The 120-1622-001 is a VEAM CIR Series circular connector insert designed for reliable electrical interconnection in industrial applications. This insert supports multiple contact arrangements with total contact counts ranging from 1 to 101 contacts, accommodating various contact sizes (0, 4, 8, 12, 16, and 16HV AWG) to meet diverse electrical requirements. The connector features multiple service rating classifications (A, B, C, D, E, H, I) enabling operation across different voltage and current specifications, including high-voltage configurations up to 6000 VAC for certain arrangements. The insert is engineered for use in aerospace, energy infrastructure, and transportation applications where environmental sealing and reliable mating are critical, with support for both pin and socket contact configurations and optional protection fronts.