Socket insert with protective contact pin W.1 gray. Socket insert with protective contact pin and hinged cover AP/UP - increased contact protection, 2-pole + earth, with plug-in terminals, increased contact protection in accordance with VDE 0620-1, with closing hinged cover, can be manually locked in to achieve protection level IP55, connection terminals in accordance with VDE 0620-1, type DIN 49440. Inserts only achieve protection level IP55 when mounted with a housing AP or frame for UP mounting from the W.1 product line. Surface-mounted installation. Material: plastic, thermoplastic, impact-resistant.