To obtain an enclosed electric compressor in which the risk of shifting or dropping of an interphase insulating material can be eliminated without sacrifice of workability at the time of inserting the interphase insulating material.

The interphase insulating material 25 for electrically insulating between the windings of different phases in the slot 15 of a motor stator is constituted of an interphase insulation 25a located between the windings of different phases in the slot of the motor stator and extending in the axial direction of the stator and in the radial direction in the slot, and a latch 25b formed at one or both ends of the interphase insulation 25a in the axial direction to project in the direction of adjacent windings while intersecting the axial direction perpendicularly wherein the latch 25b is bound fixedly to the stator winding 17 by means of a binding member 22.