20 Amp Arc Fault Breaker

Product Overview
Product Details
Data Download
Related Products

20 Amp Arc Fault Breaker

Picture

20 Amp Arc Fault Breaker

The AFDD Arc Fault Detection Device is a critical safety solution engineered to mitigate electrical fire risks in residential, commercial, and industrial environments. By combining arc fault detection, residual current protection, and overload/short circuit safeguards, it offers comprehensive defense against common electrical hazards. With four adjustable sensitivity modes, it adapts to diverse settings—from homes to factories—while intuitive indicators and a test button ensure ease of monitoring and maintenance. Its modular DIN rail design simplifies installation, making it an essential upgrade for modern electrical systems.

Product Details

AFDD (Arc Fault Detection Devices) is an advanced electrical fire protection device designed to prevent fires caused by arc faults, short circuits, wire aging, overloads, poor contacts, or electrical equipment failures. Equipped with a built-in computer chip, it real-time monitors and analyzes arc pulses, triggering a trip signal to cut off power when hazardous arcs are detected. Ideal for residential, commercial, and industrial settings, it provides multi-layered protection including residual current, overload, short circuit, and arc fault (series, parallel, ground) protection.

Core Features

Multi-Protection Functions:

Arc fault detection (series, parallel, ground arcs)
Residual current protection (IΔn = 0.03A)
Overload (long/short delay) and instantaneous trip protection.

4 Working Modes (Adjustable via concealed Setting Button):

1 flash: Interference-resistant mode (low sensitivity, for high-interference environments like industrial machinery).
2 flashes: Strict mode (general factories, complex power systems).
3 flashes: Normal mode (residential, offices, dormitories).
4 flashes: Sensitive mode (long lines with minimal grid interference).

User-Friendly Design:

Reset Button: Manual reset after arc interruption.
Indicator Lights: Green (normal operation), Red (fault alarm, flashing post-trip).
Test Button: Short-press to simulate arc trips for functionality checks.

Technical Specifications

Rated Voltage: 230V~
Rated Current (In): 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Poles: 2P+N, 2P
Short Circuit Capacity: 6000A
Operating Temperature: -25°C ~ +40°C
Protection Degree: IP20
Mechanical/Electrical Life: 20,000 / 10,000 operations

Technical data

Item	Parameter	Data
Electricalfeatures	Rated voltage Ue （V）	230V~
	Rated current In (A)	6A,10A,16A,20A,25A, 32A,40A,50A,63A
	Rated sensitivity I ∆ n(A)	0.03A
	Poles	2P+N、2P
	Wave form of the earth leakage sensed	AC
	Thermo-magnetic release characteristic	C（5-10In）
	Rated short circuit capacity Icn (A)	6000
	Rated residual making and breaking capacity I ∆ m (A)	500A(In ≤ 50A),630A(In ≤ 63A)
	Rated insulation voltage Ui (V)	500V
	Rated impulse withstand voltage Uimp (V)	4000V
	Pollution degree	2
Mechanicalfeatures	Electrical life	10000
	Mechanical life	20000
	Protection degree	IP20
	Ambient temperature (℃ )	-25~+40
	Storage temperature (℃ )	-25~+70
Installation	Tightening torque (N.m)	2
	Terminal size for cable (mm)	16
	Installation category	Ⅱ

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 2 below.

Technical data

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		Maximumtripping 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 send stripping 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.The time limit for tripping of AFDD-63 with rated voltage 230V are shown in Table 3 and Table 4.

Limit value for tripping of AFDD under small arc current below 63A

Arc current of test（the effective value）	3A	6A	13A	20A	40A	63A
Maximum tripping time	1s	0.5s	0.25s	0.15s	0.12s	0.12s

Limit value for tripping of AFDD under large arc current above 63A

Arc current of test（the effective value）	75A	100A	150A	200A	300A	500A
N	12	10	8	8	8	8

Over current protection characteristics (reference temperature 30℃ )

Type	In(A)	Tripping time	Expected result
B,C,D	1.13In	t ≤ 1h(In ≤ 63A)	Not tripping
B,C,D	1.13In	t ≤ 2h(In>63A)	Not tripping
B,C,D	1.45In	t<1h(In ≤ 63A)	Tripping
B,C,D	1.45In	t<2h(In>63A)	Tripping
B,C,D	2.55In	1s<t<60s(In ≤ 32A)	Tripping
B,C,D	2.55In	1s<t<120s(In>32A)	Tripping