Interval Timers Series - Interval Timers

Series: Interval Timers
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The THD2 Series combines accurate timing circuitry with high power solid-state switching. It can switch motors, lamps, and heaters directly without a contactor. You can reduce labor, component cost, and increase reliability with these small, easy-to-use THD2 Series timers.


Operation (Interval)
Upon application of input voltage, the time delay begins. The output energizes during the time delay. At the end of the time delay, the output de-energizes and remains de-energized until input voltage is removed.
Reset: Removing input voltage resets the time delay and the output.

Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Output
Form		Storage Temperature (F/C)Time Delay RangeDimensionsStockSamplesCompare
THD2C420120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)0.1 - 10 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
THD2C423120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)0.1 - 10 m externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
THD2C433120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)0.1 - 10 m onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
THD2C620230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)0.1 - 10 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
THD2C633230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)0.1 - 10 m onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
THD7421A120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)1 - 100 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
THD7621C230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)1 - 100 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
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