Din Rail Single Phase Weekly Programmable Digital Time Switch Relay Timer Key benefits Ensures continuous operation by automatically switching to backup power during outages and returning to main power when it is restored. Provides flexible weekly scheduling with 7 day programmable control for timed switching of lighting, equipment, or circuits. Designed for reliable power switching with sealed contacts and robust materials for long service life. Main features Models: AHC15A and AHC30A. Compatible voltages: 12V, 24V, 48V, 110V, 220V and supports AC 220V 230V operation. Rated transfer switching capacity: 16A (suitable for many general purpose loads). Single phase transfer switch with digital time relay control and 7 day weekly programming. Din rail mounting for compact, neat installation in distribution boxes and control panels. Sealed enclosure to protect internal components from dust and moisture. Constructed from flameretardant, temperature resistant materials to maintain insulation and longterm reliability. conductivity terminals and durable contact components for consistent performance under repeated switching. Why choose this timer relay Solves power continuity issues by automating transfer between main and backup sources, eliminating manual intervention. Simplifies scheduled control of circuits for energy management, lighting automation, and timed equipment operation. Compact DIN rail format and sealed design make it suitable for indoor electrical cabinets and distributed control installations. Applications and use scenarios Urban lighting: Schedule street or area lighting and ensure lights remain on during power interruptions by switching to backup supply. Commercial facilities: Automate lighting and critical circuits in malls or airports, and keep essential systems running during outages. Industrial or building management: Integrate into distribution boxes to control fans, pumps, or backup generators with weekly timing and automatic transfer. Technical and installation notes Intended for general purpose use and single phase systems. Install on a standard DIN rail inside a distribution enclosure; follow local wiring regulations for mains and backup connections. No hazardous chemicals used in construction. This programmable time switch relay combines weekly scheduling, automatic transfer functionality, and a compact DIN rail form factor to provide reliable timed control and power continuity for a wide range of electrical installations.