1971919-1 is a SOLARLOK PV4-PM connector kit with pin-male contact designed for panel mount solar applications rated at 1500V DC. The connector supports wire sizes from 4.0 mm² to 6.0 mm² (AWG 12-10) and features a precision contact structure that minimizes power loss with a contact resistance of 0.35mO. It provides IP68 waterproof protection rated for 1m depth over 24 hours, with a PC housing and tinned copper contacts. The connector is certified to UL6703 and IEC62852 standards, making it suitable for solar inverters, combiner boxes, micro inverters, and DC optimizers where reliable high-voltage power connections are required.