Patent ID: 8531256
Filing Date: 2013-09-10
Classification: H01H

Abstract:
1. A method of employing a tool in calibrating a thermal trip apparatus of a circuit interrupter, the thermal trip apparatus comprising a thermal trip element and a support upon which the thermal trip element is disposed, the tool having an elongated shank and having at least a first engagement element extending from the shank in a direction generally perpendicular to the direction of elongation of the shank, the method comprising: detecting a thermal calibration setting of the thermal trip apparatus; engaging the thermal trip apparatus with the tool; deforming the support by applying one of a compressive force and a tensile force to the shank when the thermal calibration setting is higher than a target thermal calibration setting; and deforming the support by applying the other of a compressive force and a tensile force to the shank when the thermal calibration setting is lower than the target thermal calibration setting.