The Schmersal PS315-T12-R300 roller plunger has a norm construction design. It has type C actuator type and metal zinc die-cast as enclosure material. The material of the electrical contacts is silver. It has a screw connection terminal connector. It works on creep circuit element switching principle with 1 NO contact, 2 NC contacts. It also has switching frequency of 5,000 /h with 5A of thermal test current.