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Active Power Filter APF / AHF
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FSNOAH series active power filters are harmonic compensation device in parallel . It monitors the load current in real time with an external current transformer, and the internal DSP calculates the harmonics of the load current and sends the control signal to the inverter. The control inverter generates a harmonic current injected into the grid, which is equal to the harmonic current of the load and opposite direction, and realizes the active filtering function.

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Product Detail
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product information

Our Active power filer(APF), also known as Activie harmonic filter(AHF), can effectively lower the harmonic current of the grid so as to improve the power quality. Our regular capacities for APF are 50A, 75A, 100A, and 150A. They can be mixed and matched and installed in parallel to meet your circuit requirements.

Technical Specification

Item Description




Electrical specifications

Input line voltage 380V±20%
No. of phase 3 phase 4 wire
Frequency 50/60±5Hz
Compensation current

(per phase)

Compensate harmonic order 2nd~50th order
Power factor correction -1~+1
Current limitation Rated output current
Efficiency Up to 97.5%
CT ratio range 150:5~6000:5
Dry contacts EPO/DI/DO

Communication interface

Communication RS485

Usage areas

Indoor, without direct sunlight, no dust,

no corrosive and flammable gases,

no oil mist, no water vapor, no drip or salt etc




Environmental specifications

Working elevation Below 1000 meters. Derate when higher than 1000 meters, derate 1% for every 100 meters increase.
Storage temperature -20°C~+70°C
Working temperature -10°C~+40°C
Humidity Less than 95%RH, without water droplets condensation.
Vibration Less than 5.9 m/s2 (0.6g)


Protection grade IP20
Colour Grey
Net weight 25KG to 50KG(depend on the model)
Cooling method Intelligent air cooling

Production scene


Our APF can be widely used in automobile manufacturing, hospitals, modern buildings, theaters, photovoltaic, oil exploitation, hotels, theme parks, sewage treatment, electric vehicle charging stations, subways and other places with rectifiers, frequency converter, UPS, SCR and other harmonic sources.

Product advantages

1. Our APF has efficiency up to 97.5%
2. Up to 6 modules(maximum) in parallel operation. For your easier installation, we can install the modules in a cabinet.
3. Compensate harmonic filter order: 2nd to 50th
4. Automatic current limitation with no overload
5. Easy to choose the model, only need to measure harmonic filter current
6. Response time <10ms
7. Regular input voltage: 380V±20%. Special input voltage such as 480V, 690V and etc can be customized.
8. OEM orders, distributors and agents are welcome.

Project Cases

Our Service

● Listen carefully and clearly to customer specific requirements for products. For some customers at the beginning, they are not clear what exactly they are looking for, we will recommend the items after we learn the necessary core parameters from the client and provide them detailed parameters, pictures and other product information to ensure that products fully meet the requirements.

● Our products can be customized, and the MOQ is one unit. Please just let us know the details of the item you need.

● We have professional QC team to make 100% inspection before the delivery.

● Within the period of guarantee, if there are quality problems caused by manufacturing, we will take responsibility. If the quality problem is caused by other reasons, our company will actively assist to deal with, provide necessary technical support, solve the problem for customers, with the fastest speed to minimize the loss caused by the accident.

● Assist customers to install and debug major equipment and provide on-site technical services, send personnel to the site if necessary, until the equipment is put into operation safely.

● Within the guarantee period stipulated in the contract, if the product is damaged or faulty due to defects in design, manufacturing or materials, our company guarantees to provide timely solutions to customers upon receipt of notice.

● Strictly fulfill the relevant terms of the contract, and constantly improve the quality of service.

High Quality

Passed ISO9001:2015, CE,TUV, type test reports, certificates of patent,etc.

Our Advantage

● We have more than 14 years transformer manufacturing and exporting experience.

● We make the transformer of high quality raw materials, and the price is reasonable.

● We have the best transformer designing, producing, selling and quality control team in a bid to offer you the best product and service.

● We accept OEM/ODM order and can customize the accurate item the customer need.

● We want to build up a long term business relationship with you, so we will try our best to make everything perfect for you.

All prototype products have to go through 4 checks in the whole process:

1. Raw material inspection

2. In processing inspection

3. Final inspection

4. Outgoing inspection


Q1. Can I use my company’s logo?

A1. Sure, we can offer OEM/ODM service.

Q2. What is the MOQ?

A2. MOQ=1 unit

Q3. What is the delivery time?

A3. It depends on the order quantity. Usually it takes about 15-20 days to make the customized item with small quantity.

Q4. What is the packing material?

A4. Plywood box.

Q5. Do you have export experience?

A5. Sure. Our main markets are South Asia, Africa, Europe, South America and etc. Welcome to be our agent in your country.

Q6. What kind of certificate do you have?

A6. We have ISO9001:2015, CE,TUV, type test reports, certificates of patent,etc.

Active Harmonic Filter, Active Power Filter, ahf active filter, HGA 5% Active Harmonic Filter

Select Amongst The Wide Range Of Active Harmonic Filter In 2022

noahelectrical.com has a large selection of Active Harmonic Filter at wholesale prices to match your power load requirements. The Active Power Filter APF / AHF is designed to provide power to all IT equipment in a data center from the available power source. It can also monitor, control, and manage the power consumption of numerous devices in a data center.

Because the equipment can handle large energy densities unaffected by high temperatures, cooling costs are decreased. It is divided into four categories, with the ahf active filter being metered, switched, monitored, or basic based on their capabilities.

Get An Ideal Active Harmonic Filter For Industrial Sites

For residential and industrial sites, Active power filter design for improving power quality from Chinese suppliers. Active harmonic filters come in various sorts based on power distribution capabilities, and depending on the type you buy; you can use them both outdoors and indoors.

Furthermore, if you need stage lighting power equipment, noahelectrical.com provides a large selection at low costs. The active HGA 5% Active Harmonic Filter is perfect for spreading light in locations such as studios, concerts, and theatrical events.

Expand Your Business With A Wholesale Active Harmonic Filter!

Noahelectrical.com also has a low-voltage distribution system that sends power to the customer's meter from the distribution transformer. Therefore, the active harmonic filter's electricity does not require any reduction because it has the ideal voltage for electrical equipment.

Noahelectrical.com’s wholesale active harmonic filter can help you equip or expand your business. Also, we can help you provide A Review of Active Power Filters In Power System Applications and to know How does an active harmonic filter or harmonic.

Send your message to us:
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  • +86 18988528466 / +86 757 82810267

  • [email protected]

  •  Fenjiangbei Road No.91 Foshan, Chancheng Guangdong China

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  • Emily Liang 10:12 AM, Today
    Please note that from the year 2020 on, our company's original logo NORYA will be changed to FSNOAH.