KRPS Delay on Make Series - Delay On Make Timer

Littelfuse Delay on Make Relays
Roll Over to Zoom
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 (Delay on Make)
Upon application of the input voltage, the dime delay begins. The output relay is de-energized before and during the time delay. At the end of the time delay, the put energizes and remains energized until input voltage is removed.
Reset: Removing input voltage resets the time delay and output.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Storage Temperature (F/C)Time Delay RangeSample capableCompare
KRPSD21M12 to 48VDCSPDT-40° to 80°C (-40°F to 176°F)0.1 - 10s onboard adjustableNo
KRPSA24M24 to 240VAC/DCSPDT-40° to 85°C (-40°F to 185°F)0.1 - 10m onboard adjustableNo
KRPSD22M12 to 48VDCSPDT-40° to 80°C (-40°F to 176°F)1 - 100s onboard adjustableNo
KRPS4160MM120VACSPDT-40° to 85°C (-40°F to 185°F)60m fixedNo