RCBOs type A high immunity (HI)

RCBOs high immunity (HI) provide full protection to both the persons and the electrical appliances, as they are designed to automatically cutoff the power supply in case of overload, short-circuit and earth leakage; furthermore they are designed with an electronic circuit which can discriminate between temporary leakage caused by disturbances on the main and permanent leakage due to proper faults. These devices provide the residual current protection already granted by a standard RCBO, and additionally their installation prevents eventual unwanted tripping in all those cases where service continuity is a must.

RCBOs’ functioning is independent from line voltage and its mechanism is trip-free, that is the RCBOs can also trip when the lever is held in ON position. All RCBOs are equipped with a visual indicator which discriminates residual current tripping (blue) from overload tripping (transparent). All products can be power supplied from both the top and the bottom terminals. Furthermore “cage” type terminals facilitate connection both through conductors (up to 35mm² rigid and 25mm² flexible) and through busbars (both pin or fork types).

Accessories