Application & Control characteristic:

• Control and protect universal pump
• Adopting liquid probe, float switch or pressure switch to control pump start and stop
• Applied for water supply by liquid level control through float switch or liquid probe
• Applied for booster by pressure control through pressure switch and pressure tank
• Applied for drainage by liquid level control through float switch or liquid probe
• Applied for sewage pump with piggy-back float switch

Features:

• Pump last five faults record displaying
• Pump accumulative running time displaying
• Pump shaft anti-rust
• Present RS485 port
• Overflow alarm for drainage application
• Remote control panel (Optional)
• LCD screen displaying pump running status
• LCD screen locked function under auto state (Settable)
• Push button calibration
• Memory function when power off & recovery
• Signal transmission distance up to 1000m
• Pump start time delay (Time settable)
• Pump stop time delay (Time settable)
• WIFI module (Optional)

Specifications:

MODEL

L531

L931

Main technical data

• Start type
• Qty of controlled pump
• Rated input voltage
• Capacitor
• Rated output power

DOL (Direct on line)

Single Pump

AC380V/AC400 Three phase

0.75-4kw (1hp-5.5hp)

5.5kw-11kw (7.5hp-15hp)

15kw (20hp)

Max. Motor

Output at 380V 3Ph

Full Load

Max (A)

Starting Current Max (A)

HP

KW

1.0

0.75

12A

60A

1.5

1.1

2.0

1.5

3.0

2.2

5.0

3.0

5.5

4.0

7.5

5.5

25A

125A

10.0

7.5

15.0

11.0

20.O

15.0

32A

160A

Protection Function

• Overload protection
• Pump stalled protection
• Dry run protection with sensor free
• Under voltage protection
• Over voltage protection
• Repeat start protection
• Open phase protection
• Overload protection
• Pump stalled protection
• Dry run protection with sensor free
• Under voltage protection
• Over voltage protection
• Repeat start protection
• Phase unbalance protection
• Phase reversal protection
• Open phase protection
• Over temperature protection

Main installation data

• Working temperature
• Working humidity
• Degree of protection
• Mounting type
• Unit dimension (L x W x H)

-25°C-- +55°C

20%--90%RH, no drips concreted

IP54

Wall mounting

300× 240×120mm

SET/CTN Packing Size

6 sets/ctn 69*58*46cm

Connectable sensors

Liquid probe (standard accessory) / Float switch / Pressure switch