The Phoenix Contact 1083475 PV-FT-C COLLAR NUT BK is a specialized collar nut designed for securing SUNCLIX panel feed-through connectors within enclosures. Featuring a screw connection and silver-plated contacts, this component ensures reliable, low-resistance connections over time. Ideal for solar applications, it is packaged in units of 100, making it a practical choice for large-scale installations. Ensure optimal performance by ordering this essential accessory separately for your solar connector systems.