Description

Ex9BL residual circuit breaker with overcurrent protection are suitable for domestic as well as industrial applications. They are based on combination of residual current device with electromagnetic principle and circuit breaker with thermal overload release and magnetic short circuit current release. It brings the advantage of voltage independent function of the residual current device. Adequate voltage is only necessary when testing the RCBO with the T test button. Magnetic RCBOs should be tested regularly with a period of one month.