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Input Circuit Breaker Requirements for Symmetra PX 20/40/80 kw

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This document describes the required input over current protection (circuit breaker) required when installing a Symmetra PX


ISX 20K (All-in-One)

90A 208vac

Symmetra PX 40

175A 208vac
80A 480vac (PDU w/ Step Down Transformer required)
60A 600vac (PDU w/ Step Down Transformer required)

Symmetra PX 80

350A 208vac
150A 480vac (PDU w/ Step Down Transformer required)
125A 600vac (PDU w/ Step Down Transformer required)

 

For more information about this subject please refer to Application Notes 148, 149, and  150. (APC Symmetra PX Frame Installation Deviation and Selection of Input Circuit Breaker Ratings)

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