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CONVERT HEATER FROM 3-PHASE to SINGLE-PHASE

Please inform your electrician that the way to convert your 3-phase devices from 3-phase to single-phase is to: 


At the heater, there are 3 existing links across terminals 2 & 3, 

remove 2 of them (leaving one in place) 

and place them across terminals 4&5 and 5&6.


Connect 2.5mm sq.(4.5kW) or 6mm sq. cable (6-9kW) between the local isolator & the heater terminals. Live to V, neutral to right hand N in the controller. Live to 5 and N to 2 or 3 in the heater. Earths are obvious.

An alternative is to run 3 x 2.5mm sq. flexes between the heater & the local isolator and connect all 3 blues to the terminals 2&3 and the 3, browns to 4,5 & 6 respectively. The 3 browns and the 3 blues go to the LOAD L & N terminals in the local isolator. The earths are obvious.

Make sure ALL connections are tight.


If you have any problems, give me a call on: 01909 566402, or email: AAsaunaman@gmail.com