Intermatic
Intermatic T103PCD82 24hr DPST 40A 120V contactor
24-hour electromechanical timer with DPST contacts rated 40 A at 120 V, polycarbonate NEMA 3R enclosure, and 12 daily on/off cycles
- 24-hour electromechanical timer automates daily schedules
- DPST 40 A contacts switch heavy loads at 120 V AC
- NEMA 3R polycarbonate enclosure resists rain and sleet outdoors
- Surface-mount design with clear plastic door simplifies installation
- Wide -40 °F to 130 °F operating range suits harsh environments
24-Hour DPST Contactor
The Intermatic T103PCD82 is an electromechanical timer designed for 120 V AC circuits requiring double-pole single-throw switching. It handles up to 40 amps and 2 horsepower loads, making it suitable for controlling pumps, lighting banks or heating elements in residential and light-commercial settings. The polycarbonate NEMA 3R enclosure with a clear plastic door protects the mechanism in outdoor or damp locations.
Replaces Single-Pole Timers
This unit upgrades installations that previously used single-pole timers by breaking both hot legs simultaneously, improving safety on 120 V loads. The jump is worth it when local code or the equipment manufacturer requires DPST isolation, or when a single timer must control two separate 120 V circuits sharing a neutral. It provides up to twelve on/off cycles per day with a minimum one-hour setting increment.
40 A Capacity With 12 Daily Cycles
The contactor comfortably runs 2 hp motors or equivalent resistive loads within its 40 A rating across a temperature range of -40 °F to 130 °F. Headroom diminishes when daily cycles approach the twelve-event maximum or when ambient temperatures stay near the upper limit for extended periods. Two trippers are included; additional tripper sets are available under part number 156T1978A for more complex schedules.
Highlights
- 24-hour electromechanical timer automates daily schedules
- DPST 40 A contacts switch heavy loads at 120 V AC
- NEMA 3R polycarbonate enclosure resists rain and sleet outdoors
- Surface-mount design with clear plastic door simplifies installation
- Wide -40 °F to 130 °F operating range suits harsh environments
Specifications
| Brand | INTERMATIC |
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Questions about this item
What clearance is needed for the 11 1/2 in height and 7 1/8 in width of the polycarbonate enclosure?
The enclosure measures 11 1/2 in tall, 7 1/8 in wide and 4 in deep; allow extra space for the clear plastic door swing and for conduit entries on the surface-mount base.
Which step is often missed when wiring the 120 V AC, 40 A DPST contacts?
Install the two included trippers on the 24-hour dial to set the on/off times, then verify the contactor coil receives 120 V AC before closing the door.
When should the 156T1978A trippers be replaced?
Replace the trippers if they become worn or cracked, which can cause missed switching cycles; the timer is rated for up to 12 on/off cycles per day.
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