Designed for wiring with a voltage of up to 400 V. For installation in insulated facades with a thickness of 120-300 mm. Suitable for the installation of devices that are concealed beneath the facade surface (switches, sockets, 400 V fuses, hose outlet for garden hoses). Prevents the formation of thermal bridges. When installed on exterior plaster, sealing with silicone or rubber-based window sealant is recommended (IP 44).