Two-pole switch with '0' and '1' print AP W.1 polar white. Two-pole switch with print 0 and I, IP55, featuring mechanical coding of the rocker holder, which only allows correct mounting of the rocker onto the insert. Equipped with a neutral terminal, plug terminals, an entry for 2 wires, and an entry for cable or conduit. Full surface seal under the housing base to seal the back of the housing. Well-accessible, funnel-shaped mounting holes in the housings. A Wago 2-wire connection terminal for wiring included, with two snap-in places for Wago 2-wire connection terminals in the housing base. Ample space for wiring under the bases of the inserts (hollow base). Easy installation of the insert in the housing by snapping in. Secure fixation of the frame to the housing via a bayonet quick-release. Housing screws made of stainless steel. Surface-mounted installation. Material: plastic, thermoplastic, impact-resistant.