L921 Advanced Single Phase Pump Controller with Dry Run Sensor

• Customization: Available
• Task: Program
• Structure: Closed-Loop
• Model NO.: L921
• Mathematical Model: Non-Linear
• Signal: Continuous
• Function: Automatic Control
• Certification: ISO: 9001, CE
• Condition: New
• Customized: Customized
• Material: ABS
• Transport Package: Paper Carton
• Specification: 6 pcs/carton
• Trademark: Neutral
• Origin: China
• HS Code: 9032899090
• Production Capacity: 100000PCS/Year
• Package Size: 25.00cm * 15.00cm * 8.00cm
• Package Gross Weight: 1.500kg

Product Description

Product Description

NO.1 About Product

Description
Introducing the L921 - a premium, high-quality Electric Single Pump Control Panel designed especially for Water Pump Distributors.
The L921 Pump Controller is a state-of-the-art, intelligent, single-phase fully automatic pump controller featuring a sophisticated built-in water level control.

This controller is indispensable in various water and wastewater applications, whether it be water transfer, tank filling, tank emptying, or pressure boosting in hydro-pneumatic systems. Encased in a robust ABS enclosure, it ensures weather-proof installation and supports both Auto and Manual operation modes.

Parameter form

General 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

Typical Application Example


Typical usage scenarios include
- Residential Houses
- Apartments
- Vacation Homes
- Agricultural Farms
- Water Extraction from Wells
- Greenhouse, Garden, and Agricultural Irrigation
- Rainwater Harvesting and Reuse
- Industrial Facilities
- Sewage and Wastewater Management

NO.2 About us

1)Company Information
Brief Introduction
Established in 2001, Hunan Leading Science & Technology Development Co., Ltd. has been at the forefront of providing innovative pump control and protection solutions for pump users worldwide.
Today, we at Leading Science & Technology are proud to offer an extensive range of pump control panels and accessories tailored for the dynamic pump control and protection industry.

Our cutting-edge product line includes Intelligent Pump Controllers, Sewage Pump Controllers, Booster Pump Controllers, Deep Well Pump Control Boxes, Submersible Pump Controllers, Pump Motor Starters, Programmable Logic Controllers, IoT Pump Controllers, and Reverse Osmosis Controllers.

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

Our office & Team

Our company operates with three core departments:
1. Sales Team
2. Research & Development Team
3. Production Team
The Sales team gathers detailed information and technical requirements from pump manufacturers, distributors, and users, reporting these insights to our R&D team. The R&D team then conducts thorough evaluations, designing, developing, and rigorously testing new pump controllers. Once a controller is deemed functional, our production team commences manufacturing.

Thanks to the seamless collaboration among our team members, Leading Science & Technology has pioneered numerous exclusive control and protection technologies for the pump industry.

2)Our trading fair&Communication&Feedback

NO.3 Our production capacity

We invite you to an immersive factory field trip to witness our capabilities firsthand.

N0.4 FAQ
Can I receive samples for testing purposes?
Absolutely! We offer samples for testing. Please contact us for further details.
What is the typical delivery time?
For standard pump control panels, expect delivery within approximately 7 business days.
For custom non-standard orders, the delivery time ranges from 15-20 days. Please reach out for specifics.
Is OEM or ODM service available?
Yes, we offer both OEM and ODM services thanks to our in-house engineering team, subject to minimum order quantities.
How does your factory ensure quality control?
Our meticulous production process strictly adheres to ISO standards, ensuring top-tier quality control from the selection of raw materials through to the final product. Each control panel is meticulously assembled and undergoes rigorous testing to ensure impeccable performance before packaging and shipment.
What is the estimated lifespan of your control panel?
The control panel is engineered to offer a robust lifespan of approximately 8 years.
Could you elaborate on your after-sales service policy?
Depending on the volume of your order, we offer complimentary spare parts or controllers for maintenance or replacement. Additionally, we provide comprehensive technical training to ensure seamless operation and maintenance.
How can I place my trust in your company?
With 15 years of expertise in the manufacturing and sales of pump control panels, our controllers are trusted by numerous pump suppliers both in China and internationally. They rely on our technology for the reliable control and protection of their pumps and motors.
Where is your location and transportation guide?
Traveling from Guangzhou to Changsha takes just 1 hour by air or a swift 2.5 hours via high-speed train.
From Shanghai, reach Changsha in just 1.5 hours by air or 5 hours by high-speed train.
Journey from Beijing to Changsha in 2.5 hours by air.
From Hong Kong, a quick 2-hour flight will take you to Changsha.

Send your message to this trusted supplier.