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 your company?

We have been 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.

220V-240V Single Phase Dirty Water Pump Control Box L921-S

Name: 220V-240V Single Phase Dirty Water Pump Control Box L921-S
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 733891362

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

Negotiable

10 Pieces

Product profile

Customization

Available

Task

Program

Structure

Closed-Loop

Model NO.

L921-S

Mathematical Model

Linear

Signal

Continuous

Function

Automatic Control, Protection, Monitoring

Certification

ISO: 9001, CE

Condition

New

Customized

Material

ABS

Input Voltage

AC220V-240V

Phase

Single Phase

Rated Output Power

0.37kw-2.2kw 3kw- 4kw

Frequency

50Hz/60Hz

Protection Grade

IP54

Transport Package

Box+Paper Carton

Specification

Big size

Trademark

Leading or neutral

Origin

China

HS Code

9032899090

Production Capacity

60, 000 Sets Per Month

Key features

Automatic Control & Protection: Protects sewage/drainage pumps from overload, stall, dry run, and voltage issues.

Real-Time Level Monitoring: LCD screen displays dynamic depth and pump status; supports 0.5-4.5V level transmitters.

Customized Design Available: Offers customized input voltage, power, and frequency options for specific needs.

IP54 Protection Grade: Durable ABS material with IP54 rating for wall mounting in harsh environments.

8-Year Designed Lifespan: Engineered for a long operational life of 8 years under standard conditions.

ISO 9001 & CE Certified: Manufactured following ISO standards with CE certification for quality assurance.

Fault Recording System: Records and displays the last five faults for easy troubleshooting and maintenance.

Remote Monitoring Support: Equipped with RS485 port and dry contact for remote monitoring and control.

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: ≤3.89hTerms 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:Can I get samples for testing?

Yes, we can send you samples for testing, contact us for details.

Q:What is the delivery time?

For standard pump control panel, it usually takes about 7 working days; For non-standard, it usually takes 15-20 days, please contact us for details.

Q:Do you accept OEM or ODM orders?

Yes, we have our own engineering team and we do accept OEM and ODM, but there is ordering quantity requirement.

Q:How do you ensure product quality?

Our production process follows 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.

Q:What is the approximate life time for your control panel?

The designed life time of control panel is 8 years.