How AFDD+ is the innovative solution to reduce the risk of Electrically Ignited Fires

How AFDD+ is the innovative solution to reduce the risk of Electrically Ignited Fires
Photo Copyrighted: Eaton

According to India Risk Survey (IRS) report, more than 700 cases register on fire outbreaks in 2019, out of which more than 80 per cent of the cases are due to electric short circuits. It is a risk for people and property and harmful for the business flow and operation.

The initial stage before the fire outbreak is the generation of ARC in the circuits, which goes unnoticed because the protection devices installed/available are not designed to capture these ARCs coming in the circuits.

Here, a product can detect the ARCs and prevent major electric failure, leading to fire, especially in the single-stage application that is AFFD+.


AFDD+ stands for Arc Fault Detection Device, offers a comprehensive protective solution against fires triggered by arc faults. It significantly enhances your safety concerning electrical fires in your home. The device detects arc faults and automatically trips to help prevent electrical fires through continuous electronic cable monitoring.


Arc formed is always persistent, and it induces change voltage pattern, current pattern and thermal effect in the wire/cable. When an arc fault occurs, it has unique and readily identifiable characteristics, i.e.,

  • High-frequency disturbances within the fault current
  • A breakdown of the fault current, close to the zero-crossing of the driving voltage

AFDD+ applies an algorithm with its embedded integrated electronic circuit and uses these changes in electrical characteristics to ensure sensitive detection of arc fault currents, combined with avoidance of unnecessary tripping.

Eaton’s AFDD+ is the industry’s first protection device that provides a combination of three levels of protection, i.e., (MCB+RCD+AFDD) without compromising basic protections.

image 1


  • Three-in-one protection
  • The broadest range for selection
  • Clear identification of all faults
  • Provides the last fault history
  • Avoid Irritant tripping
  • Cross talk test
  • Clear differentiation between arc & spark

Power line communication can cause intense signals that mask the disturbances generated by arc faults. The EATON AFDD+ has been developed to ensure this does not interfere with its detection capability. AFDD+ is also tested with the Cross Talk Test, which is conducted according to International Electrotechnical Commission (IEC) 62606:2013. This test is performed by a disturbance caused by electromagnetic interference, along with a circuit or a cable pair. A telecommunication signal disrupts a signal in an adjacent circuit and can cause the indications to become confused and cross over each other. Therefore, only the right AFDD shall trip (not the neighbouring devices).


Rating: 10A to 40A


B & C Curve

Pole: 2P

Breaking capacity: 10kA up to 25A and 6kA for 32A, 40A

Sensitivity: 10mA (10A-25A) and 30mA

Type: A and AC

AFDD+ is an all-in-one device that indicates all the faults and gives the last fault history.

image 2
image 3

Green, no arc fault occurred
1x yellow, serial arc fault
2x yellow, serial arc fault of dimmed load
3x yellow, parallel arc fault
4x yellow, overload > 270V
5x yellow, over-temperature in device >115°C
6x yellow, device failure, testing required

Suppose you want complete protection against electrical hazards. In that case, you should have selected the right product which offers protection from essential to advance security & AFDD+ ensure the continuity of the system with utmost safety. Moreover, it conveniently removes the need for three separate protective devices. As a result, it gives electricians a more efficient tool for ensuring customer safety, putting at their disposal a state-of-the-art arc fault detection device that also complies fully with all applicable standards.

About Eaton

Eaton’s mission is to improve the quality of life and the environment through the use of power management technologies and services. We provide sustainable solutions that help our customers effectively manage electrical, hydraulic, and mechanical power – more safely, more efficiently, and more reliably. Eaton’s 2020 revenues were $17.9 billion, and we sell products to customers in more than 175 countries. We have approximately 85,000 employees.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.