by ericmark »
Tue Jul 08, 2008 5:56 am
Without seeing only a guess but many of our German imports one just pushed in a terminal screw driver in parallel hole to open then pop in cable the cable went in round hole the screwdriver in square one. Is this what you have. there are also used in maintainace free junction blocks used to bury cables in walls claimed to be better as screw can't work lose.
All best Eric