Timeguard TRTD7N Installation & Operating Instructions Manual page 5

• 230V 50Hz mains – Twin or Dual element immersion heaters.
230V~50Hz
MAINS SUPPLY
L
N
E
4
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 –
Primary element (Brown or Red) to
Switch Live, Boost load –
Secondary element (Brown or Red) to
Heater Neutral (Blue or Black) to
Earth (Green/Yellow) to
1 2 3 4 5
Heater Neutral
Boost Load
Off Peak Load
LOAD
Earth
terminal 1
terminal 2
terminal 5
terminal 4
terminal 3