What happens if the power goes out?

The device has a memory function that allows it to recover settings automatically when power is restored.

What are the payment terms?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as payment terms.

What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

S521 Intelligent Pump Control System with Submersible Capabilities

Name: S521 Intelligent Pump Control System with Submersible Capabilities
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 2331440795

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

US$28.00

50-499 set

US$26.00

500+ set

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Task

Program

Structure

Closed-Loop

Model NO.

S521

Mathematical Model

Linear

Signal

Continuous

Function

Protection

Certification

ISO: 9001, CE

Condition

New

Material

ABS

Transport Package

Paper Carton

Origin

China

HS Code

9032899099

Production Capacity

10000 Sets Per Month

Key features

Comprehensive Protection Functions: Includes overload, stall, dry run, under/over voltage protection with sensor-free dry run detection.

Versatile Control Applications: Supports water supply and drainage via float switches, pressure switches, or liquid probes.

Power Failure Memory: Features memory function to recover settings automatically after power off.

Wide Voltage Compatibility: Rated input voltage AC220V-240V Single phase, 50HZ/60HZ.

Compact Wall Mounting Design: Dimensions 170x155x85mm, suitable for wall installation with IP22 protection.

ISO 9001 Certified Quality: Manufactured under ISO 9001 certification standards for reliability.

Push Button Calibration: Easy calibration interface for quick setup and adjustments.

Direct On-Line Start: Designed for direct on-line start type for single pump 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: ≤7.83hTerms 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.