Recycling Timer Series - Recycling Timer

Series: Recycling 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 TSDR Series is an ON/OFF or OFF/ON recycling timing module designed to control metering pumps, chemical valves, flash lamps, or use in energy saving or duty cycling applications. It may be ordered with both time delays factory fixed, or one delay fixed and the other delay external or onboard adjustable. The TSDR Series is designed for more demanding commercial and industrial applications where small size and accurate performance are required. The factory calibration for fixed time delays is < ±5%. The repeat accuracy, under stable conditions, is 0.5% of the time delay. The TSDR Series is rated to operate over an extended temperature range. Time delays of 0.1 seconds to 1000 minutes are available. The output is rated 1A steady and 10A inrush. The modules are totally solid state and encapsulated to protect the electronic circuitry.


Operation (Recycling - ON Time First)
Upon application of input voltage, the output energizes and the T1, ON time begins. At the end of the ON time, the output de-energizes and the T2, OFF time begins. At the end of the OFF time, the output energizes and the cycle repeats as long as input voltage is applied.
Reset: Removing input voltage resets the output and time delays, and returns the sequence to the T1 ON time.


Operation (Recycling - OFF Time First)
Upon application of input voltage, the T2 OFF time begins. At the end of the OFF time, the T1 ON time begins and the load energizes. At the end of the T1, T2 begins and the load de-energizes. This cycle repeats until input voltage is removed.
Reset: Removing input voltage resets the output and the sequence to T2 OFF time.

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)		Storage Temperature (F/C)Time Delay RangeDimensionsStockSamplesCompare
TSDR215SB18M24 V ac-40° to 85°C (-40° to 185°F)ON: 5 s fixed; OFF time first: 18 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR415SB18M120 V ac-40° to 85°C (-40° to 185°F)ON: 5 s fixed; OFF time first: 18 m fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR4412SA1120 V ac-40° to 85°C (-40° to 185°F)ON time first: 12 s fixed; OFF: 1 - 100 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR442MA2120 V ac-40° to 85°C (-40° to 185°F)ON time first: 2 m fixed; OFF: 10 - 1000 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR4430SA2120 V ac-40° to 85°C (-40° to 185°F)ON time first: 30 s fixed; OFF: 10 - 1000 s externally adjustable2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR610.2SA0.2S230 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.2 s fixed; OFF: 0.2 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR6110SA30S230 V ac-40° to 85°C (-40° to 185°F)ON time first: 10 s fixed; OFF: 30 s fixed2 H x 2 W in. (50.8 x 50.8 mm)CheckOrder
TSDR6412SA1230VAC-40° to 85°C (-40°F to 185°F)ON time first: 12s fixed; OFF: 1 - 100s externally adjustable2.00 x 2.00 x 1.21 in. (50.8 x 50.8 x 30.7mm)
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