220-240V 16A DIN Rail Digital Programmable Timer Switch. It is widely used in 7 days programmable control of streetlight, neon light (sign), lamp, water heater, air conditioner, billboard, electric cooker, booster,sprayer, bottler, preheater, agriculture facilities and broadcasting equipment etc. Ideal for household use in DB Boards, Advanced pre-setting one week before, 3500 Watt / 16 Amps, Built-in battery for backup the memory when power failure, Auto time error correction +/- 30 sec, weekly, Repeat programs with 16 on/off settings, and setting on/off manually, Specification : Volatge 220-240V, 50/60Hz; Number of circuits 1 changeover switch (SPDT); Error 2s/day(25C); On / Off operation 8 on and 8 off; Power 4.5VA (max); Bound 1 min ~ 168 hours; Battery backup 15days; Minimum interval 1min; Load capacity 16A(8)A 220-240V AC; Humidity 35-85%RH; Operating temperature 10-55C; Pregramming steps: Steps Key-press; programming 1 press " P " Setting 1 on time (display 1 on) 2 press H+ / M+ Setting hours and minutes 3 press D+ Select same everyday, different everyday, MO-FR, MO-SA, SA-SU, MO WEFR, TU TH SA, MO-WE, TH-SA (if it is same everyday, no need to press this key) 4 press " P " Setting 1 OFFtime (display 1 off) 5 press H+ / M+ Setting hours and minutes turn off time 6 press D+ If you want the same setting everyday,you don't need to press this key 7 repeat step 2-6 Setting the 2 to17 ON and OFF time 8 press Completeset Full time clock setting : (1) Press the " clip_image001 " and " D+ " at same time to set the week. (2) Press the " clip_image001 " and " H+ " at same time to set the hours. (3) Press the " clip_image001 " and " M+ " at same time to set the mins. (4) Press the " MANUAL " will display " AUTO ON " or " AUTO OFF (5) Press the " MANUAL " can change the status, " ON " is normally open, " OFF " is normally off. Package included : 1 x Digital Programmable Timer, 1 x User Manual