ATC 305E015A20PX Analog Reset Timer 305E Series 0-15 Minute Time Delay Control

The ATC 305E015A20PX is a reliable analog reset timer from the 305E Series, manufactured by Automatic Timing & Controls (ATC), a division of Marsh Bellofram. This electromechanical timer provides precise time delay control with an adjustable range of 0 to 15 minutes, ideal for industrial applications such as process control, machinery sequencing, and automation systems where repeatable timing is essential. Key features include a large, easy-to-read dial with a knob for setting the time, automatic reset functionality, and robust construction for harsh environments. It operates on 120V AC at 60 Hz, ensuring compatibility with standard industrial power supplies. Advantages over digital alternatives include simplicity, no need for programming, and high resistance to electrical noise. However, it may lack the precision of modern digital timers and requires manual adjustment. Based on image analysis, this unit appears used but in good condition, with minor wear on the housing and intact labels. It includes a synchronous motor drive for consistent timing accuracy. Applications span manufacturing, HVAC systems, and conveyor controls. For detailed specs, refer to the official ATC 305E Series datasheet (available at marshbellofram.com or similar resources).