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Frequency Inverter Frequency Converter Driver 75kw VFD VSD
US$99.00-6,360.00
1 Piece

Product profile

Customization

Available

Application

General Transducer

Output Type

Triple

Model NO.

EM303B

Principle of Work

Vector Control Transducer

Switch Mode

PWM Control

Main Circuit Type

Voltage

Voltage of Power Supply

Medium Voltage Variable-Frequency Drive

Link of Transformation

AC-AC Variable-Frequency Drive

Nature of DC Power

Voltage Variable-Frequency Drive

Function

General VFD

Brand

Sinee

Control Mode

V/F, SVC0, SVC1

Input Mode

Frequency (Speed) Input, Torque Input

Frequency Control Range

0.0 - 600.00Hz

Reference Power Supply

10V/20mA

Terminal Control Power Supply

24V/150mA

Vibration

< 0.5g

Degree of Protection

IP20

Cooling Method

Forced Air Cooling

Transport Package

Wooding

Trademark

SINEE

Origin

China

Production Capacity

400000pieces/Year

Key features

Wide Speed Range: Supports 0.0-600.00Hz frequency control with 150% overload capacity at low frequency.
Fast Response: Optimized algorithms ensure acceleration/deceleration in just 0.1 seconds.
Dual CPU Stability: Dual-CPU architecture significantly improves performance and system stability.
Smart Restart: Auto-searches motor speed at restart to ensure smooth start without current overshoot.
AVR Function: Maintains stable output voltage even during grid voltage fluctuations.
Comprehensive Protection: Features short circuit, overcurrent, overload, overvoltage, and overheating protections.
Flexible Control Modes: Supports V/F, SVC0, and SVC1 modes with linear and S-curve acceleration options.

Company profile

Wuhan Sine Electric Technology Co., Ltd
High Repeat Buyers ChoiceYears of Export ExperienceR&D Capabilities
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: 14 years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤11.50h

AI-Powered supplier vetting

SummaryThe supplier is explicitly identified as a professional technical supplier serving frequency-conversion governors, servo systems, industrial automation, and energy-saving systems. It provides 3D software design and design-based customization, and reported new products during the past year. Its operating resources include 6 production lines, 150 total years of R&D engineer experience, 21–30 quality-control staff, and 10 quality-assurance/control inspectors. Service processes include documented corrective and preventive actions, complaint handling, supplier assessment, and quality assurance. The supplier has inventory capability and valid manufacturing contracts, but no overseas warehouse, showroom, agent, or branch; overseas service coverage is limited to repair in Africa and South America. Financial records are referenced for 2022–2024, but their results are not provided. No certification information or customer cases are stated.
Supplier typeThe supplier is explicitly described as a professional technical supplier. Its stated business scope covers development, production, sales, and after-sales service for frequency-conversion governors, servo systems, industrial automation products, and automation or energy-saving systems.
After-Sales capabilityThe supplier states that after-sales service is within its business scope and has documented complaint-handling and corrective/preventive-action procedures. It also has inventory capability, 6 warehousing and logistics centers, 11 technical service departments, and repair services in Africa and South America, although it has no overseas warehouse, showroom, agent, or branch.
R&D capabilityThe supplier provides 3D software design services, has customization-from-design capability, reported new products during the past year, and has 150 total years of R&D engineer experience. These facts provide explicit evidence of ongoing technical and product-development capability.
Production capacityThe supplier operates 6 production lines, has 21–30 quality-control staff and 10 quality-assurance/control inspectors, maintains inventory capability, and has valid manufacturing contracts with related subcontractors. It also reports average peak- and off-season lead times within 15 working days, supporting a demonstrated production and fulfillment capability.
Customization capabilityCustomization from designs is explicitly stated as the design service capability, and the supplier provides 3D software design services. This directly supports its ability to develop customized designs rather than only standardized products.

Product Q&A

Q:Can the inverter handle overload conditions?
A:
Yes, Model G supports 150% rated current for 1 minute, and Model P supports 120% for 1 minute.
Q:What are the available control modes?
A:
The inverter supports V/F, SVC0, and SVC1 control modes for various application needs.
Q:How fast is the acceleration and deceleration?
A:
The optimized algorithm allows the motor to accelerate or decelerate in just 0.1 seconds.
Q:Is the output voltage stable during grid fluctuations?
A:
Yes, the AVR function ensures the output voltage remains stable even if input voltage varies.
Q:What protections are included?
A:
It includes short circuit, overcurrent, overload, overvoltage, undervoltage, phase loss, and overheating protections.

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