Pluggable lightning current and surge arrester combination (type 1+2/Class I+II arrester) consisting of protective plugs and base element for DIN rail mounting. Protection circuit for 3-phase power supply networks, with combined N and PE in one conductor (5-wire system: L1, L2, L3, N, PE). Equipment includes enclosed spark gaps with ignition mechanism for triggering the response voltage. Varistors are connected directly in parallel. There is an additional pluggable sum current spark gap between N and PE. Function monitoring is available for Class I and Class II arresters. The individual L-N protection paths disconnect in the event of a fault. Operating current-free (mechanical) optical fault indication and remote fault indication in the L-N paths for Class I and Class II arresters are provided via a common potential-free changeover contact. The basic element can be mounted with variable connections (outer conductor from above or below). Protective plugs can be inserted into the base element rotated by 180° (plug inscription legible). Mechanical coding of the base element and plug prevents incorrect insertion of connectors. There is a labeling option for protective plugs and terminals. Biconnect terminals are available for connecting round conductors and wiring bridges.