The GT5Y-4SN1A24 is an ON-delay timer designed for industrial control applications requiring precise time-delayed switching of multiple circuits. It features 4PDT (4-pole double-throw) contacts rated at 220V AC / 30V DC with 3A maximum current, and operates on 24V AC supply voltage. The timer offers a 1–10 second time range with adjustable settings via hand or screwdriver control, and includes Power ON and timing-out LED indicators for operational visibility. With a repeat error of ±0.2% maximum and mechanical life exceeding 50 million operations, this timer is well-suited for machinery automation, process control, and relay logic applications where reliable delayed switching and long service life are essential.