Holder with self-aligning feature for holding current sensor around line conductor

A holder for a current sensor, comprising:

• a first portion having a first inner surface, a first opposing outer surface, and a first groove on the first outer surface;
• a second portion having a second inner surface, a second opposing outer surface, and a second groove on the second outer surface, wherein the first portion is at least partially separable from the second portion, the first and second inner surfaces form an opening through the first and second portions, and the first groove joins the second groove;
• and
• a plurality of flexible members on the first and second portions and extending toward the opening,
• wherein the flexible members can hold a line conductor substantially centered within the opening,
• wherein the first and second portions have an end with a hinge and another end with a clasp that releasably interlocks the first and second portions, and
• wherein the first and second outer surfaces form a curved surface substantially concentric with the line conductor when held by the flexible members.