The Struthers-Dunn 219XBXPLM-4A-11M is an electronic timer relay. It is used in a wide variety of industrial, commercial, and residential applications for controlling pumps, motors, ventilation systems, and other loads. The 219XBXPLM-4A-11M features an NEMA 4X enclosure, making it suitable for both indoor and outdoor installations. The timer is multi-voltage capable, with an input surge rating of 500 VAC, making it suitable for use in hazardous locations. It also features 4 threshold switching options, selectable from 0.05 to 12 hours. The relay also includes an LED power indicator, as well as plug-in screw terminals for easy wiring.