The Hirschmann GDM31F6-P2N Form A DIN 43650 (P/N: 934888-024) with 230V DC LEDs accommodates 4.5 mm to 8 mm cable. It has M16 thread and 3 Poles + ground with 18mm pin spacing. The LEDs are red and green on a P2 circuit. A P2 circuit indicates that the LED connected to Pin 1 shows the availability of the operating voltage, while the LED on Pin 3 shows the normal open condition. Hardwired. Type of connection: Screw. Comes with connector & center screw. Gasket sold separately.