Yes, a Digital Timer can operate with both AC and DC voltage inputs, depending on its design and specifications. Some models are built to handle only AC supply, while others are compatible with DC, and a few can work with both. The main difference lies in how the timer’s internal circuit handles power. AC-powered Digital Timers are commonly used in panel-mounted or industrial control systems where mains supply is available, typically in the 85–264V AC range. DC-powered timers, on the other hand, are often used in control circuits, PLC panels, or battery-operated systems, usually working between 12V DC and 24V DC.
Many modern Digital Timers are designed with universal input voltage capability, meaning they can automatically adapt to either AC or DC power. This makes installation much easier and avoids confusion when wiring control panels. However, it’s important to always check the voltage rating and polarity before connecting power to prevent circuit damage. For example, timers from brands like Selec and Omron support both AC/DC power inputs, giving flexibility for various industrial applications. Using the correct power input ensures stable performance, accurate timing, and long life of the device.
So, to put it simply, yes — Digital Timers can work with both AC and DC inputs if they are designed for it. Always check the label or datasheet before installation. Choosing the right power type ensures your automation system runs safely and efficiently. Whether it’s controlling a motor, heater, or conveyor, a Digital Timer with dual-voltage support offers more versatility and reliability in any industrial setup.