Key switch, changeover switch 2 positions and imprint '1' and '2' AP W.1 polar white. Key changeover switch with imprint AP, separate input terminals, IP55, with lock, with identical locking mechanisms. For central locking systems, with 2 keys, key can be removed in 2 positions, with imprint for ON/OFF, with screw terminals, with an entry for 2 cables and an entry for a cable or pipe, full-surface seal under the housing base to seal the rear of the housing, easily accessible, funnel-shaped mounting holes in the housings, a Wago 2-wire connection terminal for wiring included, two snap-in positions for Wago 2-wire connection terminals in the housing base, plenty of space for wiring under the bases of the inserts (hollow base), easy installation of the insert in the housing by snapping it into place, secure fixing of the frame to the housing via bayonet quick-release fastener, housing screws made of stainless steel. Surface-mounted installation. Material: plastic, thermoplastic, impact-resistant.