16 Eaton SPD Series for Mounting External to Electrical Distribution Equipment Installation Manual IM01005031E—Rev 09
• Yellow LEDs: Illumination indicates a partial loss of protection (>1% to 99%), and that one or more
protective devices are now inactive and unavailable for that phase.
• Red LEDs: Illumination indicates a total loss of protection( 0%), and that one or more protective devices
are now inactive and unavailable for that phase. Red LEDs do not indicate on/off status of power.
Operating Features
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