In the modern low-voltage electrical system, electrical fires caused by arc faults have become a major hidden danger to life and property safety. Afdd Arc Fault Detection Device (AFDD) emerges as a core protective device to address this risk, upgrading electrical safety from “passive protection” to “active prevention”. Zhejiang C&J Electrical co., ltd. (referred to as C&J Electrical) is committed to advanced electrical protection technology research, and its CJAF2-63 arc fault circuit breaker integrates cutting-edge Afdd Arc Fault Detection Device performance, providing reliable fire prevention guarantees for various scenarios.
Core Definition & Working Principle of AFDD
What are Arc Fault Detection Devices? AFDDs are protective devices installed in consumer units to provide protection from arc faults. They use microprocessor technology to analyse the waveform of the electricity being used to detect any unusual signatures which would signify an arc on the circuit. As a professional Afdd Arc Fault Detection Device, AFDD is different from traditional circuit breakers that only protect against short circuits and overloads. It focuses on detecting arc faults that are easy to be ignored but highly dangerous.
Arc faults are usually caused by loose wire connections, aging insulation, damaged conductors, or poor contact of electrical appliances. These faults generate high-temperature arcs (up to thousands of degrees Celsius) that can ignite surrounding flammable materials and trigger fires. The Afdd Arc Fault Detection Device monitors the electrical waveform in real time through a high-precision microprocessor. When an abnormal arc signature is detected, it can quickly trip within milliseconds to cut off the power supply, fundamentally eliminating the fire hazard caused by arcs. This active detection and rapid response capability makes AFDD an indispensable safety barrier in modern electrical systems.
Overview & Core Functions of Afdd Arc Fault Detection Device
Product Overview
Afdd Arc Fault Detection Device is an advanced intelligent electrical protection device that integrates arc fault detection, short-circuit protection, overload protection and other functions. It is widely used in low-voltage distribution systems of residential, commercial and industrial buildings. With the continuous improvement of global electrical safety standards, AFDD has been clearly required to be installed in high-risk places such as crowded areas and places with flammable materials, becoming a standard configuration for electrical safety upgrading.
Compared with traditional protective devices, Afdd Arc Fault Detection Device has the advantages of high sensitivity, intelligent identification, and comprehensive protection. It can accurately distinguish normal arcs (such as arcs generated by switches) from fault arcs, avoiding false tripping while ensuring protection effectiveness. At the same time, its modular design is convenient for installation and maintenance, and it is compatible with mainstream distribution boxes, which is suitable for both new construction projects and old building renovation.
Core Functions
- Multi-type arc fault protection: Accurately identify series arcs, parallel arcs and ground arc faults, covering all common arc fault types in circuits, and fundamentally preventing arc-induced fires.
- Comprehensive electrical protection: Integrate short-circuit instantaneous protection, overload delay protection, and over-voltage/under-voltage protection to form a multi-layered safety barrier for electrical systems.
- Intelligent waveform analysis: Adopt advanced microprocessor technology to analyse electrical waveforms in real time, with high detection accuracy and strong anti-interference ability, avoiding false tripping and missed tripping.
- Rapid response capability: Instantly trip when a fault arc is detected, with a response time far shorter than that of traditional protective devices, effectively suppressing the spread of fire hazards.
- Isolation function: After tripping, it can reliably isolate the fault circuit from the power supply, ensuring the safety of maintenance personnel and preventing fault expansion.
Application Scenarios of Afdd Arc Fault Detection Device
Due to its excellent arc fault protection capability, Afdd Arc Fault Detection Device is widely used in various scenarios with high electrical safety requirements, especially in crowded areas and places with concentrated flammable materials:
- Residential buildings: Apartments, villas and other places. It can prevent fires caused by loose socket connections, aging wires, and faulty household appliances, protecting the safety of residents’ lives and property.
- Public places: Schools, kindergartens, hospitals, nursing homes and other places with dense personnel. The high-sensitivity protection can maximize the safety of vulnerable groups such as children and the elderly.
- Commercial places: Shopping malls, hotels, restaurants, libraries and other places. It can protect the electrical circuits of lighting, air conditioning, and electrical equipment, avoiding fire accidents that affect business operations and public safety.
- Data centers: It can prevent arc faults from damaging precision equipment and causing data loss, ensuring the stable operation of the data center.
- Industrial workshops: Small and medium-sized factories and workshops. It is used to protect the electrical circuits of auxiliary equipment and lighting, avoiding fire hazards caused by complex working environments.
C&J Electrical’s CJAF2-63 AFDD: Core Advantages & Product Overview
C&J Electrical’s CJAF2-63 AFDD is a high-performance Afdd Arc Fault Detection Device equipped with cutting-edge arc fault detection technology. It integrates multiple protection functions and excellent structural design, making it an ideal solution for modern building electrical safety management. Its core advantages, application scope and technical parameters are as follows:
Core Advantages & Application Scope
- Precise arc fault identification: The most prominent feature is the ability to accurately identify series arcs, parallel arcs, and ground arc faults in circuits, promptly interrupting the circuit to prevent fire hazards caused by arcing.
- Comprehensive protection capability: In addition to core arc fault protection, it also provides short-circuit instantaneous protection, overload delay protection, and over-voltage/under-voltage protection, ensuring system stability and safety.
- Excellent performance indicators: With a rated short-circuit breaking capacity of 6kA, 2P configuration, and 230V/50Hz standard voltage, it provides multi-layered safety for low-voltage distribution systems.
- Humanized design: Modular design, easy to install and maintain; equipped with isolation function, high safety performance; strong environmental adaptability, able to work stably in various harsh conditions.
- Wide application scenarios: Specifically recommended for crowded areas or spaces with concentrated flammable materials, such as residential buildings, schools, hotels, libraries, shopping malls, and data centers where electrical safety is critical. It provides a cost-effective solution for industrial, commercial, and residential applications.
- Customizable service: Supports OEM brand customization services, which can be tailored according to customer needs to meet the personalized requirements of different market segments.
Main Technical Parameters
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Parameter
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Details
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|---|---|
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Product Model
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CJAF2-63
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Rated working voltage
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230V
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Rated current
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6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
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|
Rated frequency
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50Hz
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Tripping curve
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Type C: (5In~10In)
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Number of poles
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2P
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Rated short-circuit capacity lcn
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6KA
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Rated insulation voltage Ui
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250V (relative to ground)/500V (relative to phase)
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Rated impulse withstand voltage Uimp
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4KV
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Isolation function
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Yes
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Pollution level
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2
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Tripping form
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Thermal magnetic tripping
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Mechanical life
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20,000 times
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Electrical life
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10,000 times
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Protection level
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Installed in distribution box IP40/Directly installed IP20
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Mechanical shock resistance
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30g, 3 shocks, duration 11ms (where there is no significant shock)
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Vibration resistance
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IEC/EN 60068-2 (where there is no significant vibration)
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Why Choose C&J Electrical’s CJAF2-63 AFDD?
In the field of Afdd Arc Fault Detection Device, the CJAF2-63 AFDD from C&J Electrical has obvious competitive advantages, becoming the preferred choice for customers pursuing high safety and stable performance:
- Comprehensive protection: Integrates arc fault, short circuit, overload, over-voltage/under-voltage protection, forming an all-round safety defense line for electrical systems.
- Reliable performance: Strict quality control and excellent technical parameters ensure stable operation in various environments, with high shock and vibration resistance.
- Wide adaptability: Covers multiple rated current specifications, suitable for industrial, commercial and residential applications, and compatible with mainstream distribution boxes.
- Cost-effective solution: Integrates multiple functions, saves installation space and configuration costs, and provides high-quality protection at a reasonable cost.
- Professional customization & support: Provides OEM brand customization services; C&J Electrical has a professional technical team that can provide customers with tailored Afdd Arc Fault Detection Device solutions and comprehensive after-sales services.
Get in Touch
If you have any questions about the CJAF2-63 AFDD (Afdd Arc Fault Detection Device), such as product specifications, technical details, customization needs, or bulk orders, please feel free to contact C&J Electrical. Our professional team will provide you with high-quality electrical safety protection services and reliable solutions to ensure the safe and stable operation of your electrical system.
Post time: Jan-21-2026