أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
it's all about the device features
for example if i chose a contactor with a simple circuit for control D.O.L i'll chose the 220V contactor
if i use a special circuit for swimming pool and the place is have not any protection and i care about the maintenance man i'll chose 48V to be insure the effect will be not affevt him.
