Calibration assembly and process for use in a circuit protective

Details Calibration assembly and process for use in a circuit protective Calibration assembly and process for use in a circuit protective

1999-06-09

2000-08-15

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 3, 337 13, 337 38, 337 45, 337 59, 200286, 335 35, 335 45, 335145, 335176, 374 1, 374205, H01H 7300, H01H 7348, H01H 7512, G01N 2534

Patent

active

061042730

ABSTRACT:
In an exemplary embodiment of the invention, a calibration arrangement and process for use in a circuit protective device are presented. An exemplary calibration assembly for use in the calibration process of the present invention includes a split clamp arm having a first opening for receiving and holding a calibration pin and a second opening for receiving an actuator key. A portion of the split clamp arm is divided into a first arm and a second arm by a channel which extends from a first end of the split clamp arm through the first opening and communicates with the second opening. The split clamp arm is opened by inserting the actuator key through the second opening and because of the preferred oblong or rectangular shape of the second opening of the split clamp arm, rotation of the actuator key therein forces the members forming the first opening of the split clamp arm apart from one another. As a result, the calibration pin is free to float (move) within the first opening and the calibration assembly may be set.

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