China VFD and VSD manufacturer for industrial partners

VFDs and variable speed drives for OEMs, distributors and industrial projects

Harristian is a China VFD manufacturer and variable speed drive manufacturer supplying factory-direct 220V and 380V drives with OEM customization, technical support and stable production capacity for global B2B customers.

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VFD product series for industrial supply

variable frequency drive hrsti 320 series (1-1).png__PID:907a511e-a868-4bae-90ad-3ccf2f4fc8d1

HRSTI 320 Series Simple General Purpose VFDs

  • Price-oriented VFDS
  • Highly competitive price advantage
  • NO RS485 communication
  • NO braking units
  • Power range:
    IN 1PH 220V, OUT 3PH 220V 0.4kw～5.5kw
    IN 3PH 220V, OUT 3PH 220V 0.4kw～5.5kw
    IN 3PH 380V, OUT 3PH 380V 0.4kw～11kw
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variable frequency drive hrsti 321 series (1-1).png__PID:1e907a51-1ea8-48bb-ae50-ad3ccf2f4fc8

HRSTI 321 Series Simple General Purpose VFDs

  • Upgraded version of the 320 Series
  • Price-oriented VFDS
  • Highly competitive price advantage
  • Equipped with RS485 communication
  • Equipped with braking units
  • Power range:
    IN 1PH 220V, OUT 3PH 220V 0.4kw～5.5kw
    IN 3PH 220V, OUT 3PH 220V 0.4kw～5.5kw
    IN 3PH 380V, OUT 3PH 380V 0.4kw～11kw
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variable frequency drive hrsti 720 series (1-1).png__PID:781e907a-511e-4868-bbae-50ad3ccf2f4f

HRSTI 720 Series High-Performance General Purpose VFDs

  • Performance-oriented VFDs
  • Highly competitive performance advantage
  • Equipped with RS485 communication
  • Equipped with braking units
  • Power range:
    IN 1PH 220V, OUT 3PH 220V 0.75kw～5.5kw
    IN 3PH 220V, OUT 3PH 220V 0.75kw～55kw
    IN 3PH 380V, OUT 3PH 380V 0.75kw～630kw
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variable frequency drive hrsti 293 series (1-1).png__PID:7a511ea8-68bb-4e50-ad3c-cf2f4fc8d1e8

HRSTI 293 Series Input 1PH 220V Output 3PH 380V VFDs

  • Price-oriented VFDS
  • Highly competitive price advantage
  • Equipped with RS485 communication
  • Single-phase 220V input
  • Three-phase 380V output
  • Power range:
    0.75KW ~ 5.5KW
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About Harristian

HHaishang Electric Co., Ltd. (Brand: HRSTI, Harristian) is a trusted manufacturer based in Anhui, China, specializing in variable frequency drives (VFDs) for low-voltage industrial control.

With CE-certified products and three R&D centers, HRSTI delivers safe, reliable, and innovative solutions for commercial and industrial applications.

Palletizer Robot for vfds

Palletizer
robot

Automatic three
proof coating Line

Test and packaging
workshop

Palletizer Robot for vfds

Automatic
unpacking

Palletizer Robot for vfds

Automatic screw
machine

Our 30,000 m² facility features advanced automation across seven assembly lines, dedicated VFD production workshops, and a skilled team of over 200 employees — including Ph.D. and master’s degree holders. Over 50% of our team are experts in variable frequency drives, ensuring top-tier product quality, performance, and technical support. We are committed to offering the most professional and effective VFDs solutions in the industry.

  • Automated production

  • Three R&D centers

  • OEM customization

  • 30,000m² factory

VFD series for quotation and project selection

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Technical articles and VFD selection knowledge

  • How to Choose Between a Soft Starter and a Variable Frequency Drive?

    How to Choose Between a Soft Starter and a Vari...

    Both Variable Frequency Drives (VFDs) and soft starters can achieve energy savings, control, and equipment protection by adjusting motor operation. This article compares the working principles, functional characteristics, application requirements,...

    How to Choose Between a Soft Starter and a Vari...

    Both Variable Frequency Drives (VFDs) and soft starters can achieve energy savings, control, and equipment protection by adjusting motor operation. This article compares the working principles, functional characteristics, application requirements,...

  • Principles of Variable Frequency Drives (VFDs)

    Principles of Variable Frequency Drives (VFDs)

    Variable Frequency Drives (VFDs) are essential components in modern industrial applications due to their efficiency and precise control capabilities. This paper explores the fundamental principles of VFD operation, providing a...

    Principles of Variable Frequency Drives (VFDs)

    Variable Frequency Drives (VFDs) are essential components in modern industrial applications due to their efficiency and precise control capabilities. This paper explores the fundamental principles of VFD operation, providing a...

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