5. Connection Diagram
Connect the cables to the terminal block which are marked as follows;
• 230V 50Hz mains – Single element immersion heaters only.
230V~50Hz
MAINS SUPPLY
L
N
E
3
230V 50Hz Mains Supply
Live Supply (Brown or Red) to
Neutral Supply (Blue or Black) to
Earth (Green/Yellow) to
Load
Switch Live, Off peak load (Brown or Red) to
Heater Neutral (Blue or Black) to
Earth (Green/Yellow) to
Note: a link or bridge will need to be fitted between terminal 4
and terminal 5 if you wish to use the Boost button
(single element immersion heaters only).
1 2 3 4 5
Link or
Bridge
Wire
Heater
Neutral
LOAD
Off Peak
Load
terminal 1
terminal 2
terminal 5
terminal 3
Earth
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