Description

General

AFDD (Arc Fault Detection Devices) is a new type of electrical fire protection device, which can avoid the fire caused by short circuit, wire aging, heavy load, poor contact, electrical product failure and so on. AFDD built-in computer chip, real-time automatic control. Its working principle is to process, compare and identify the detected arc pulse through the electronic circuit and MCU. Once the fault arc pulse that is prone to fire is detected, a signal is output to drive the tripping device and cut off the load power supply to prevent fire. Generally, it is used in residential buildings, as the end of the protection of electrical appliances, AFDD application range is very wide, in principle as long as there is electricity, it can use AFDD to prevent electrical fire, such as residential buildings, office buildings, hospitals, shopping malls, supermarkets, factories, vehicles (cars, trains, ships, planes), etc., especially for the residential for electrical fire prevention.

Feature

1. Overload long delay protection
2. Overload short delay protection
3. Instantaneous trip protection
4. Series arc fault protection
5. Parallel arc fault protection
6. Ground arc fault protection
7. Multiple current

 

Technical data
The arc fault protection function of AFDD mainly includes the arc fault protection detection unit, the unit detects and identifies fault arcs in the line and sends tripping signals, tripping release takes off the operation mechanism of the product and makes the main contact of AFDD-63 from closed position to open position, thus disconnecting the fault line and effectively avoiding the fire caused by the arc fault.

 

Product features
AFDD-63 series Arc Fault Detection Devices includes residual current protection, fault arc protection, overload and short circuit protection. The residual current tripping characteristics of AFDD are shown in Table below.

Model	In(A)	I∆n	Time limit for tripping or not tripping
			I∆n	2I∆n	5I∆n
AFDD-63	6A,10A,16A, 20A,25A,32A, 40A,50A,63A,	>0.03	0.03	0.15		Maximum tripping time
		0.03	0.03	0.15
		<0.03	0.03	0.15	0.04

 

The arc fault protection function of AFDD mainly includes the arc fault protection detection unit, the unit detects and identifies fault arcs in the line and sends tripping signals, tripping release takes off the operation mechanism of the product and makes the main contact of AFDD-63 from closed position to open position, thus disconnecting the fault line and effectively avoiding the fire caused by the arc fault.