WeldingCity Welding Cable Connector Set #1-4/0 300Amp Male/Female Lenco Style with Accessories Tweco/Lenco style welding cable connector set (male/female pair). Welding cable size #1-4/0, 300Amp current rating with accessories. You get One (1) set of 300Amp welding cable connector. We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.