5191
Single-fuse holder for MRBF terminal fuses (30–300 A, 10 kA AIC). Bolts directly onto a battery+ post so the protected conductor starts within the ABYC E-11 §11.10 limit (175 mm). For an MRBF mounted on the battery itself, prefer setting the battery's terminal fuse instead of dropping a separate holder.
Open in Crimp →A sizing result with its assumptions attached.
Sized against ABYC E-11 — the US reference, and what Transport Canada accepts as an alternative to TP 1332 for pleasure craft under 24 m. The Crimp engine applies its ordinary continuous-load headroom, voltage-drop budget, terminal clamp, and standard fuse ladder. The 9.8 ft one-way run is a stated reference, not a universal installation prescription.
The part the engine actually sees.
- Canvas footprint
- 60 × 40 px
Terminal map
| Terminal | Polarity | Direction | Rating |
|---|---|---|---|
| in | positive | input | 300 A |
| out | positive | output | 300 A |
What belongs around it.
- 19.7 ft total of 4/0 AWG (120 mm²) marine cable
- Four 4/0 AWG cable lugs matched to the equipment studs
- 350 A fuse and holder on the positive run
- Heat-shrink, strain relief, and terminal boots sized to the cable
See what it changes in your system
With JavaScript enabled, describe your existing boat, van, or off-grid system here. The model supplies topology; Crimp's engine computes the attachment, resized runs, checks, and supporting basket.