Abstract: A current sensor includes a housing having a face and sidewalls. A channel is formed in the housing to allow a conductor to pass therethrough. A clamp is also located upon the housing, including a jaw having a cable engagement surface. A pawl is positioned upon an edge of the jaw and is designed to engage notches on the face of the housing. The jaw may be rotated upon the face of the housing such that the cable engagement surface moves perpendicularly across the axis of the channel. When a cable is located in the channel, the jaw may be rotated clockwise and placed snugly against the cable. If the flange is moved away from the face, the pawl is released from the notches, and the jaw may rotate freely, thereby allowing the cable to be released from the clamp.