ATC 319B015Q1C U3309H Time Delay Relay

ATC 319B015Q1C U3309H Time Delay Relay is a solid-state ON-delay timing device from Marsh Bellofram’s ATC Diversified line. It provides a controlled delay before energizing a load, using electronic timing and an analog dial to set the interval from 0 to 300 seconds. Designed for 120 VAC control circuits with 50/60 Hz input, this relay delivers repeatable timing across a wide temperature range, making it suitable for sequencing, interlocks, and anti-short-cycle protection in industrial controls. The 319B015Q1C model is part of the 319 series, a cost-effective on-delay relay family known for precise timing. Typical applications include machine start sequencing, conveyor coordination, controlled lighting, and process automation where a predictable start delay is required after input activation. Key specifications include solid-state electronic timing, ON-delay operation, timing range 0–300 seconds, nominal input voltage 120 VAC, 50/60 Hz operation, analog dial adjustment, and a compact housing for integration into control panels. The model is associated with Marsh Bellofram ATC Diversified, a brand recognized for durable industrial timing relays. Weight is approximately 0.35 lb.