What is the minimum frequency resolution?

Number setting resolution is 0.01Hz, and simulation setting is 0.025% of maximum frequency.

Jnn 250kw VFD Inverter Frequency Inverter for Cold Chain Temperature Control

Name: Jnn 250kw VFD Inverter Frequency Inverter for Cold Chain Temperature Control
Brand: Shanghai Winning Electric Co., Ltd.
SKU: 2210207935

Shanghai, ChinaShanghai Winning Electric Co., Ltd.

US$1,843.00

1-99 Pieces

US$1,755.00

100-299 Pieces

US$1,668.00

300+ Pieces

Sample price:US$1843.00/piece.Request sample

Product profile

Customization

Available

Application

Type: VFD

Output Type

Single

Model NO.

NV-250KW

Principle of Work

Vector Control Transducer

Switch Mode

PWM Control

Main Circuit Type

Voltage

Voltage of Power Supply

High Voltage Variable-Frequency Drive

Link of Transformation

AC-AC Variable-Frequency Drive

Nature of DC Power

Current Variable-Frequency Drive

Function

Simple Type, Elevator Special, Constant Torque Universal Type

Brand

Jnn

Transport Package

Cardboard Box

Specification

950*500*350mm

Trademark

JNN

Origin

China

HS Code

9032899099

Production Capacity

50000

Key features

High-Performance Vector Control: Supports open-loop SVC and closed-loop FVC for precise speed and torque control.

Built-in PID Control: Easily realizes process control closed-loop systems for complex applications.

Multi-Protocol Bus Support: Compatible with six fieldbuses including Modbus, Profibus-DP, CANopen, and EtherCAT.

Comprehensive Protection Functions: Includes over-current, over-voltage, under-voltage, overload, and short-circuit protection.

Customization Services: OEM and ODM customized services available to meet specific client needs.

Fast Delivery Capability: High production capacity with a delivery rate of 10,000 pieces per month.

Multi-Motor Switching: Supports two sets of motor parameters for switching control between two motors.

Timing Control Function: Allows setting a time range from 0.0 minutes to 6500.0 minutes for automated operations.

Company profile

Shanghai Winning Electric Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-08-01 CertifiedNearest Port: Ningbo PortAverage Response Time: ≤3.68h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanghai Winning Electric Co., Ltd. is a China-based limited company focused on intelligent water-pump and motor-control products. The supplier describes capabilities in product design, R&D, system integration, automation implementation, and production, with applications in municipal water supply, drainage, industrial control, agricultural irrigation, and aquaculture. It reports eight production lines, export activity to Africa, Southeast Asia/Middle East, and Australia, and approximately one-month order fulfillment in both peak and off-peak periods. Evidence supports product specialization and some engineering capability, but certification details, after-sales resources, financial credibility, customization results, and specific customer cases remain insufficiently documented. The supplied data also contains inconsistencies, including differing establishment/manufacturer-start dates, employee and quality-control counts, and company-location information.

Supplier typeThe supplier is identified as a Chinese limited company and is described as both a manufacturer and R&D company specializing in motor and pump-control products. Its stated departments include production, technology, engineering, and business functions, indicating an integrated manufacturing and engineering profile.

R&D capabilityThe supplier states that it performs system design, research and development, product development, and integration for intelligent pump and motor-control products, and reports two years of total R&D-engineer experience. These statements support an innovation function, but the limited disclosed R&D experience and absence of patents, new-product records, or technical outcomes prevent a stronger assessment.

Production capacityThe supplier describes production capabilities and reports eight production lines, with products covering pump controllers, protectors, and related control equipment. It also states approximately one-month fulfillment in both peak and off-peak seasons, although the reported employee and quality-control figures are internally inconsistent and production capacity metrics are limited.

Customization capabilityThe supplier explicitly offers product design, development, system integration, and automation-project implementation, including intelligent controllers for pumps, air energy, geothermal, and boilers. This supports potential customization and engineering adaptation, but no specific customized project, technical specification, or delivery example is supplied.