The 600DT-CU from Altech is single pole double throw SPDT (1 Form C) programmable (multi-function) time delay relay with 0.1 Sec to 999 Hrs delay time, 8A @ 250VAC contact rating and screw termination. This DIN rail mount time delay relay working on supply voltage range from 20 to 240VAC/DC. Timing adjustment method: up/down digit keys. Timing initiate method: input voltage, trigger signal.