s: 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 electrical equipment at preset time. It is widely used for 7 programmable control of street , lights, signs, , , s, billboards, rice cookers, supercharger, sprayers, bottling machines, preheaters, agricultural facilities and broadcasting equipment. The digital timer switch is built into a 1.2V/40mA rechargeable battery to the power failure . It has the characteristics of low power consumption, high precision CMOS chip, strong anti-interference, simple setting and so on. Specifications: Model: TM919B Power supply: AC220V Switch contact: 1 change-over switch Procedure: on / off 16 a day or a week Minimum interval: 1 Timing range: 1min ~ 168hr color: white Material: ABS + electronic components Average error: 1s / 24h, 25 C Package Contents: 1 * Timer Switch 1 * Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!