Amphenol Alden PL-700 Series Circular Connectors Amphenol Alden's PL-700 Series have Pulse-Lok® and auto-latch mating action which confirms connector pairs are fully engaged. Features up to 27 contact positions, 5,000 mating cycles, and waterproof according to IP-67 standards. These PL-700 series connectors are available in 1-to 7-pole configurations, accepts wire gauges up to 12 AWG (1 pole), 16 AWG (2 poles), and 22 AWG (7 poles).