The 1971862-2 is a female coupler from the TE Connectivity Solarlok PV4-B series, designed for solar photovoltaic junction-box and panel interconnect applications. It accepts 10 ~ 12 AWG wire and carries a Plus keying code to prevent cross-mating with other Solarlok variants. The coupler is a field-mateable, tool-less connector common in rooftop and utility-scale solar arrays where a reliable, weatherproof DC power connection is needed.
Wire Gauge and Keying
The 10 ~ 12 AWG wire range covers the standard PV cable sizes used for string-level DC trunk lines. The Plus coding means the coupler only mates with a matching Plus-coded male half — a standard Solarlok PV4-B male plug with the same keying. This prevents accidental connection to a Minus-coded or unkeyed receptacle, which matters when the array uses polarized connectors for polarity safety.