The Veris VTD Series are multi-function time delay relays equipped with an external control switch input and designed for easy socket/DIN mounting. The VTD2P-F50 includes the classic functions, while the VTD1P-UNI and VTD2P-UNI include expanded functions for the most versatile relay available. Save inventory costs by purchasing one relay for all the functions you need. Two different housings provide multiple mounting options.