
LC640 Economical Variable Frequency Drive for 220 | RFQ Sourcing Details
Motors And Drives · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
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
Product sourcing keywords
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