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In a BMXSPS4022 redundant power supply situation, what is the current draw on the “standby” power supply?

Published date: 05 March 2019

Issue
Do the M580 redundant power supplies share the load?

Product line
M580, Modicon X80

Resolution
The Primary supply supports 100% (or close to 100%) of the load and the Standby 0%.
As far as sizing goes, the nominal draw of both power supplies must be accounted for. In a 24VDC setting, it will be 1.9 A + 1.9 A or 3.8 A.

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