AFDD Arc Fault Detection Device Circuit Breaker

Product Overview

AFDD arc fault protection circuit breaker is a low-voltage protection device designed for arc fault detection and protection in electrical distribution systems.

The product integrates arc fault protection, short-circuit protection, and overload protection functions. It can detect abnormal arc faults in circuits and disconnect the faulty circuit in time, improving electrical system safety.

The device is suitable for AC 50Hz low-voltage distribution environments with a rated operating voltage of 230V. It adopts a compact 1P+N design and supports multiple rated current options including 6A, 10A, 16A, and 20A.

Main Functions

• Arc fault protection
• Short-circuit protection
• Overload protection

Product Features

• Integrated arc fault detection function
• Multiple electrical protection functions
• Compact 1P+N structure design
• Supports C-type trip characteristics
• Rated short-circuit breaking capacity up to 6kA
• DIN rail mounting installation
• Compatible with electrical and mechanical accessories

Applications

Suitable for:

• Residential distribution systems
• Commercial building power distribution
• Low-voltage terminal protection
• Locations with high electrical safety requirements

Technical Parameters

Parameter	Value	Unit
Product Model	AFDD	-
Product Type	Arc Fault Detection Device Circuit Breaker	-
Standards Compliance	GB/T 31143	-
Certification	CQC, RoHS	-
Protection Functions	Arc fault protection, short-circuit protection, overload protection	-
Rated Operating Voltage	230	V AC
Rated Frequency	50	Hz
Rated Current	6, 10, 16, 20	A
Number of Poles	1P+N	-
Trip Curve	C Type (5In~10In)	-
Rated Short-Circuit Breaking Capacity (Icn)	6	kA
Rated Insulation Voltage (Ui)	250 (phase to earth) / 500 (phase to phase)	V
Rated Impulse Withstand Voltage (Uimp)	4	kV
Isolation Function	Available	-
Pollution Degree	2	-
Trip Mechanism	Thermal-magnetic trip	-