Y50DX-1804ZK10/TJ2Power ConnectorCircular, compact, with fewer cores, high current, plug and socket snap-in connection, waterproof and dustproof after connection, made of stainless steel for corrosion resistance, contact pieces available from single-core to 5 cores with varying current capacities, termination types include welding and crimping, and special cases use wire nut fixed style, generally used for wiring connections between power equipment.