Name: KRPSA Alternating Timers Series - Alternating Relay
Brand: Littelfuse Inc.

KRPSA Alternating Timers Series - Alternating Relay

Series: KRPSA Alternating 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 KRPS Series is a factory programmed time delay relay available with 1 of 15 functions and measures only 2 inches square. The KRPS offers a wide range of fixed, onboard, or externally adjustable time delays. The output relay contacts offer a full 10A rating with complete isolation. Its microcontroller timing circuit provides excellent repeat accuracy and stability. Encapsulation protects against shock, vibration, and humidity. The KRPS Series is a cost effective approach for OEM applications that require small size, isolation, accuracy, and long life. Special time ranges and functions are available.

Operation (Alternating)
Input voltage must be applied at all times for proper operation. The operation begins with the output relay de-energized. Closing S1 enables the next alternating operation. When S1 opens (trailing edge triggered), the time delay begins. At the end of the time delay, the output energizes and remains energized until S1 is (re-closed and) re-opened. Then the output relay de-energizes and remains until S1 opens again. Each time S1 opens the time delay occurs and the output transfers.
Reset: Removing input voltage resets the output and the time delay.

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

KRPSA10.1SFT	24 or 240 V ac/dc	SPDT	-40° to 85°C (-40° to 185°F)	0.1 s fixed	2 H x 2 W in. (50.8 x 50.8 mm)	Check	Order
KRPSD10.1SF	12 or 48 V dc	SPDT	-40° to 85°C (-40° to 185°F)	0.1 s fixed	2 H x 2 W in. (50.8 x 50.8 mm)	Check	Order