An insulator constituting a stator for a motor includes an extension portion that extends from a portion of a circumferential wall portion toward a plurality of terminals conforming to an axis line of the stator. A sealing member includes a cut-out hole in between an adjacent pair of the plurality of terminals, the cut-out hole being a through-hole extending conforming to the axis line. An end of the cut-out hole is blocked by an end surface of the extension portion.