Contractors in the solar photovoltaic (PV) industry have been quick to use connectors rather than hardwiring wherever possible, because connector use greatly improves efficiency and reduces installation costs. One important feature of the new crop of connectors designed for use in the PV industry is their recognition under the pending UL 6703A standard, which covers multi-pole connectors for use in PV systems, including inverters, micro inverters, combiner boxes, battery power, and storage systems.