Blind series button with imprinted arrow symbol AP W.1, polar white. Blind series button with imprinted arrow symbol AP, with mechanical and electrical locking to prevent switching on from both sides, with plug-in terminals, with an entry for 2 cables and an entry for 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 housing, a Wago 2-wire connection terminal for wiring included, two snap-in locations 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 using a bayonet quick-release fastener. Observe the motor manufacturer's instructions. Housing screws made of stainless steel. Surface-mounted installation. Material: plastic, thermoplastic, impact-resistant.