The closest visual equivalent to the Xantrex units is the WAGO 2606-1103.
The inverter needs a modification.
An AI agent (Google) suggests adding stranded 12AWG as a stress relief strategy.
Stranded 'pigtails' go to the pcb then to WAGO splice connectors that tie stranded and solid wires together.
The existing lever connectors would be removed and stranded wire soldered directly to the pcb. Alternatively, the broken WAGO connector could be replaced and stranded wire inserted there.
The AI response mentioned an inherent weakness in using solid 12AWG wire in those connectors and that reports of loose or intermittent contact had occurred. Hence the stranded wire substitution. This is intuitively correct and appeals to experiential common sense.
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