Intermatic DT101 Digital Time Switch – 20A, 24-Hour SPST, 1-Circuit

Overview

The Intermatic DT101 digital time switch offers a clear upgrade from basic mechanical timers. Built for reliability, it controls a single circuit with precise, programmable timing and a simple interface. This device is ideal for managed lighting, pumps, or fans where consistent on/off cycles matter, all while remaining straightforward to set up and maintain.

What it delivers

Designed for flexibility, the DT101 supports a broad voltage range and accurate scheduling, with safeguards that help keep your system on track even when plans change. The timer repeats on a daily cycle and can run with daylight saving time automatically, reducing manual tweaks and potential errors.

• Selector switch to determine input voltage between 120-277 VAC, 50/60 Hz
• To-the-minute accuracy for precise on/off control
• Temporary override or permanent manual override for quick adjustments
• Automatic Daylight Saving Time adjustment to stay aligned with the season
• Astronomic models enable dusk-to-dawn scheduling for outdoor lighting

Practical uses and scenarios

Think of it as a dependable conductor for everyday automation. Use it to automate exterior lighting, pool equipment, or ventilation fans, and let it run on a repeating daily schedule. The available overrides make it easy to adapt to special events or weather-related needs without reprogramming the entire timer.

• Exterior and interior lighting that benefits from consistent daily cycles
• Pumps, circulators, and fans that require reliable on/off timing
• Signage or architectural lighting that can leverage dusk-to-dawn scheduling
• Power loss scenarios supported by a battery backup that preserves timing settings

Why consider the DT101

Upgrading from a mechanical timer brings minute-level control, repeatable daily schedules, and simple maintenance. The DT101 combines ease of use with dependable electronics, helping you streamline automation without complex programming. The 24-hour version is designed to repeat daily, making routine timing predictable and easy to manage.