A polarized electromagnet in a remote control relay includes a pair of armatures into which opposite ends of the plunger in a forward/backward movement direction are respectively inserted and fixed; a yoke to which one of the armatures becomes closer than the other when the plunger is at a stop position; an auxiliary yoke which contacts with one magnetic pole of a permanent magnet whose the other magnetic pole contacting with the yoke, the auxiliary yoke becoming closer to the other of the armatures than the one of the armatures; and a gap maintaining portion for maintaining a gap between the other of the armatures and the auxiliary yoke. When the plunger is at the stop position, the other of the armatures and the auxiliary yoke comes close to each other with the gap, a space is provided between the one of the armatures and the yoke.