Could you outline your after-sales service policy?

Based on order volume, we provide complimentary spare parts or controllers for maintenance or replacement, along with comprehensive technical training.

Why should I trust your company and products?

With over 15 years of expertise in pump control panel manufacturing and sales, our controllers are trusted by numerous pump suppliers both in China and abroad to ensure optimal pump and motor protection.

Where is your location and transportation guide?

Traveling from Guangzhou to Changsha is convenient, taking only 1 hour by air or a swift 2.5 hours by high-speed train. From Shanghai to Changsha, the journey takes about 1.5 hours by air or 5 hours via high-speed train. From Beijing to Changsha, air travel takes approximately 2.5 hours. From Hong Kong to Changsha, you can fly in about 2 hours.

L522 Single Phase Duplex Pump Control Box with Smart Technology

Name: L522 Single Phase Duplex Pump Control Box with Smart Technology
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 2228970925

Hunan, ChinaHunan Leading Science & Technology Development Co., Ltd.

US$85.90

5-99 Pieces

US$79.90

100+ Pieces

Sample price:US$78.00/piece.Request sample

Product profile

Customization

Available

Task

Program

Structure

Closed-Loop

Model NO.

L522

Mathematical Model

Non-Linear

Signal

Continuous

Function

Automatic Control

Certification

Condition

New

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)

Transport Package

Paper Carton

Specification

6 pcs/carton

Trademark

Neutral

Origin

China

HS Code

9032899090

Production Capacity

100000PCS/Year

Key features

Smart Duplex Pump Control: Automatically alternates main and standby pumps to ensure continuous operation and minimize downtime.

Dry Running Protection: Protects pumps from dry running without requiring probes or sensors in deep wells.

Comprehensive Fault Diagnostics: Displays last five fault records and cumulative running time for easy maintenance.

Advanced Safety Features: Protects against over/under voltage, open phase, over current, and rapid cycling.

IP54 Protection Grade: Built to withstand diverse environments ensuring durability and safety.

Auto/Manual Operation Mode: Features a switch for effortless operation between automatic and manual modes.

LCD Display Monitoring: User-friendly LCD displays comprehensive pump running information for easy monitoring.

Customized Manufacturing: Available with customized options for specific pump control requirements.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Hunan Leading Science & Technology Development Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading Company, OtherExport Year: 2005-06-08Nearest Port: Ningbo, Shanghai, GuangzhouAverage Response Time: ≤7.20hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR

AI-Powered supplier vetting

SummaryThe supplier is identified as Hunan Leading Technology Development Co., Ltd., a professional technology provider focused since 2001 on intelligent pump controller production, R&D, global sales, and after-sales service. It provides 3D software design, ODM/OEM, and multiple customization options, supported by documented inspection, corrective-action, complaint-handling, quality-assurance, and traceability procedures. Export experience is stated at 18 years, with exports representing 21%–30% of sales, and standard peak- and off-season lead times within 15 working days. However, the supplier has no available SDK, reported no new products in the past year, lacks overseas agents, branches, warehouses, and showrooms, and has no valid manufacturing-capacity contract with its factory and related subcontractors. Evidence is insufficient for certification holding, financial credibility, and customer cases.

Supplier typeThe supplier is Hunan Leading Technology Development Co., Ltd., described as a professional technology supplier focused on pump control and protection solutions, including production, R&D, global sales, and after-sales service. Its company type is recorded as “Combined,” but the exact legal classification is not further explained.

After-Sales capabilityThe company states that it provides after-sales service, maintains in-stock service capacity, and has documented procedures and records for complaint handling, corrective and preventive actions, quality assurance, and traceability. However, it has no overseas agents or branches, no overseas warehouse, no overseas showroom, and reports zero countries with overseas services, limiting demonstrated international after-sales coverage.

R&D capabilityThe supplier is identified as a professional R&D technology supplier and provides 3D software design and ODM services. Nevertheless, it has no available SDK and reported no new products during the past year, so the evidence supports design and development capability but indicates limited recent product innovation.

Production capacityThe supplier reports production operations, documented finished-product inspection procedures, in-stock capability, 18 years of export experience, and lead times within 15 working days in both peak and off seasons. A material control weakness is that the factory and related subcontractors have no valid manufacturing-capacity contract; overseas warehousing is also unavailable.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design and ODM services. It also reports OEM capability for well-known brands, providing direct evidence of broad customization and design-manufacturing support.

Client casesThe supplier states that it provides OEM services for popular brands, which indicates experience serving recognized-brand customers. No specific customer names, projects, products, or verifiable case details are provided, so the depth and quality of customer cases cannot be fully assessed.

Product Q&A

Q:Is it possible to receive some product samples?

Absolutely! We are more than happy to provide you with samples for thorough testing. Please reach out to us for further details.

Q:What is the expected delivery time for your products?

For our standard Single Phase Duplex Pump Control Box, the usual delivery time is approximately 7 working days. For custom or non-standard orders, the delivery period typically ranges between 15 to 20 days. We encourage you to contact us for comprehensive information.

Q:Is it possible to customize with OEM or ODM services?

Certainly! We boast a dedicated engineering team and are fully equipped to accommodate OEM and ODM requests, provided a minimum order quantity is met.

Q:How does your factory ensure quality control?

Our production adheres strictly to ISO standards, ensuring quality from raw materials to the finished product. Each control panel is rigorously assembled and tested before packaging and shipment.

Q:What is the estimated lifespan of your control panels?

Our control panels are designed with an impressive lifespan of approximately 8 years.