What is the difference between ID-RCCB & Vigi module to provide earth leakage protection ?

ID-RCCB stands alone and is not related to  the Miniture CB to provide earth Leakage protection but still the CB is necessary for overload& Short circuit protection
It will trip in case of the existence of Residual current

Vigi module is an add on module on ic60(N/H/L) to provide the earth leakage protection