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Littelfuse HRIS Series

3 variants · Littelfuse

About the Littelfuse HRIS Series

The Littelfuse HRIS Series series groups 3 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 supply voltage of 24 to 240VAC, 24 to 110VDC. Variants differ by delay time, so you can match the exact delay time your application requires using the selection guide below. All listed Littelfuse HRIS Series part numbers are active and orderable.

Select a variant by

Delay time
0.1 Hrs to 10 Hrs · 0.1 Sec to 10 Sec · 1 Min to 100 Min

Shared specifications

Mounting
Chassis Mount
Package
Bulk
Supply voltage
24 to 240VAC, 24 to 110VDC
Timing adjustment method
Screwdriver Slot
Timing initiate method
Input Voltage
Type
Mechanical Relay

Variant comparison

ParameterHRISW25BHRISW27IHRISW21FT
Delay time1 Min to 100 Min0.1 Hrs to 10 Hrs0.1 Sec to 10 Sec

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

All variants