KSDB Series - Delay On Break Timer

Series: KSDB
Questions? Contact Littelfuse Support
External overview image
Roll Over to Zoom
Disclaimer Notice

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 KSDB 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. This series is designed for popular AC and DC voltages. 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 (Delay-on-Break)
Input voltage must be applied before and during timing. Upon closure of the initiate switch, the output energizes. The time delay begins when the initiate switch is opened. The output remains energized during timing. At the end of the time delay, the output de-energizes. The output energizes if the initiate switch is closed when input voltage is applied.
Reset: Reclosing the initiate switch during timing resets the time delay. 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		Storage Temperature (F/C)Time Delay RangeDimensionsStockSamplesCompare
KSDB1110MP12 V dcNO - closed before and during timing-40° to 80°C (-40° to 176°F)10 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB1115SP12 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)15 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB1120SP12 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)20 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB113MP12 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)3 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB113SP12 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)3 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB120P12 V dcNO - closed before and 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
KSDB134P12 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)1 - 100 m onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB2115S24 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)5 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB22024 V acNO - closed before and 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
KSDB23124 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)1 - 100 s onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB314SP24 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)4 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB315SP24 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)5 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB324N24 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)1 - 100 m externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB330N24 V dcNO - closed before and during timing-40° to 85°C (-40° to 185°F)0.1 - 10 s onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB4120M120 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)20 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB4160S120 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)60 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB4190M120 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)90 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB431120 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)1 - 100 s onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB61150S230 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)50 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
KSDB631230 V acNO - closed before and during timing-40° to 85°C (-40° to 185°F)1 - 100 s onboard adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
KSDB113MP SOLID STATE TIMER RoHS No 09/07/2021 PbFree No 09/07/2021 CoC_RoHS9_KSDB113MP REACH211_Declaration_(Contain)_KSDB113MP Yes
09/07/2021		 Contains
KSDB324N SOLID STATE TIMER RoHS No 07/19/2019 PbFree No 07/19/2019 CoC_RoHS9_KSDB324N REACH_SVHC Declaration (Contain)_KSDB324N Yes
07/19/2019		 Contains
KSDB4120M SOLID STATE TIMER RoHS No 04/17/2019 PbFree No 04/17/2019 CoC_RoHS9_KSDB4120M Yes
04/17/2019
If the product environmental information that you are looking for does not appear in this tab,
please complete the Product Environmental Information Request Form.