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Littelfuse KRDM Time Delay Relays Series

12 variants · Littelfuse

About the Littelfuse KRDM Time Delay Relays Series

The Littelfuse KRDM Time Delay Relays Series series groups 12 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. 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 KRDM Time Delay Relays Series part numbers are active and orderable.

Select a variant by

Delay time
0.1 Min to 10 Min · 0.1 Sec to 10 Sec · 1 Min to 100 Min · Fixed, 0.2 Sec · Fixed, 5 Min · Fixed, 10 Sec · Fixed, 15 Min · Fixed, 30 Sec · Fixed, 45 Sec
Supply voltage
12 VDC · 24 VAC/DC · 24 VDC · 120 VAC · 230 VAC
Timing adjustment method
External Resistor · Fixed · Screwdriver Slot

Shared specifications

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

Variant comparison

ParameterKRDM1110SKRDM433KRDM6115MKRDM1130SKRDM215MKRDM220
Delay timeFixed, 10 Sec0.1 Min to 10 MinFixed, 15 MinFixed, 30 SecFixed, 5 Min0.1 Sec to 10 Sec
Supply voltage12 VDC120 VAC230 VAC12 VDC24 VAC/DC24 VAC/DC
Timing adjustment methodFixedExternal ResistorFixedFixedFixedScrewdriver Slot

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

All variants