Yacht Devices NMEA 2000 YDBM-01, Руководство пользователя

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Moreover, due to safety concerns for continuous operation, it is recommended in IEEE standards to keep
the maximum amperage in a connected circuit below two-thirds (2/3) of the shunt’s rated current.
We recommend using a 75 mV shunt and selecting a current rating that takes into consideration
that maximum current of you system should be less than 65% of the shunt’s rated current. This provides
for electrical safety, and accounts for the Device’s 50 mV limitation. For example, if the maximum amperage
in your system is 60 A, a 75 mV / 100 A rated shunt will be sufficient.