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.

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.

3-4kw Single Phase Waste Water Pump Control Panel L921-S

Name: 3-4kw Single Phase Waste Water Pump Control Panel L921-S
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 733891532

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

Customized Design: Product is fully customized to meet specific requirements.

ISO 9001 & CE Certified: Meets international quality and safety standards.

IP54 Protection Grade: Dust and water resistant for reliable operation.

8 Years Design Life: Engineered for long-term durability and performance.

LCD Real-time Monitoring: Displays dynamic depth and pump status on screen.

RS485 Communication: Enables remote monitoring and data transmission.

Multiple Protection Functions: Includes overload, stall, dry run, and voltage protection.

OEM & ODM Support: Accepts custom orders with engineering team support.

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: ≤5.76hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR

AI-Powered supplier vetting

SummaryThe supplier, Hunan Leading Technology Development Co., Ltd, specializes in intelligent pump control solutions with a strong focus on research and development. They have significant experience in exporting, though they do not have SDK availability or overseas branches. Their customization capability is robust, offering various customization levels. However, there is no evidence of a valid manufacturing capacity contract or participation in trade shows. They maintain good quality control and after-sales service procedures.

Supplier typeThe supplier is a combined company named Hunan Leading Technology Development Co., Ltd, focusing on intelligent pump control and protection solutions.

After-Sales capabilityThe supplier has clear procedures for corrective actions and customer complaints, indicating a structured after-sales service capability.

Production capacityThe supplier does not have a valid contract for manufacturing capacity and lacks overseas showrooms and warehouses.

Customization capabilityThe supplier provides extensive customization options, including full and minor customization from samples and designs.

Product Q&A

Q:Can I have some samples?

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

Q:What's 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: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.

Q: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.

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

The designed life time of control panel is 8 years.