Customization: | Available |
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Task: | Program |
Structure: | Closed-Loop |
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Engineered for excellence in water and wastewater applications, this versatile controller is perfect for water transfer, tank filling, tank emptying, and pressure boosting in hydro-pneumatic systems. Housed in a robust ABS enclosure, it ensures weatherproof reliability and suits both automated and manual operations seamlessly.
Parameter SpecificationsGeneral details | |
Model | L921 |
Main technical data | |
Start type | Direct on line |
Qty of controlled pump | Single pump |
Rated input voltage | AC220V-240V Single phase 50HZ/ 60HZ |
Rated output power | 0. 37kw-2.2kw (0.5hp-3hp) 3kw-4kw (4hp-5.5hp) |
Capacitor | Reserved space for installing stsrt capacitor |
Protection function |
Over load protection Pump stalled protection Dry run protection with sensor free Under voltage protection Over voltage protection Repeat start protection |
Application & Control characteristic |
Control and protect general pump Using water level sensor , float switch or pressure switch or level/pressure transmitter to control pump start and stop Applied for water supply by liquid level control through float switch or liquid probe Applied for water supply by pressure control through pressure switch and pressure tank Applied for drainage by liquid level control through float switch or liquid probe |
Other features | Pump last five faults record displaying Pump accumulative running time displaying Pump shaft anti-rust Present one dry contact point(BA port) LCD screen locked function under anto state Present RS485 port Present user remote monitor 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 310×220×120mm |