YJB1-63/AFD Circuit Breaker with Leakage Arc Fault

Scope application

The AFDD arc fault protection circuit breaker is assembled from a small circuit breaker and an arc fault protection module, and has protection functions such as overload, short circuit, arc fault protection, and leakage monitoring.

AFDD arc fault protection circuit breaker is suitable for AC 50Hz, rated voltage 230V, rated current up to 63A and below lines, used for overcurrent protection of buildings and similar use lines, and can also protect against arc faults, parallel arc faults, and series arc faults. To a certain extent, fire safety can be reduced by detecting many fire risks caused by electrical device rupture or wire aging in advance, which provides effective protection for people’s lives and property safety in the event of electrical accidents.

Model Meaning

Product Features

Arc fault protection function;

Short circuit, overload, and leakage protection

Window indication, leakage current test

YJB1-63AFDD series arc fault protector is a new type of electrical protection device. Composed of circuit breakers, trip mechanisms, and arc detection modules, it has the functions of short circuit protection, overload protection, leakage protection (optional), and arc fault protection. By adopting new circuit protection technology, when a fault arc occurs in the circuit, it can be detected and identified in a timely manner before cutting off the circuit, preventing fires caused by faults and effectively avoiding the occurrence of electrical fires.

Usage scenario

Residential buildings, childcare facilities, elderly facilities, facilities for the disabled, and places where people stay for a long time

Places for storing flammable and combustible materials, such as lumber mills, flammable material warehouses, etc;

Museums, libraries, exhibition halls, and other places where valuable items are collected or exhibited;

Shopping malls, supermarkets, hotels and other densely populated places.

Normal working conditions

1. Surrounding air temperature

a. The upper limit value shall not exceed+40 ℃.

b. The lower limit value shall not be lower than -4 ℃.

c. The average value within 24 hours shall not exceed+30 ℃.

d. The maximum operating temperature is -40 ℃~+75 ℃.

2. Altitude

The altitude of the installation site shall not exceed 2000 meters,

3. Atmospheric conditions

a. When the ambient air temperature is+35 ℃, the relative humidity of the air does not exceed 50%, and there can be higher relative humidity at lower temperatures.

b. When the monthly average lowest temperature of the wettest month is 20 ℃, the monthly average relative humidity is 90%.

c. We have taken into account the condensation that may occur on the surface of the product due to temperature changes.

4. Pollution level

The pollution level used for the protector is level 2.

5. Installation category

Installation categories are II and III.

Main parameters and technical performance

Product size

For electrical maintenance and installation, it is necessary to ensure that the operator holds the qualification for electrical work and takes necessary power-off and insulation protection measures.