After years of development, with advanced R&D capabilities and professional operating capabilities, we have become a leading enterprise in the industry of Doi Starter 3 Phase Irrigation Pump Control Panel For Holidays House, IP54 Duplex Pump Controller, Intelligent Single Phase Pump Control Panel Over Load Protection and occupy an important position. With our mature design, exquisite craftsmanship, precise manufacturing and processing and professional solutions, we have won users' recognition and praise. As a professional and experienced company, our success is inseparable from our efficient management team, strong technical support, and experienced product designers and manufacturers.
0.37-2.2KW Single Phase Pump Control Panel
| Product Details: Place of Origin:CHINA BrandName:LEADING Certification:CE Model Number:L921 Payment & Shipping Terms: Minimum Order Quantity:1 set Price:Negotiable PackagingDetails:Carton Delivery Time:30-35 days Payment Terms:D/A, D/P, T/T |
Detailed Product Description
Phase: | Single Phase | Pump Controlled Quantity: | One Pump |
Enclosure Protection Grade: | IP54 | Displaying: | LCD Display |
Liquid Level Transfer Distance: | ≤1000m | Unit Dimensions ( L X W X H): | 30.2 X 24x 12cm |
Products Brief :
L921 is applied for automatic liquid level control / pressure control and effective protection for duplex pumps of with AC220V, 50hz, single phase output power 0.37 to 4kw (0.5hp-5.5hp),direct start, including stainless steel or cast iron submersible pump,centrifugal pump, sewage pump etc.Model L921 has many operation modes by adopting different electric installations. An important feature that makes the difference between Model L921 and common On/Off pump control box is the probe / sensor free in the well. Our special design makes it a very reliable and sensitive Protection against pump dry run without installation probe / sensor in the well.
Model L921 is useful in all cases we need to control and protect single pump managing its turn-on and turn off by different electric installations.
Main Technical Specifications
■ Rated Input Voltage…………………………………………AC220V / Single Phase
■ Rated Frequency…………………………………….……50Hz-60Hz (at option)
■ Rated Output Power of Motor……………………0.37-2.2KW / 3-4KW(at option)
■ Short Circuit Trip Response Time……………………………………………0.1sec
■ Dry Running Trip Response Time……………………………………..……6sec
■ Over / Under Voltage Trip Response Time…………………………….…5sec
■ Pump Stalled Trip Response Time……………………..…………….0.5sec
■ Over Current Trip Response Time…………………………………5sec-5min
■ Recovery Time of Over / Under Voltage……………………………..……2min
■ Recovery Time of Over Current…………………………………………..…30min
■ Recovery Time of Dry Running.…………………………………..……30min
■ Over / Under Voltage Trip……..…………………………………..……±15%
■ Dry Running Trip…………………………………………………..………70%
■ Pump Stalled Trip…………………………………………………..……200%
① the Characteristic of Inverse-time, the stronger of the current, The shorter of trip response time)
② Percent of rated input voltage ( i.e if the rated input voltage is 220V, the Over voltage trip is
253V, the Under voltage trip is 187V)
③ Percent of load time of calibration ( i.e if the running ampere of pump motor is 6A during the
calibration, the dry running trip ampere is 4.2A)
④ Percent of load time of calibration ( i.e if the running ampere of pump motor is 6A during the calibration, The pump stalled trip ampere is 12A)
Model | L921 |
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) |
Capacitor: | Reserved space for installing start capacitor |
Protection Offered: | Over load protection Pump stalled protection Dry run protection with sensor free Under voltage protection Over voltage protection |
Application & Control characteristic | Control and protect universal pump Using water level sensor or float switch 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 | Push button calibration Memory function when power off & recovery Interactive LCD Screen
|
Working temperature Working humidity Degree of protection Install position Unit dimension (L x W x H) | -25℃-- +55℃ 20%--90%RH, no drips concreted IP54 Wall mounting 30.2 x 24x 12cm |
Our Team Introduction
Leading company has three major departments:
1. Sales Team
2. R&D Team
3. Production Team
Factory Introduction
With international advanced production equipment, strictly in accordance with international standards to organize production, and continuous R & D investment and quality control, now we have a complete set manufacturing core technology for electrical circuit control & protection.
Tag: single phase pump controller, single phase submersible pump control panel
In order to continue to enhance our Sensitive & Precise Pump Control Panel Single Phase M8 and provide more sophisticated features and performance, we actively introduce and learn from advanced technologies. As we are moving forward, we keep an eye on our ever-expanding product range and make improvement to our services. We have put great efforts to improve the after-sales service system, and strived to provide users with rapid and effective technical responses in the shortest time.
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