C09111H1070004U is an industrial circular connector manufactured by Amphenol Tuchel, designed for harsh environment applications requiring reliable electrical connections. The connector features a 7-pin contact arrangement (07-b configuration per IEC 61076-2-106) with an M16 x 0.75 thread coupling and 20.5 mm diameter housing. It is rated for 100V nominal voltage with 1500V impulse withstand capability, operates across a temperature range of -40°C to +100°C, and achieves IP68 sealing protection. The connector utilizes zinc die-cast nickel-plated dielectric material, thermoplastic sealing, and chloroprene contacts with silver or gold-plated termination options, supporting wire gauges of 0.09–1.0 mm². With an insertion/withdrawal force of 55N, mechanical operation rating of =500 cycles, and UL 94 V0 flammability compliance, this connector is ideal for industrial automation, machinery control, and outdoor installations where durability and environmental protection are essential.