Interval Timer Series - Interval Timer

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 TSD7 Series utilizes only two terminals connected in series with the load. Interval timing mode period is achieved by using a small portion of the AC sine wave allowing sufficient voltage for circuit operation. It can be used as an interval timer to control or pulse shape the operation of contactors, solenoids, relays, and lamp loads. The TSD7 Series can be wired to delay on the break of a switch for energy saving fan delays. 

Operation (Interval) Upon application of input voltage, the output energizes and the time delay begins. The output remains energized throughout the time delay. At the end of the time delay, the output de-energizes and remains de-energized until power 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 RangeDimensionsStockCompare
TSD7412S120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)2 s fixed2 H x 2 W in. (50.8 x 50.8 mm)Check
TSD7414M120VACNO closed during timing-40° to 85°C (-40°F to 185°F)4m fixed2.00 x 2.00 x 1.21 in. (50.8 x 50.8 x 30.7mm)
TSD7421120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)1 - 100 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)Check
TSD7423120 V acNO - closed during timing-40° to 85°C (-40° to 185°F)0.1 - 10 m externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)Check
TSD7424120 V acNO - closed 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)Check
TSD761120S230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)120 s fixed2 H x 2 W in. (50.8 x 50.8 mm)Check
TSD761180S230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)180 s fixed2 H x 2 W in. (50.8 x 50.8 mm)Check
TSD7611S230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)1 s fixed2 H x 2 W in. (50.8 x 50.8 mm)Check
TSD7621230 V acNO - closed during timing-40° to 85°C (-40° to 185°F)1 - 100 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)Check
To request product environmental information, please complete the Product Environmental Information Request Form.