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Will a 4 pole Busway switch plug into 3 Pole Busway?

Issue:
Can Plug in Busway switches be mixed , 3 Pole , or 4 Pole, into 4 , or 3 pole opposite Busway respectively?

Product:
I Line Busplugs

Environment:
Application

Cause:
Product Features

Resolution:
The 4 pole fusible / breaker switches can be installed into 3P Busway. This also works with 3P switches plugging into 4P Busway.

The EXCEPTION is when the BusPlug's p/n starts with "PT". These switches have a Joint pak connection on the back of them, specifically orientated for the same amount of bussing and poles.
They CANNOT be mixed.

Schneider Electric Canada

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Range:
I-Line Busway
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Range:
I-Line Busway
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