Abstract: An electric coil arrangement comprising a coil spool which includes at each end a flange, a coil casing and an outer connection device which comprises terminal connectors anchored within the flange and a connection socket including outer connection plugs, the connecting socket being mounted in fixed relationship on the outer surface of the coil casing at the flange for anchoring the pins whereas the socket and the outer connection pins are shaped so that the pins engage the socket when positioning the casing so as to form said connecting plugs.