry running, cavitation etc.
It doesn't need any level electrodes.
Technical data
Power supply terminals
L-N
Rated supply voltage(Un)
AC220V±20%,50/60Hz
Current input terminals
B1-B2
Current setting
0.5A~5A
Undercurrent setting
(0.4-0.9)x current setting value
Overvoltage trip value
265V
Undercurrent reset time
2~60min
Undercurrent trip delay
4s
Overvoltage trip delay
1s
Reset mode
Manual, automatic
Trip class
10
Current load
＜8A/AC1
Output contact
1C/0
Rated insulation voltage
250VAC
Max. fuse ratings
RT36-00 5A
Protection degree
IP20
Pollution degree
3
Electrical life
105
Mechanical life
106
Altitude
≤2000m
Ambient temperature
-25℃~+50℃
Permissable relative humidity
≤50% at 40℃（without condensation）
Storage temperature
-25℃~+75℃
Conductor size
0.5~2.5mm2
Tightening torque
0.5Nm
Front-face panel
Function diagrams
Wiring diagram
