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Engine : Electricity - 603/1386
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As shown in figure "6" of the illustration, what does the symbol represent as used in electrical drawings? EL-0026
A) maintaining type push button with a mechanical interlock
B) normally closed contact held open mechanically by an interlock
C) maintaining type push button with an electrical interlock
D) limit switch with one set of normally open contacts
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Illustration EL-0026

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