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WBUS communication
✔ Disconnect all power before wiring or servicing the relay
Rated Operational Current: 32A (AC-3)
Ethernet LAN
GRID (AC output connection)
Aurora ABB Relay + Filter Board | For 3.6kW & 4.2kW Inverters | PN: 3G74-99-1 Pb-Free | Fixes E013, E019, E023, E031, Riso Low | Used, Tested DC WBUS communicationThis is a genuine Relay + Filter Board designed for Aurora Power One ABB inverters with 3. 6kW and 4. 2kW output capacity. Identified by PCB marking 3G74 99 1 Pb free, the board integrates key functions for DC input protection, grid relay switching, and power filtering. This board is known to resolve frequent inverter faults such as: E013, E019, E023, E031, and Riso Low(also displayed as 013, 019, 023, 031, Riso Low) Condition: Used, professionally
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