Not every multi-circuit RV fuse holder uses one common positive supply. The Egis 8037 has six individually isolated input-to-output fuse circuits. The 8045 and 8046 are compact inline distribution blocks with four and eight outputs respectively. That distinction matters when replacing an existing accessory fuse holder or planning how separate power supplies remain isolated.
Identify independent versus shared-feed fuse protection
Egis 8037 — 6 circuits
Six inputs remain electrically independent unless an approved separate connection changes the installation.
Egis 8045 — 4 circuits
Compact shared-feed block, with a single-side wire-entry layout.
Egis 8046 — 8 circuits
Compact shared-feed block, with a single-side wire-entry layout.
Compare 8037, 8045 and 8046
| Egis part | Number of circuits | Supply arrangement | Best identification clue |
|---|---|---|---|
| 8037 | 6 | Six independent fused input/output pairs | Each branch has its own feed; not a shared positive bus |
| 8045 | 4 | Common-feed inline distribution block | Compact four-fuse format with one-side wire entry |
| 8046 | 8 | Common-feed inline distribution block | Compact eight-fuse format with one-side wire entry |
The RT inline family is rated for nominal 12V/24V DC, with a manufacturer-published voltage range of 0–60V DC (subject to fuse rating). The factory specifies 100A maximum continuous current for the complete block and 30A maximum continuous current per branch. These limits are distinct from the amperage printed on an individual replaceable ATO-type fuse. Never raise a fuse size beyond the installed wire and circuit rating.
Egis specifies a clear latching cover, stainless self-locking attachment hardware and included circuit identification labels for the RT inline range. The compact 8045 and 8046 models are designed for tight installation spaces; the 8037 is for cases where the fused supplies must stay separate.
Matching product photos and exact model numbers
Review the actual product pictures and model numbers before ordering. These listings are for the corresponding Egis part numbers on UsedRVParts; check each product for availability. Used RV parts can be viewed or collected by appointment in Kelowna.
Original Egis inline-model reference
The manufacturer provides its RT Series Inline Fuse Blocks brochure (PDF), which includes the 8037, 8045 and 8046 model listings, construction details and actual product dimensions. The Egis fuse-block product range also distinguishes independent-input blocks from compact inline shared-feed models.