Low Voltage Power Supply This time delay relay is designed to work reliably with low voltage power sources, starting from as little as 3V. It is fully compatible with commonly available 3.7V lithium batteries, 5V power banks, and standard switching power supplies. Ideal for portable or compact applications where efficient lowvoltage operation is essential. Wide Working Voltage Range Operating range: DC 3V to 7V. With jumper installed: 3V to 5.5V. Without jumper: 3.8V to 7V. Power input options include DC 3V to 12V, to be sourced from common supplies such as positive power lines, buttons, PNP sensors, and PLC outputs. Output Capacity Capable of controlling devices up to DC 30V at 3A or AC 220V at 3A, making it suitable for a wide variety of applications ranging from small motors to lighting systems. Current consumption is efficient, with a quiescent current of 15mA and working current of 30mA. Strong AntiInterference Performance Features optical coupling isolation for the output, significantly improving resistance to external electrical interference. This ensures reliable performance even in environments with electrical noise, such as industrial or workshop settings. Data Retention Function Designed with an industrialgrade circuit board that stores configuration parameters even after power loss. This prevents the need to reprogram or adjust the relay settings after interruptions, saving time and ensuring continuous operation. Practical Applications 1. Industrial automation: use with PLC systems to control machinery with accurate delays and protection from signal noise. 2. DIY and hobby electronics: power from lightweight lithium batteries for portable projects, robot control, or timed operations. 3. Home automation: integrate with lowvoltage power supplies to control lights, fans, or small pumps with reliable delay functions. Compact, versatile, and durable, this time delay relay delivers dependable control in lowvoltage systems while offering compatibility, strong interference protection, and convenient datasaving capability for uninterrupted operation.