Phoenix Contact Distribution cabinet overvoltage

Pluggable lightning current and surge arrester combination (type 1+2/Class I+II arrester) consisting of protective plugs and a 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 an ignition mechanism for triggering the response voltage, directly parallel connected varistors, and an additional pluggable sum current spark gap between N and PE. It features function monitoring for Class I and Class II arresters, disconnection of the individual L-N protection paths in the event of a fault, and operating current-free (mechanical) optical fault indication along with remote fault indication in the L-N paths for Class I and Class II arresters 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 labeling legible). Mechanical coding of the base element and plug prevents incorrect insertion of connectors. There is a labeling option for protective plugs and terminals, and biconnect terminals for connecting round conductors and wiring bridges.