RS Series - Recycling Timer

Series: RS
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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 RS Series is a solid-state, encapsulated, recycling timer designed for tough industrial environments. It is used by many testing labs as a life cycle tester; by others as a cycle controller. The RS Series has separate DIP switch adjustments for the on delay and the off delay. These make accurate adjustment possible the first time, every time. Time delays of 0.1 seconds to 1023 hours are available in 4 ranges.


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 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 output energizes and the T1 ON time begins. At the end of the ON time, the output de-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 OFF time.

Product Literature

For Technical Questions

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Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Storage Temperature (F/C)Time Delay RangeDimensionsStockSamplesCompare
RS1A1112 V dc-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 s in 0.1 s increments; OFF: 0.1 - 102.3 s in 0.1 s increments3 H x 2 W in. (76.7 x 51.3 mm)
RS2B4424 V ac-40° to 85°C (-40° to 185°F)ON: 1 - 1023 h in 1 h increments; OFF time first: 1 - 1023 h in 1 h increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4A11120 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 s in 0.1 s increments; OFF: 0.1 - 102.3 s in 0.1 s increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4A12120 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 s in 0.1 s increments; OFF: 0.1 - 102.3 m in 0.1 m increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4A13120 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 s in 0.1 s increments; OFF: 1 - 1023 m in 1 m increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4A22120 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 m in 0.1 m increments; OFF: 0.1 - 102.3 m in 0.1 m increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4A24120 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 m in 0.1 m increments; OFF: 1 - 1023 h in 1 h increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4A33120 V ac-40° to 85°C (-40° to 185°F)ON time first: 1 - 1023 m in 1 m increments; OFF: 1 - 1023 m in 1 m increments3 H x 2 W in. (76.7 x 51.3 mm)
RS4B12120 V ac-40° to 85°C (-40° to 185°F)ON: 0.1 - 102.3 s in 0.1 s increments; OFF time first: 0.1 - 102.3 m in 0.1 m increments3 H x 2 W in. (76.7 x 51.3 mm)
RS6A13230 V ac-40° to 85°C (-40° to 185°F)ON time first: 0.1 - 102.3 s in 0.1 s increments; OFF: 1 - 1023 m in 1 m increments3 H x 2 W in. (76.7 x 51.3 mm)CheckOrder
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