Patent ID: 8917085

Claim:
A current sensor for measuring a current supplied to a conductor, the current sensor comprising: a case which accommodates an electrical parts therein; and a cover that is configured to be attached to the case, wherein a groove part is provided on an outer surface of the case to allow the conductor to pass through the groove part, and the groove part has a substantially circular arc shape; wherein a fixing member is arranged between the case and the cover so that the conductor arranged on the groove part is sandwiched between the fixing member and the case; wherein the groove part has a pair of inclined parts which are inclined in directions where the inclined parts are separated from each other in accordance with a distance from a bottom of the groove part; wherein a plurality of lock protrusions are provided on an outer surface of the fixing member; wherein a plurality of lock holes are provided in the case, and the lock protrusions are engaged to the plurality of lock holes when the fixing member is attached to the case, and wherein the lock holes are arranged with intervals in a direction where the fixing member is moved to attach to the case.