Relpol r3n series 10a industrial 3pdt plug in relays relpol r3n 2013 23 5230 wtl this 10a miniature industrial relay is a plug in relay with a 3co 3pdt contact arrangement additional features include locking test button flag indicator and led indicator suitable for general purpose use in control panels and other control applications relpol r3n 2013 23 5230 wtl industrial 230v ac 10a 3pdt plug in relay