Connection and metering sets are designed to supply electricity consumers billed through direct metering systems. Installed on the external walls of buildings, as recessed or wall-mounted. The housing is designed to mount electric meters, both 1f and 3f, as well as pre-meter protections. The housing is equipped with a connection strip, inspection glass, plugs for sealing and special embossing for easy cable entry. The housing is also available in a version with a metal lock.