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Littelfuse KRPD Series

4 variants · Littelfuse

About the Littelfuse KRPD Series

The Littelfuse KRPD Series series groups 4 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common mounting of Chassis Mount, package of Bulk and timing initiate method of Input Voltage, Trigger Signal. Variants differ by delay time, supply voltage and timing adjustment method, so you can match the exact delay time your application requires using the selection guide below. All listed Littelfuse KRPD Series part numbers are active and orderable.

Select a variant by

Delay time
0.1 Sec to 10 Sec · Fixed, 5 Sec, 90 Sec · Fixed, 7 Min, 13 Min · Fixed, 75 Sec, 30 Sec
Supply voltage
12 to 48VDC · 24 to 240VAC/DC · 24 VAC · 120 VAC
Timing adjustment method
Fixed · Screwdriver Slot

Shared specifications

Mounting
Chassis Mount
Package
Bulk
Timing initiate method
Input Voltage, Trigger Signal
Type
Mechanical Relay

Variant comparison

ParameterKRPD215S190SMBKRPD417M113MRXDKRPDA175S130SMIKRPDD2121MB
Delay timeFixed, 5 Sec, 90 SecFixed, 7 Min, 13 MinFixed, 75 Sec, 30 Sec0.1 Sec to 10 Sec
Supply voltage24 VAC120 VAC24 to 240VAC/DC12 to 48VDC
Timing adjustment methodFixedFixedFixedScrewdriver Slot

Request a quote on any Littelfuse KRPD Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants