KSDU Series - Delay On Make Timer

Littelfuse Delay on Make Relays
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The KSDU Series are encapsulated solid-state, delay-on-make timers that combine digital timing circuitry with universal voltage operation. The KSDU is factory fixed from 0.1s to 10,230s and does not include the DIP switch. These series are excellent choices for process control systems and OEM equipment.

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

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Time Delay RangeSample CapableCompare
KSDU81120024 to 120 VAC/DCNO open during timing1 200s fixedNo
KSDU812024 to 120 VAC/DCNO open during timing20s fixedNo
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