What voltage options do you offer?

We offer different models including 220V single-phase, 220V three-phase, and 380V three-phase inverters.

Are all products tested before shipment?

Yes. All products undergo strict quality inspection and performance testing before delivery.

Bulk Supply B Series Economic VFD Variable Speed Drive 4kw 380V

Name: Bulk Supply B Series Economic VFD Variable Speed Drive 4kw 380V
Brand: Zhejiang Rihong Inverter Co., Ltd.
SKU: 2309698025

Zhejiang, ChinaZhejiang Rihong Inverter Co., Ltd.

US$67.37

100-499 Pieces

US$64.72

500-999 Pieces

US$62.37

1,000-1,999 Pieces

US$59.57

2,000+ Pieces

Sample price:US$67.37/piece.Request sample

Product profile

Customization

Available

Application

High-performance Transducer, Three Phase Transducer

Output Type

Triple

Model NO.

CHRHB-440EE

Principle of Work

Vector Control Transducer

Switch Mode

PWM Control

Main Circuit Type

Voltage

Voltage of Power Supply

Low Voltage Variable-Frequency Drive

Link of Transformation

AC-DC-AC Variable-Frequency Drive

Nature of DC Power

Voltage Variable-Frequency Drive

Function

Simple Type

Brand

Chrh

Product Dimensions

95*212*150

Packing

10 Units Per Carton

Transport Package.

Carton/Wooden Case

Nature of DC Power

Voltage Variable-Frequency Drive

Transport Package

Carton

Specification

Three phase 4 kW

Trademark

CHRH

Origin

Wenzhou, China

Key features

Dual voltage options: Single-phase 220V (0.75-2.2kW) & Three-phase 380V full power range, fits Southeast Asia single-phase grid & global industrial 3-phase power supply.

Compact slim design, space-saving for small control cabinet & machine built-in installation.

Sensorless vector control, 180% rated torque at 1.5Hz, smooth low-speed start without jitter.

Strong overload capacity: 150% rated current for 60s, stable operation under sudden load change.

Wide voltage tolerance & built-in AVR auto voltage regulation, works well for unstable power grid.

Complete protection: over-current, over-voltage, under-voltage, overheat, short-circuit, motor overload etc.

Company profile

High Repeat Buyers ChoiceFast DeliveryQuality AssuranceProduct Certification

Zhejiang Rihong Inverter Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.51h

About Our Factory & Business Background

AddressNo.196, 12th Wei Road, Economic Development Industrial Zone, Yueqing City, Wenzhou, Zhejiang, China

Terms of PaymentLC, T/T, D/P

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: one month

Minimum Order Quantity100 Pieces

Supply Chain Partners50

Our Production Capability & Technical Expertise

Main ProductsVariable Frequency Drive, Variable Frequency Inverter, VFD Drive, Frequency Converter, VFD, Variable Frequency Converter, AC Driver, Soft Starter, Variable Speed Drive, VSD

Production Lines3

Production MachinesAssembly Line, Terminal Crimping Machine

QA/QC inspectors3 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers7 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Main MarketsSoutheast Asia/ Mideast, Domestic, Central Asia

Number of Foreign Trading Staff3

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Product Q&A

Q:What products does Zhejiang Rihong Inverter Co., Ltd. provide?

We specialize in Variable Frequency Drives(VFDs), AC drives, soft starters, and industrial automation control solutions for various industrial applications.

Q:What are the advantages of your products?

Our products feature stable performance, energy saving, easy operation, low noise, strong durability, and reliable protection functions for industrial equipment.

Q:Which industries are your products suitable for?

Our products are widely used in machinery manufacturing, textile equipment, water pumps, fans, packaging machines, printing machines, food machinery, and other automation industries.

Q:Do you support customized products?

Yes. Rihong supports product customization according to customer requirements, including voltage, power range, control functions, appearance, logo, and packaging customization.

Q:How can I choose the right inverter model?

Please provide motor power, voltage, current, application type, and working conditions. Our technical team will recommend the most suitable model for your needs.