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it's possible,but each time the trip went instantly.i still don't understand why the fat wires go to the low voltage-since low the voltage cable [the cable that goes to the lights]is of a much smaller gauge then the mains cable. that is- mains cable to similar size from pri on transformer...

rechecked and tried blew fuse again.secondary not connected to anything,just terminal blocks-guessing it must be a faulty transformer!thanks for your help.tim

thanks for responding so fast and sorry i thought this had been posted in diy.So just to confirm the pri connects to the mains 240v,its just that when connected to the mains[but not to any lighting to eliminate any errors downline]it causes the trip to switch and because i had read that high...

Hi,i'am trying to wire up a 300w submersible transformer.there are no instructions.the 2 cables that come from it are marked 'pri' and 'sec'.my understanding is that 'pri'is the cable connected to the mains,while 'sec' is the low voltage output.whats confusing me is the 'sec' cable is...