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Littelfuse HRDI Series

2 variants · Littelfuse

About the Littelfuse HRDI Series

The Littelfuse HRDI Series series groups 2 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 HRDI Series part numbers are active and orderable.

Select a variant by

Delay time
10 Sec to 1000 Sec · Fixed, 7 Sec
Supply voltage
12 VDC · 120 VAC
Timing adjustment method
Fixed · Screwdriver Slot

Shared specifications

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

Variant comparison

ParameterHRDI422HRDI117S
Delay time10 Sec to 1000 SecFixed, 7 Sec
Supply voltage120 VAC12 VDC
Timing adjustment methodScrewdriver SlotFixed

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

All variants