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How many electrical interlock kits can be used for a double throw safety switches?

Issue:
Product Design Features

Product Line:
Double throw Safety Switches

Environment:
Electrical interlocks

Cause:
Application

Resolution:

An Electrical interlock kit would ONLY be used if an application requires them, otherwise they would NOT be required.

A Double throw safety switch contains two 'ON' positions for two different power sources and each 'ON' position will allow one electrical interlock to be used. A Double throw switch can use either one or two electrical interlock kits, but ONLY one kit per 'ON' position. 
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