Plug-in safety critical railway relay with 6 weld-no-transfer single contacts. Also equipped with a back EMF suppression diode. No external retaining clip needed as integrated ‘snap-lock’ will hold relay into socket under all circumstances and mounting directions. The construction of the relay and choice of materials makes the D6-U200N-W relay suitable to withstand corrosive atmospheres, low and high temperatures, shock & vibration and dry to very humid environments. Compact design, choice of many options and a wide range of sockets makes the D6-U200N-W relay an easy and flexible solution to use.