The 97-18-4S is a standard cylindrical connector in the Amphenol 97 Series, designed for general duty interconnection applications. It features an 18-4 insert arrangement with four size 16 socket contacts intended for solder termination. The connector is rated for a limiting operating voltage of 250V DC or 200V AC (RMS) at sea level, with a test current of 13A per contact. Constructed with a hard diallyl-phthalate dielectric insert and silver-plated contacts, it operates reliably in temperatures ranging from –55°C to +125°C. This durable, field-proven connector with threaded coupling is a cost-effective solution for various commercial and industrial applications, including robotics, machine tools, and welding equipment.