4 variants · Littelfuse
The Littelfuse Littelfuse 777H 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, operating temperature of 70 °C and package of Bulk. Variants differ by delay time, supply voltage and trip range, so you can match the exact delay time your application requires using the selection guide below. All listed Littelfuse 777H Series part numbers are active and orderable.
| Parameter | 777-HRG-P2 | 777-HVR-KW/HP-P2 | 777-HVR-LR-P2 | 777-HVR-SP |
|---|---|---|---|---|
| Delay time | 0 to 999 s | 0 to 999 s | 0 to 999 s | 0.2 to 500 s |
| Supply voltage | 200 to 480VAC | 340 to 480VAC | 380 to 480VAC | 340 to 480VAC |
| Trip range | 2–90 A | 2–800 A | 1–800 A | 2–800 A |
Request a quote on any Littelfuse 777H Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.
Littelfuse
Littelfuse
Littelfuse
Littelfuse