TDUS/TDUSH/TDUSL Series - Dedicated Single-Shot Delay-On-Make Timer

Littelfuse Single Shot Relays
The TDUS Series combines digital timing circuitry with universal voltage operation. Voltages of 24 to 240VAC and 12 to 24VDC are available in three ranges. The TDUS 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 TDUS Series an excellent choice for process control systems and OEM equipment.


Operation (Single Shot)
Input voltage must be applied before and during timing. Upon momentary or maintained closure of the initiate switch (leading edge triggered), the output energizes for a measured interval of time. At the end of the delay, the output de-energizes. Opening or reclosing the initiate switch during timing has no affect on the time delay. The output will energize if the initiate switch is closed when input voltage is applied.
Reset: Reset occurs when the time delay is complete and the initiate switch is opened. Loss of input voltage resets the time delay and output.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Storage Temperature (F/C)Time Delay RangeSample capableCompare
TDUS3000A24 to 120VACNO closed during timing-40° to 85°C (-40°F to 185°F)1 - 1 023s 1s incrementsNo
TDUS3001A100 to 240VACNO closed during timing-40° to 85°C (-40°F to 185°F)1 - 1 023s 1s incrementsNo
TDUS3002A12 to 24VDCNO closed during timing-40° to 85°C (-40°F to 185°F)1 - 1 023s 1s incrementsNo
TDUSH3001A100 to 240VACNO closed during timing-40° to 85°C (-40°F to 185°F)0.1 - 102.3m in 0.1m incrementsNo
TDUSL3000A24 to 120VACNO closed during timing-40° to 85°C (-40°F to 185°F)0.1 - 102.3s in 0.1s incrementsNo