PURPOSE: To obtain a highly reliable induction-type electromagnetic pump free from unbalanced current by lowering the rated voltage of said electromagnetic pump through enabling the connection of said induction-type electromagnetic pump to increase the number of parallel circuits thereof.

CONSTITUTION: Coils 1-6 and 19-24 are respectively collected to form end coil groups 27 at both ends of an electromagnetic pump so that a terminal group U1, V1, W1 is connected with an auxiliary power terminal A. Because the whole central coil group 28 shown by the remaining coils 7-18 has a uniform impedance, said group is divided into the appropriate number of circuits and terminals U, V, W are connected with a main power terminal B. Separate power supplies are respectively connected with said auxiliary power terminal A and main power terminal B to operate said electromagnetic pump. Even if said circuits of the central coil group 28 are connected in parallel, a uniform current flows through said parallel circuits, and power supplies for said end coil groups 27 can be regulated separately so that an appropriate electric current can flow also through said end coil groups.