Functional Test of the Residual-Current Circuit Breaker with Overcurrent Protection (RCBO) Device
A certified electrician must perform the functional test of the residual-current circuit breaker with overcurrent protection (RCBO) device, according to the IEC 61557-6 standard.
In high-voltage countries with a mains voltage of 220-240 V, the functional test can be performed by pushing the yellow button on the RCBO device.
In low-voltage countries with a mains voltage of 110-120 V, the functional test must be performed using the phase and neutral in the two test openings above the RCBO device.
A | Phase | B | Neutral |
