Main Switchboard (MSB) · Power Distribution
The EAO Buzzer 31-810 is a panel-mounted acoustic signalling device, DNV-certified as an instrument for switchboards, with a reference to SOLAS emergency power. It sounds an audible alert from switchboard and control panel fronts when an alarm or fault condition occurs.
Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.
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