4
• 230V 50Hz mains – Twin or Dual element immersion heaters.
Load
Switch Live, Off peak load –
Primary element (Brown or Red) to terminal 5
Switch Live, Boost load –
Secondary element (Brown or Red) to terminal 4
Heater Neutral (Blue or Black) to terminal 3
Earth (Green/Yellow) to
230V 50Hz Mains Supply
Live Supply (Brown or Red) to terminal 1
Neutral Supply (Blue or Black) to terminal 2
Earth (Green/Yellow) to