Marinco CLS40FB-B CLS Cam Type, Series 16 Inline, Single Pin Connector, 400 Amp, 600 Volt, 2/0-4/0 AWG, Female - White (B)
Marinco CLS40FB-B CLS Cam Type, Series 16 Inline, Single Pin Connector, 400 Amp, 600 Volt, 2/0-4/0 AWG, Female - White (B)
$22.91
Check on amazon

Constructed of solid weatherproof materials, UL listed, CSA listed, NEMA 3R and NEMA 4 rated for wet locations CLS Series inline connectors have a non-conductive retaining screw which passes through the metal contact and fastens at both ends to the retaining ring, providing maximum resistance to excessive torque loading All CLS products mate precisely with all other manufacturers’ cam products UL listed and CSA certified

This Marinco Power Products female CLS Series 16 Inline is 400 Amp, 600 Volt. It is NEMA 3R and NEMA 4 rated. It is made with a santoprene boot and accepts 2/0-4/0 wire.