Application

W7NL residual curretn breaker overload are mainly applied to the AC 50Hz/60Hz circuit rated 240V and 32A or below. They have the elctric leakage (electric shock), overload, short circuit and so on protection function. The over voltage protection function can also be provided upon requirements. They are mainly used to protect the building ilumination and power distribution system.

Normal opeation conditions

■Ambient air temperature:ambient air temperature reanges form-5C ~+40C, not exceeding 35C averagely in 24 hous;

■Location:installation location can not exceed 2000 meters above sea level;

■ Air conditions:relative humidity in the installation place can not execeed 50% when the air reaches the highest temperature +40C，the averate minmum temperature when it is the wettest can not exceed 25C, relative humidity not exceeding 90%;

■Installation conditions:installation is divded into grade II, grade I;

■Installationpollution gnage:installationpollution grade is grade i;

■Installationconditions.magnetic field outside the instation place can not exceed 5times of the site of terrestrial magnetism in all direction. Normally speaking, RCBO should be mounted vertically.the operation handle puts through power source upward, there should be no notable impact and vibration in the installatin place.

Notice

■Leakage protection function of RCBO is tested and adjusted by the manufacture, users can not open the products at random during usage;

■After using RCBO for a certain time (normally one month), test button should be pressed once in a state of making the circuit to check whether the fuction of RCBO is normal and reliable (press test button once, the RCBO can break off once). If abnormal, it should be unloaded and sent to the manufacture for rpair.

■RCBO must not be wetted or soaked by rain, snow or water during the couse of transportation, stroage and usage.