Installation unit for installing circuit breakers or residual current devices in device installation ducts of the Rapid 80 GK, GS and GA series. With 1 top hat rail 3 TE. 6 mm² terminal blocks for N and PE on top hat rails, fully wired. The cable cross-section is 6 mm². The installation unit is pre-wired and ready for connection. 2 cable glands type V-Tec M20 are included in the scope of delivery for cable entry. A maximum of 3 cable glands M20 or 1 cable gland M25 can be mounted on each side.