L522 Intelligent Water Pump Control Box with Air Switch for Deep Well Pump

• Task: Program
• Structure: Closed-Loop
• Mathematical Model: Non-Linear
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: L522
• Signal: Continuous
• Function: Automatic Control
• Certification: CE
• Condition: New
• Customized: Customized
• Material: ABS
• Qty of Controlled Pump: Duplex Pump
• Rated Input Voltage: AC220V/AC230V Single Phase
• Rated Output Power: 0.37kw-2.2kw (0.5HP-3HP) 3-4kw(4HP-5.5HP)
• Start Type: Dol(Direct on Line)
• Transport Package: Paper Carton
• Specification: 6 pcs/carton
• Trademark: Neutral
• Origin: China
• HS Code: 9032899090
• Production Capacity: 100000PCS/Year
• Package Size: 32.00cm * 26.00cm * 15.00cm
• Package Gross Weight: 4.500kg

Product Description

Duplex Pump Control Panel L522




Application: Control&Protect Single phase Pump, DOL

Model L 522 is useful in all cases we need to control and protect duplex pump managing its turn-on and turn-off by different electric installations.

Our special design makes it a very reliable and sensitive protection against pump dry running without installation of any probe/sensor in the deep well.

Main Spec:
Rated Inupt Voltage: AC 220V/50HZ, Three Phase
Rated Output Power: 0.75w-2.2kw/3kw-4kw
Built in Function Switch:
Applied For Water Supply By Liquid Level Control or Booster
Applied For Drainage By Liquid Level Control

Main features:
-Auto/Manual Switch
-Double pumps control
Main Pump/Standby Pump Automatically Alternate
Main Pumps/Standby Pump Automatically Switch Against Malfunctions
Standby Pump Participate Running if Required.
-Starts and stops the pump in accordance with the different liquid level or pressure setting.
-Push Button Calibration
-Automaticlly stop the pump in the case of water shortage, protecting it from drying running without installing the float switch or liquid probe in the well.
-Pump accumulative running time displaying.
-Pump last five fault record displaying.
-LCD displays pump running information.
-Protect the pump against Over /Under Voltage; Open Phase; Over Current; Pump Shaft Rust; Rapid Cycle.
-Grade of Protection IP 54

NO.2 About us

1)Company Information 
     Brief Introduction
Since 2001, Leading Science & Technology company has been providing pump control and protection solutions to pump users.
Today Leading Science & Technology offers a wide range of pump control panel & pump control accessories for the pump control and protection market.

Our products: Intelligent Pump Controller, Sewage Pump Controller, Booster Pump Controller, Deep Well Pump Control Box, Submersible Pump Controller, Pump Motor Starter,Programmable Logic Controller, IOT Pump Controller, Reverse Osmosis Controller.

For more information, please visit:    pumpcontroller.en.made-in-china.com 

    Our office & Team

Leading company has three major departments:
1. Sales Team
2. R&D Team
3. Production Team
Sales team collect the information and technical requirements from pump manufacturers, pump distributors, pump users etc and report to our R&D team. According to the information, R&D team will evaluate firstly and start to research,develop and test the pump controller. Finally once the pump controller is workable, our production team will produce.

With our team members' close cooperation, Leading company has been developing many unique control and protection technology for pump industry.

2)Our trading fair&Communication&Feedback
 

NO.3 Our production capacity

N0.4 FAQ       
Can i have some samples ?
Yes ,we can send you samples for testing,contact us for details 
What's delivery time ?
For standard pump control panel ,it usually takes about 7 working days;
For non-standard,it usually takes 15-20days ,please contact us for details;
Can I do OEM or ODM ?
Yes,we have our own engineering team and we do accept OEM and ODM,but there is ordering quantity requirement;
How does your factory do the quality control ?
Our production process follow up the ISO standard and we control the product quality from the raw materials to the finished product,each of our control panel will be fully assembled and strictly tested before packing and shipping ;
What is the approximate life time for your control panel ?
The designed life time of control panel is 8 years ;
What is your after sales service policy ?
According to the ordering quantity,we will give some free spare parts or controller for maintenance or replacement and we will give technical training;
How can i trust you ?
We have being developing the pump control panel manufacturing and selling for 15 years ,now many pump supplier from China and overseas are using our controller to control and protect their pump and motor.
Where is your location and transportation guide?
From Guangzhou to Changsha takes 1hour by air, 2.5hour by high speed train
From Shanghai to Changsha takes 1.5hour by air, 5hour by high speed train
From Beijing to Changsha takes 2.5hour by air
From Hong Kong to Changsha takes 2hour by air