Basic Info.
Model NO.
LD-AFD-M
Speed
High-Speed Circuit Breaker
Poles Number
1-3
Type
Arc Fault Circuit Breaker
Function
Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), Detection of Current Voltage and Arc
Operating Voltage
220V
Working Environment
-40~85 ºC, Humidity Less Than 90%
Installation Method
35mm DIN Rail
Features
485 Communication, Modbus-RTU ,
Display
LCD
Transport Package
Carton, Box, Wood
Specification
100x36x67, 100x72x65, 90x126x74, 72x95x66
Trademark
LEIDUN, OEM, ODM
Origin
China
Product Description
An Arc Fault Circuit Breaker (AFCB), also known as an Arc Fault Detection Device (AFDD), is a specialized circuit breaker designed to identify and deactivate electrical arcs that pose a fire hazard. Unlike standard circuit breakers, which are triggered solely by overloads or short circuits, AFCB possess heightened sensitivity to detect arc faults. Key information regarding AFCB includes the following:
Functionality:
AFCB operates by recognizing the distinct characteristics of an arc fault, which occurs when electrical current bypasses the intended load and arcs between conductors. Upon detection, the AFCB interrupts the electrical flow to prevent the potential ignition of a fire.
Regulatory Requirements:
AFCB is mandated in numerous new residential constructions and are increasingly being integrated into older homes. The specific requirements for AFCB installation are determined by the building codes applicable within the respective jurisdiction.
Troubleshooting a Tripping AFCB:
In instances where an AFCB frequently trips, it is advisable to disconnect appliances, switch off lights, and examine the wiring for any issues. Should the AFCB continue to trip despite these measures, it may indicate a malfunction or obsolescence, necessitating replacement.
