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LC640 Economical Variable Frequency Drive for 220V and 380V AC Motors
Motors And Drives

LC640 Economical Variable Frequency Drive for 220 | RFQ Sourcing Details

Motors And Drives · Quote on request

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Product specs

CategoryMotors and Drives
Unitset
SeriesLC640
CoolingFan c ed
LanguagesChinese and English
Drive typeLow-voltage AC variable frequency drive
Efficiency97%-99%
Main circuitAC-DC-AC
CategoryMotors And Drives
AvailabilityInquiry required
Source date2026-07-20

Buyer's Digest

Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Motors And Drives. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.

Original product description

The LC640 is a compact, economical variable frequency drive designed for AC motor speed and frequency control. It uses an AC-DC-AC main circuit, PWM switching, and V/F control.

The listed range includes 220 V single-phase-input models with three-phase 220 V output and 380 V three-phase-input models with three-phase 380 V output. Available power ranges are 0.4-4 kW for the 220 V series and 0.75-15 kW for the 380 V series.

Listed operating specifications include a 0-500 Hz frequency range, IP20 protection class, fan cooling, 97%-99% efficiency, and an operating temperature range of -10°C to 40°C. Chinese and English language support is stated. The drive includes a built-in PID controller and RS485 communication.

Modbus is listed, while additional communication protocols are described as optional. The stated protective functions include overcurrent, overvoltage, undervoltage, module fault, electronic thermal relay, overheating, short circuit, and internal memory fault protection.

The series is presented for motors, pumps, compressors, and industrial equipment, with constant-pressure water-supply functionality identified for pump applications. Listed 220 V models include 0.75, 1.5, and 2.2 kW variants with rated output currents of 4, 7, and 9.6 A.

Listed 380 V models cover 0.75, 1.5, 2.2, 4, 5.5, 7.5, 11, and 15 kW, with rated output currents from 2.1 to 32 A. Buyers should match the selected drive to the motor nameplate and load rather than choosing by power rating alone.

Before procurement, confirm the required input phase and voltage, output voltage, motor rated current, motor power, load type, acceleration and deceleration requirements, enclosure environment, braking needs, and control method.

Also verify whether the required communication protocol is included in the selected configuration, whether external components are necessary, and which OEM or ODM options apply to the order.

LC640 | Applications and Buyer Notes

LC640 is organized as a sourcing-ready Motors And Drives reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time questions

Applications

  • Initial shortlist building for related product or supplier options.
  • Specification and application fit review before bulk purchasing.
  • Category, keyword and detail-page comparison before sending an RFQ.

Key specifications

Category
Motors and DrivesBased on visible page data; confirm exact value in the RFQ.
Unit
setBased on visible page data; confirm exact value in the RFQ.
Series
LC640Based on visible page data; confirm exact value in the RFQ.
Cooling
Fan c edBased on visible page data; confirm exact value in the RFQ.
Languages
Chinese and EnglishBased on visible page data; confirm exact value in the RFQ.
Drive type
Low-voltage AC variable frequency driveBased on visible page data; confirm exact value in the RFQ.
Efficiency
97%-99%Based on visible page data; confirm exact value in the RFQ.
Main circuit
AC-DC-ACBased on visible page data; confirm exact value in the RFQ.

Buyer tips

  • State quantity range and split-delivery needs before price comparison.
  • Add certification, material or inspection standards when they affect acceptance.
  • For time-sensitive projects, include target arrival date and destination.
  • For special applications, describe operating condition, installation environment and duty cycle.

FAQ

What should buyers confirm first?

Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.

Can buyers inquire when specs are incomplete?

Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.

How should this listing be evaluated?

Check title, category, specifications and related keywords against the actual sourcing requirement.

Source mix: ugc

Key specifications

CategoryMotors and Drives
Unitset
SeriesLC640
CoolingFan c ed
LanguagesChinese and English
Drive typeLow-voltage AC variable frequency drive
Efficiency97%-99%
Main circuitAC-DC-AC
CommunicationRS485;Modbus listed;other protocols optional
CustomizationOEM/ODM available for logo, label, mold, and other options
Output frequency0-500 Hz
Protection classIP20
220 V configurationSingle-phase 220 V input ±15%;three-phase 220 V output
380 V configurationThree-phase 380 V input ±15%;three-phase 380 V output ±15%
Protection functionsOvercurrent, overvoltage, undervoltage, module fault, electronic thermal relay, overheating, short circuit, and internal memory fault protection
Control and switchingV/F control;PWM switching
Operating temperature10°C to 40°C
Applicable power range220 V series: 0.4-4 kW;380 V series: 0.75-15 kW

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