Intermatic T104 24-Hour Mechanical Time Switch 208-277V

Product Overview

The Intermatic T104 is a 24-hour mechanical time switch from the T100 Series, designed for industrial, commercial, and residential load control. It provides direct daily scheduling for lighting, signs, pool equipment, pumps, fans, heating and ventilation systems, and other compatible loads. The mechanical dial allows repeatable operation without software, networking, or batteries.

Key Features & Design

• Functionality: Provides one to twelve ON/OFF operations each day with a minimum switching interval of one hour. The T104 uses a DPST switch and operates from a 208-277V, 60Hz clock supply. One ON tripper and one OFF tripper are included; additional tripper sets are available separately.
• Installation context: Supplied in a gray drawn-steel indoor enclosure with a side-hinged door, spring hasp, lock hole, mounting holes, and combination 1/2-inch to 3/4-inch knockouts for conduit entry.
• Notable specifications: DPST; 208-277V; 40A per pole; 40A resistive at 120-480VAC; 40A tungsten/inductive or 1000VA pilot duty at 120-277VAC; 5HP at 240VAC single phase; 24-hour dial.
• Contractor-relevant details: Match the circuit voltage, load type, current, and horsepower rating to the published switch ratings before installation. The steel case dimensions are 7-3/4 in high x 5 in wide x 3 in deep.

Performance / Benefits

The Intermatic T104 provides straightforward daily scheduling for compatible electrical loads without requiring digital programming, batteries, or network connectivity. Its heavy-duty DPST switching, 40A-per-pole rating, adjustable mechanical trippers, and enclosed design make it a practical control solution for recurring commercial, residential, and equipment schedules.