A sensor for sensing current includes a current sensor coil and at least one active lead and at least one return lead. The current sensor coil includes an outer coil and an inner coil coupled to and disposed within the outer coil. The at least one active lead and the at least one return lead pass through the current sensor coil opening. The current sensor coil is configured to output a differential signal indicative of a current within the at least one active lead and the at least one return lead.
