Intermatic T104R 24 Hour Mechanical Timer Switch | 208–277 VAC, DPST, 40A, Outdoor Enclosure

Meet the Intermatic T104R 24-Hour Mechanical Time Switch

Designed to simplify daily scheduling, the Intermatic T104R provides reliable, hands-off control for lights, pumps, fans, and HVAC equipment. With a rugged build and straightforward operation, it offers a practical solution for managing energy use in homes, workshops, and small commercial spaces without relying on batteries or digital interfaces.

The T104R excels in environments that demand resilience. Its Type 3R metal enclosure is weather-resistant and UL-listed for indoor or outdoor installation. This makes it a solid choice for garages, sheds, mechanical rooms, and exterior panels where protection against the elements matters.

Key capabilities

• DOUBLE POLE, SINGLE THROW (DPST) design supports two-line control and handles up to 40A loads, including motors up to 5 HP at 240V and 2 HP at 120V.
• 24-HOUR MECHANICAL CONTROL with up to 12 ON/OFF events per day and a minimum of one hour between transitions for consistent daily cycles.
• TRIPPERS INCLUDED for quick setup: one ON and one OFF tripper to start scheduling immediately, with no batteries or digital configuration required.
• WIDE-RANGE LOAD COMPATIBILITY supports resistive loads up to 40A across 120–480V, plus inductive, ballast, and pilot-duty loads up to 277V; UL and CSA listed for safe operation in lighting, HVAC, and industrial control tasks.

Real-world use cases

• Automate exterior lighting, sign illumination, or sign displays to run on a daily schedule.
• Control pool pumps, aquaponics systems, or ventilation fans in workshops and maintenance areas.
• Schedule HVAC or air circulation equipment to operate during defined windows for comfort and efficiency.

Why choose the T104R

The combination of a durable enclosure, high-load capability, and a simple mechanical interface offers dependable, long-term performance in demanding environments. It’s a practical option for projects where a robust, timer-driven control is preferred over digital solutions.