Name: TSD7 Interval Timers Series - Interval Timer
Brand: Littelfuse Inc.

TSD7 Interval Timers Series - Interval Timer

Series: TSD7 Interval Timers

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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 Range	Dimensions	Stock	Samples

TSD7412S	120 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	2 s fixed	2 H x 2 W in. (50.8 x 50.8 mm)	Check	Order
TSD7414M	120VAC	NO closed during timing	-40° to 85°C (-40°F to 185°F)	4m fixed	2.00 x 2.00 x 1.21 in. (50.8 x 50.8 x 30.7mm)
TSD7421	120 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	1 - 100 s externally adjustable	2 H x 2 W in. (50.8 x 50.8 mm)
TSD7423	120 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	0.1 - 10 m externally adjustable	2 H x 2 W in. (50.8 x 50.8 mm)
TSD7424	120 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	1 - 100 m externally adjustable	2 H x 2 W in. (50.8 x 50.8 mm)	Check	Order
TSD761120S	230 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	120 s fixed	2 H x 2 W in. (50.8 x 50.8 mm)
TSD761180S	230 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	180 s fixed	2 H x 2 W in. (50.8 x 50.8 mm)
TSD7611S	230 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	1 s fixed	2 H x 2 W in. (50.8 x 50.8 mm)
TSD7621	230 V ac	NO - closed during timing	-40° to 85°C (-40° to 185°F)	1 - 100 s externally adjustable	2 H x 2 W in. (50.8 x 50.8 mm)