
Harristian Electric Co.,ltd
Your Trusted Low-Voltage Partner for Industrial Solutions

CHINA Harristian Electric Co.,Ltd
HaiShang Electric Co., Ltd. is a high-tech enterprise specializing in the research, development, production, sales, and technical support of industrial variable frequency drives (VFDs). With leading brands such as Harristian, HRSTI, and Harstian, we are committed to delivering reliable and efficient solutions for industrial automation.
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Automated Production Line
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Product Testing Zone
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Warehouse
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Manual Assembly Line
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Manual Assembly Line
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Manual Assembly Line
Our company employs over 200 professionals, including 2 Ph.D. holders and more than 10 master’s degree engineers. Over 50% of our workforce consists of experts in VFD technology, ensuring strong capabilities in both VFDs development and technical support. We have established R&D centers in Shanghai, Shenzhen, and at our headquarters—demonstrating our continuous investment in innovation and our commitment to providing tailored, professional solutions for B2B clients worldwide.
HaiShang has built trusted partnerships with well-known enterprises across the globe. Our products are exported to over 60 countries and regions, including Europe, the Middle East, Africa, Asia, and South America.
We are ready to be your reliable VFD manufacturing partner—supporting your business with OEM services, technical expertise, and world-class production.
FAQ

1. What kind of OEM customization services do you offer?
We offer tailored OEM solutions designed to meet your specific business model, with support from our team of HRSTI professional engineers. However, please note that minimum order quantities (MOQs) apply to custom orders. For more information, please contact HRSTI professional sales team.
2. What inspection procedures do you follow?
HRSTI implements a comprehensive inspection system that covers the entire production process—from raw materials to finished products. You are welcome to contact our sales team to arrange a HRSTI factory visit and see our quality control processes in person.
3. What are your accepted payment terms?
We accept T/T (bank transfer) payments. Choose the option that suits your business needs best.
4. What services does HRSTI provide?
HRSTI offers full-spectrum support with a professional R&D team capable of custom mold design to meet various customer requirements. Our dedicated sales team provides exceptional pre-sales and after-sales support to ensure a smooth experience.
5. How can I become a HRSTI agent?
We evaluate potential agents based on sales performance and market research. If you’re interested in becoming our partner, we’re happy to discuss the possibilities in more detail.
6. How can I get a quote?
Please contact us with the required specifications, quantity, and any other relevant details. Our team will respond promptly once we receive your inquiry.

CONTACT US
At Harristian Electric Co., Ltd., we specialize in providing high-quality OEM solutions for HRSTI products, fully customizable to meet your brand’s unique needs. Our team is committed to delivering tailored products and reliable 24/7 after-sales support. If you’re looking for a trusted partner to enhance your product offering, feel free to get in touch with us today.
Featured VFDs Series
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HRSTI 293 Series Input 1PH 220V Output 3PH 380V VFDs
Vendor:HarristianRegular price $999.00Regular priceUnit price / per -
HRSTI 720 Series High-Performance General Purpose VFDs
Vendor:HarristianRegular price $9,999.00Regular priceUnit price / per -
HRSTI 321 Series Simple General Purpose VFDs
Vendor:HarristianRegular price $999.00Regular priceUnit price / per -
HRSTI 320 Series Simple General Purpose VFDs
Vendor:HarristianRegular price $999.00Regular priceUnit price / per
Harristian Academic
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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...