Wall Mounted 50A Active Harmonic Filter AHF Compact Unit 380V 3P4W Energy Saving Harmonic Suppressor

Basic Properties

Place of Origin:Shanghai, China
Brand Name:NengDu
Certification:CE, ISO 9001:2015
Model Number:ND-APF-50-WM

Trading Properties

Minimum Order Quantity:1 Set
Price:USD 600-6000 / Set
Standard Packaging:Export wooden case with foam shock-proof protection
Delivery Time:7-15 days for standard orders
Payment Terms:T/T, L/C, Western Union
Supply Ability:500 Sets per Month
Specifications
Model: ND-APF-50-WM Type: Active Harmonic Filter AHF (壁挂式大电流)
Rated Current: 50A Rated Voltage: 380V AC (3P4W)
Wiring System: Three-phase Four-wire System Frequency: 50/60Hz
Harmonic Compensation Range: 2nd To 50th Order Filtering Performance: THDi < 5%
Response Time: < 10ms Overload Capacity: 110% Continuous, 120% 1min
Efficiency: >= 97% Protection Degree: IP20
Display: 7 Inch LCD Touch Screen Communication: RS485 / Modbus-RTU
Parallel Expansion: Up To 8 Units In Parallel Noise Level: No More Than 50dB
Operating Temperature: -10 Deg C To +45 Deg C Dimensions (W X D X H): 600 X 280 X 900mm
Weight: 45kg
Highlight

50A Wall Mounted AHF

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380V Energy Saving Filter

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Compact Active Harmonic Filter

Product Description
Wall Mounted 50A Active Harmonic Filter AHF Compact Unit 380V 3P4W Energy Saving Harmonic Suppressor
The ND-APF-50-WM is a 50A wall-mounted compact unit developed by Shanghai NengDu for low voltage power quality correction. As a true Active Harmonic Filter AHF, it detects harmonic currents in real time and injects equal and opposite compensation currents into the network, canceling harmonics at the source. This Active Harmonic Filter AHF eliminates harmonic oscillations, reduces electricity costs and protects transformers, cables, capacitors and motors from overheating and premature failure.
Product Overview
The ND-APF-50-WM Active Harmonic Filter AHF is a multifunctional solution based on a high-speed DSP controller and IGBT power stage. It can be easily customized to provide power factor improvement, voltage change control, flicker mitigation and load balancing functions, greatly improving the power quality in the network while reducing harmonic pollution.
This wall-mounted Active Harmonic Filter AHF unit brings 50A of compensation capacity into a space-saving enclosure that installs beside the distribution board. It targets commercial buildings and small factories that want the energy-saving and equipment-protection benefits of active filtering without occupying floor area.
Every Active Harmonic Filter AHF unit is factory calibrated and fully tested before delivery. The user-friendly touch screen displays real-time harmonic spectra, compensation current, system voltage and fault records, while the RS485 interface allows remote monitoring and integration with plant power management systems.
Key Features
  • Precise harmonic filtering: Effectively eliminates 2nd to 50th order harmonics with high accuracy, keeping THDi below 5% even under rapidly changing loads
  • Fast response and dynamic compensation: Real-time current detection with a response time of less than 10ms ensures instant reaction to load changes
  • Multi-function integration: Simultaneously compensates harmonics, reactive power and three-phase unbalance, improving overall power quality
  • High safety and stability: Active injection technology creates zero resonance risk with the power system
  • Compact size and flexible installation: Small footprint and flexible mounting options suitable for limited spaces and retrofit projects
  • Strong adaptability: Automatic adjustment under varying load conditions keeps filtering performance stable from light load to full load
  • Energy saving and equipment protection: Reduces power loss in transformers, cables and motors, extending service life of electrical equipment
  • 50A capacity in wall-mount format: Higher current capability than typical wall-mounted units while maintaining small footprint
  • Zero resonance risk: Active injection technology cannot resonate with the grid, unlike passive filter banks
Why Choose Shanghai NengDu
  • Factory direct manufacturer: Industry-trade integrated manufacturer specializing in Active Harmonic Filter AHF research, development and production
  • Strict quality control: Every unit passes 100% pre-shipment inspection including full-load harmonic filtering tests, with 36-month warranty
  • Customized solutions: R&D center tailors Active Harmonic Filter AHF solutions based on your grid parameters and harmonic mitigation requirements
  • OEM/ODM service: Custom logo, packaging and functions supported, with paid samples available
  • Factory visit welcome: Visit our factory in Shanghai to audit production line and testing facilities
Technical Specifications
Parameter Specification
Model ND-APF-50-WM
Type Active Harmonic Filter AHF (壁挂式大电流)
Rated Current 50A
Rated Voltage 380V AC (3P4W)
Wiring System Three-phase four-wire
System Frequency 50/60Hz
Harmonic Compensation Range 2nd to 50th order, selectable
Filtering Performance THDi < 5% at full compensation
Response Time Less than 10ms
Overload Capacity 110% continuous, 120% for 1 minute
Reactive Power Compensation Optional, 0 to 100% adjustable
Efficiency Greater than or equal to 97%
Cooling Method Forced air cooling with intelligent fan speed control
Protection Degree IP20
Display 7 inch LCD touch screen
Communication Interface RS485 / Modbus-RTU
Parallel Expansion Up to 8 units in parallel
Noise Level No more than 50dB
Operating Temperature -10°C to +45°C
Relative Humidity 0 to 95%, non-condensing
Dimensions (W x D x H) 600 x 280 x 900mm
Weight 45kg
Standards GB/T 14549, IEC 61000-4-30, CE
Applications
The wall-mounted Active Harmonic Filter AHF suits hotels, supermarkets, shopping malls, pumping stations, food plants and light manufacturing workshops with 380V 3P4W supplies and limited installation space.
The Active Harmonic Filter AHF supports flexible scaling: parallel modules can be added for easy capacity expansion without system restructuring, making it ideal for long-term scalability in both new projects and retrofits.
Packaging & Quality Assurance
Each unit is packed in an export-grade wooden case with foam shock-proof protection. Quality assurance includes 100% pre-shipment inspection, a 36-month warranty and lifelong technical support. Documentation such as test reports, manuals and CE certificates is provided with every shipment.
Frequently Asked Questions
Why choose NengDu Active Harmonic Filter AHF products?
Advanced production equipment, strict quality control and a professional power electronics team. Factory visits are welcome at any time.
Are you a manufacturer or a trader?
We are an industry-trade integrated manufacturer specializing in NengDu Active Harmonic Filter AHF research, development and production in Shanghai, China.
Is OEM/ODM service available?
Yes. Custom logo, packaging and functions are supported according to your requirements.
Can you provide samples?
Yes, paid samples are provided. The client covers the sample and shipping cost, and the sample fee is deductible from bulk orders.
What is the lead time?
Standard lead time is 7 to 15 days, subject to order quantity and configuration.
What is the warranty period?
100% pre-shipment inspection is performed, and a 36-month warranty is provided for the Active Harmonic Filter AHF.
Contact Details
Shanghai Nengdu New Energy Co., Ltd.

Contact Person: Mrs. Alice

Tel: +86 15000033670

Fax: 86--15000033670

Send your inquiry directly to us
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