changing faulty arlen to new helvar ballast

[palmerelectrcal]

need to change faulty ballast to new helvar 58.
not sure of connections as new unit has only four outlet connections don't want to be zapping anything?
old unit (arlen 170) which btw was wrong unit has l.n.e. input and similar 4outlet terminals which feed each
end of the fluro tube

 

[ImpededLoop]

The ballast should have a little diagram of the connections on it. Is electronic or switch start?

 

[palmerelectrcal]

yeah thanks....Ive checked the cct diagram,,and im guessing ill need a starter...which wasnt required on the old faulty
arlen ballast which iguess was electronic......might just get a SIMILAR REPLACEMET,,,r

 

[davesparks]

You can't just replace an electronic ballast with a switch start ballast, there could be a very good reason for electronic ballasts having been selected in the first place.