| 摘要 |
PROBLEM TO BE SOLVED: To prevent the leakage of electricity from an overcurrent protective device provided in a motor during long time use or scooping-up of high- temperature fluids. SOLUTION: A pump casing is attached to the lower side of a motor, and fluids are scooped up by rotating an impeller disposed in the pump casing. Inside the motor, an overcurrent protecting device 29 is provided to cut off a current when an overcurrent flows to the motor, and a terminal portion 29d, to which the lead wire of the motor is connected, is covered with a synthetic resin made coating layer 29e.
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