Electrical distribution supply selecting unit having mains pluggable male plug female plug with relay connected and relay connected available tariffs detector allowing selection pre programmed tariff/ switching relay.

摘要

The tariff programmable electrical plug has a mains pluggable male plug and a female plug connected to the male plug by a controlled relay (3). The relay has a control chain with a detector of available tariffs from the mains. A unit can select form the available tariffs by comparison of the tariffs available with preset controls, detecting the correct tariff and switching the relay where possible, otherwise leaving the electrical apparatus unconnected.