Water Pump Booster System L931-B

• Customization: Available
• Task: Program
• Structure: Closed-Loop
• Model NO.: L931-B
• Mathematical Model: Linear
• Signal: Continuous
• Function: Automatic Control
• Protection Grade: IP54
• Rated Input Voltage: AC380/50Hz
• Rated Range: 0.75~4kw / 5.5-11kw /15kw
• Starttype: Dol
• Phase: 3 Phase
• Transport Package: Carton
• Trademark: Leading Science & Technology
• Origin: China
• HS Code: 90328990
• Production Capacity: 5000PCS/Year

Product Description

Pump booster system L931-B

Main spec:
Rated Input Voltage: AC380V/50HZ, Three Phase
Rated Output Power: 0.75kw-4kw(1hp-5.5hp) 5.5kw-11kw(7.5hp-15hp) 15kw(20hp)

General detail:
Application	Control & protect booster pump only
Model	L931-B
Main technical data
.Start type	Direct on line
. Qty of controlled pump	Single pump
. Rated input voltage:	AC380V Three phase 50HZ/ 60HZ
. Rated output power:	0. 75kw-4kw (1 hp-5. 5hp) 5. 5kw-11kw (7.5hp-15hp) 15kw (20hp)
Protection function	Over load protection Pump stalled protection Dry run protection Under voltage protection Over voltage protection Repeat start protection Phase unbalance protection Phase reversal protection Open phase protection
Control characteristic	Connecting 0.5-4.5V pressure transmitter to replace pressure switch Pump start and stop according to different pressure value setting
Other features	LCD screen displaying dynamic real time pressure value Pump start and stop pressure value can be easily setting on the LCD screen Pump accumulative running time recording Pump last five faults record displaying Presenting one dry contact point (BA port) Present RS485 port Present user remote monitor LCD screen locked function under Auto state Push button calibration
Main installation data
Working temperature Working humidity Degree of protection Install position Unit dimension (L x W x H)	-25ºC-- +55ºC 20%--90%RH, no drips concreted IP54 Wall mounting 310 x 220x 120mm

Application:
Control&Protect three phase pump, DOL

Main features:
1. Single pump control;
2. Present pressure transmitter with 0.5-4.5V analog signal;
3. Easily setting the different pressure value and observing the dynamic pressure value;
4. Eliminates the pressure switch, pressure setting for one pump;
5. Automatically stop the pump in the case of water stortage, protecting it from drying
Running without installing the float switch or liquid probe in the wall;
6. Auto/Manual switch;
7. Pump accumulative running time displaying;
8. Pump last five fault record displaying;
9. LCD displays pump running information;
10. Protect the pump against many faults;
11. Grade of protection IP54;
12. Present remote monitor;
13. Present one dry contact point;
14. Visual & Audio alarm for fault prompt.