TDUI / TDUIH / TDUIL Series - Interval Timer

Littlefuse Interval Relays
The TDUI Series combines digital timing circuitry with universal voltage operation. Voltages of 24 to 240VAC and 12 to 24VDC are available in three ranges. The TDUI Series offers DIP switch selectable time delays ranging from 0.1 seconds to 102.3 minutes in three ranges. Its 1A rated output, ability to operate on multiple voltages, and wide range of switch selectable time delays make the TDUI Series an excellent choice for process control systems and OEM equipment.


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.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Storage Temperature (F/C)Time Delay RangeSample capableCompare
TDUI3000A24 to 120VACNO closed during timing-40° to 85°C (-40°F to 185°F)1 - 1023s in 1s incrementsNo
TDUIH3002A12 to 24VDCNO closed during timing-40° to 85°C (-40°F to 185°F)0.1 - 102.3m in 0.1m incrementsNo
TDUIL3001A100 to 240VACNO closed during timing-40° to 85°C (-40°F to 185°F)0.1 - 102.3s in 0.1s incrementsNo
TDUIL3002A12 to 24VDCNO closed during timing-40° to 85°C (-40°F to 185°F)0.1 - 102.3s in 0.1s incrementsNo