Liebert Emerson 02-790802-00 REV.C Gate Drive Static SW Board

The Liebert / Emerson 02-790802-00 Rev. C Gate Drive Static Switch Board is a power electronic control PCB used in Liebert UPS and power conditioning systems. It provides isolated gate drive and protection for SCRs (thyristors) in static switch assemblies, enabling rapid and reliable transfer between power sources. Manufacturer: Emerson Network Power (Liebert brand) Model / Part No.: 02-790802-00 Rev. C Type: Gate Drive PCB for Static Switch Function: Controls and drives SCR gate signals for UPS static transfer operation Input Voltage: 24 VDC nominal (control supply) Gate Channels: 6 independent isolated gate drive circuits (6 red test switches visible) Output Type: Pulse drive outputs for SCRs / triacs (optically isolated) Trigger Signal Interface: TTL/logic level via 10-pin header connector Gate Drive Isolation: Transformer-coupled for each channel Protection Features: • Short-circuit and overcurrent protection • Opto-isolation between control logic and power section • On-board test/reset switches for maintenance and diagnostics Connectors: • 12-position terminal block for SCR / load connections • DB-style or IDC header for signal/control input Indicators: Per-channel LED gate activity / status indicators Board Dimensions: Approx. 7.5 in × 2.5 in (190 × 65 mm) PCB Material: FR-4, 94V-0 rated industrial-grade epoxy laminate Applications: • Liebert UPS static transfer switches • Power redundancy systems • AC bypass and load transfer circuits • Industrial solid-state switching and control modules Country of Origin: USA Please review pictures carefully and let us know if you have any questions!