Flexible cover for contacts of a plug-in or withdrawable unit

A withdrawable unit for an electrical cabinet comprising:

• a withdrawable part including a circuit breaker, at least one phase barrier and at least one contact cage;
• a fix-mounted part configured to mount to a cabinet housing that includes electrical contacts, the withdrawable part being movable in the fix-mounted part from a disconnected position to a connected position in which the at least one contact cage makes contact with at least one of the electrical contacts;
• and
• a shutter configured to mount on the cabinet housing so as to cover the electrical contacts, the shutter including:
• a first panel including a first opening and a second panel including a second opening, the first opening being offset from the second opening when the withdrawable part is in the disconnected position, the second panel including a first guide configured to react to a pressure of the at least one phase barrier when the withdrawable part is moved to the connected position to move the second panel in a first sliding direction relative to the first panel such that the first and second openings align so as to allow the at least one of the electrical contacts to extend therethrough;
• and
• a spring housing having a spring disposed therein between at least two support legs slidably disposed in the first panel and extending through the second panel.

A method of assembling a shutter comprising:

• compressing a spring disposed in a spring housing between at least two support legs;
• pressing the at least two support legs toward one another;
• and
• inserting the at least two support legs into spring mounts of a first panel through a sliding support hole of a second panel that is adjacent the first panel such that the spring is biased against the first panel and allows the second panel to be slidable relative to the first panel so as to open and close the shutter.