0322 04 4 Pole Din Socket Socket, DIN EN 60529, 5A, 250 V ac. The Lumberg DIN connector is round and comes with pins arranged in a circular pattern within the connector. It is a 3-pole male din plug and has an electrical rating of 250VAC and 5A. Chassis and cable mount come with up to 12-way plugs and sockets and are 360° shielded.