Single Shot Timer Series - Single Shot Timer

Series: Single Shot Timer
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The KSDS Series is ideal for applications that require momentary start interval timing including dispensing, exposure timing, or pulse shaping. This series is available for both AC and DC voltages. This series is designed for general purpose commercial and industrial applications where a small, cost effective, reliable solid-state timer is required. The factory calibration for fixed time delays is within 5% of the target time delay. The repeat accuracy, under stable conditions, is 0.5% of the selected time delay. Time delays of 0.1 seconds to 1000 minutes are available in 6 ranges. The output is rated 1A steady and 10A inrush. The modules are totally solid state and encapsulated to protect the electronic circuitry.


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 not 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.

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		Time Delay RangeDimensionsStockSamplesCompare
KSDS1115SP12 V dcNO - closed during timing5 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDS23024 V acNO - closed during timing0.1 - 10 s onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDS320P24 V dcNO - closed during timing0.1 - 10 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDS415M120 V acNO - closed during timing5 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDS420120 V acNO - closed during timing0.1 - 10 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
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