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Grey metal box with dial and mounting holes

Intermatic

Intermatic T7401B 7-day electromechanical timer switch

SKU CH-C4R7-YAWV3

A 7-day electromechanical timer switch with SPST contacts rated 40 A at 125 V AC, clutchless gears, steel NEMA 1 enclosure and 14 included trippers

  • 7-day scheduling fits weekly routines
  • 40 A SPST contacts switch heavy loads
  • Clutchless gears prevent slipping over time
  • Steel NEMA 1 enclosure protects mechanism
  • 14 trippers included for flexible programming

7-Day Electromechanical Timer Switch

The Intermatic T7401B is a 7-day electromechanical timer switch designed for controlling electrical loads on a weekly schedule. It uses a SPST contact form rated at 40 amps and 125 volts AC. The steel enclosure carries a NEMA 1 rating and includes heavy-duty clutchless gears to prevent slipping during operation. It is suitable for indoor applications requiring automated on/off cycles.

Verify Voltage Load and Mounting Requirements

Before ordering, confirm that the supply voltage matches the 125V AC rating and that the connected load does not exceed 40 amps or 2 hp at 120V and 5 hp at 240V. The unit requires a wall mount with a minimum time setting of 3.5 hours and a maximum of 21 hours per cycle. Ensure the enclosure dimensions fit the available installation space and that the NEMA 1 rating meets the environmental conditions of the site.

For Fixed Weekly Scheduling in Indoor Settings

This timer suits installers needing a reliable 7-day electromechanical switch with day-skipper functionality and up to three on/off cycles per day. It is not for applications requiring voltage other than 125V AC, loads above 40 amps, or more than three daily switching events. Buyers needing digital programming, shorter minimum intervals, or outdoor-rated enclosures should look at other timer types.

Highlights

  • 7-day scheduling fits weekly routines
  • 40 A SPST contacts switch heavy loads
  • Clutchless gears prevent slipping over time
  • Steel NEMA 1 enclosure protects mechanism
  • 14 trippers included for flexible programming

Specifications

BrandINTERMATIC

Questions about this item

Does the Intermatic T7401B ship with the trippers needed to program on/off cycles, or must they be ordered separately?

Fourteen trippers are included in the box, enough for the maximum three on/off cycles per day across a seven-day schedule. Extra trippers are available under part number 11Z966 if more are needed.

Should I choose the 125 V AC rating or a different voltage version for a standard North American circuit?

The timer is rated for 125 V AC only and handles up to 40 A resistive, 2 hp at 120 V or 5 hp at 240 V, so it suits typical 120/240 V single-phase loads without a separate voltage option.

What does the 3.5-hour minimum setting mean when the timer is controlling a 40 A load in a real installation?

The shortest on or off period you can programme is 3.5 hours, and the longest is 21 hours, so a 40 A circuit cannot be switched for intervals shorter than 3.5 hours with this unit.

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