Liebert Emerson 02-790876-00 REV.C AC Fuse Monitor PCB

The Liebert / Emerson 02-790876-00 Rev. C AC Fuse Monitor PCB is a power-protection circuit board used in Liebert precision power systems (UPS and HVAC). It monitors AC fuses for open-circuit faults and provides alarm output to supervisory or control systems. Manufacturer: Emerson Network Power (Liebert brand) Model / Part No.: 02-790876-00 Rev. C Type: AC Fuse Monitor Printed Circuit Board Function: Supervises and detects fuse status (open / intact) for 3-phase AC lines Fuse Channels: 3 channels (L1, L2, L3 monitoring) with status indication Indicators: LED alarm status per phase; fuse blown indication Input Voltage: Nominal 120–240 VAC (monitored line through sense circuit) Output Signal: Dry contact relay output (NC/NO selectable) for fault alarm Relay Rating: 24 VDC / 120 VAC @ 1 A max (typical signal level) Connectors: 10-position screw terminal block for line/fuse connections, DB-9 interface header Power Requirement: 24 VDC (typical logic supply) PCB Size: Approx. 6 in × 3 in (150 mm × 75 mm) Mounting: Standoff mount holes on corners for panel installation Board Markings: UL Recognized Component — 94V-0 rated PCB Applications: • Liebert HVAC and UPS systems • Power distribution unit fuse status monitoring • Alarm interface for industrial panels • Preventive maintenance and fault isolation Country of Origin: USA Please review pictures carefully and let us know if you have any questions!