Single Phase Contactor - Connections Explained, Application plus the Current in the Coil and Load Matt and Joe show how a single phase contactor can be controlled by a 1 way switch and be used to turn on many heavy current drawing loads. We see how many lighting points say in a factory can be turned on by a simple light switch via a contactor. EAL Awards City & Guilds Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E. #GSHElectrical #Ele