THC822 Dual Channel Digital Timer Switch 16A 110V 220V Programmable Timer with Battery Backup

THC822 Programmable Timer 2Channel Changeover Relay Switch with Battery Backup A compact, programmable digital timer designed to automate AC loads with reliable changeover relay contacts. The THC822 provides two independent channels with batterybacked memory and a 16A switching capacity for flexible scheduling of lights, motors, pumps, and other equipment. Key benefits Automates routine switching to reduce manual intervention and scheduling errors. Batterybacked memory preserves programming during power interruptions. Two independent changeover contacts let you switch between normally open and normally closed circuits for versatile control. 16A rated relays handle common mains loads at 110VAC or 220VAC for broad compatibility. Digital programming delivers precise on off control for daily and weekly schedules. Main features Model: THC822, supplied as 1pcs unit. Two independent channels with changeover contacts for flexible wiring options. Battery included to retain settings and real time clock during power loss. Rated switching current 16A suitable for AC mains at 110VAC and 220VAC. Digital timer switch supports repeatable schedules and timebased automation. Suitable for residential, commercial, and light industrial applications. How it solves common problems Prevents forgotten manual switching by running devices automatically on set schedules. Maintains configured programs when power cycles occur, avoiding reprogramming. Allows safe switching of different types of circuits through changeover contacts without rewiring controllers. Typical applications Lighting control: schedule indoor or outdoor lighting to turn on and off automatically for security and convenience. Water and pump systems: automate pump operation for irrigation, water transfer, or tank filling with timed intervals. HVAC and ventilation: switch fans or auxiliary devices on a timed schedule to maintain desired operating patterns. What to consider before installation Confirm supply voltage matches the unit variant you have, 110VAC or 220VAC. Ensure connected loads do not exceed the 16A relay rating. Follow appropriate wiring practices and local electrical codes when integrating into existing circuits. Package contents and basic specs Quantity: 1pcs Model: THC822 Function: Programmable digital timer switch with 2channel changeover contacts Backup: Battery for program and clock retention Relay rating: 16A Voltage compatibility: 110VAC or 220VAC This THC822 timer provides dependable, programmable switching with batterybacked memory and versatile changeover relays for a wide range of timed control tasks.