30A load programmable weekly digital timer switch relay control time 7 automatic switch machine installed on DIN rail.TM919B (30Amp load) DIN rail 7-day 24-hour programmable switch timer can automatically turn on and off electrical equipment at preset times.It is widely used in 7 programmable controls of streets, lights, signs, air conditioners, billboards, rice cookers, superchargers, spray, bottlers, preheaters, agricultural facilities and broadcasting equipment.The digital timer switch is built into a 1.2V/40mA rechargeable battery and is used to store power failure programs. It has the characteristics of low power consumption, high-precision CMOS chip, strong anti-interference ability, and simple setup.Specifications:Model: TM919BPower supply: AC220VSwitch contact: 1 conversion switchProgram: Open/close 16 times a day or weekMinimum interval: 1 minuteTiming range: 1min~168hrColor: WhiteMaterial: ABS+electronic componentsAverage error: 1s/24h, 25