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Blue Sea ML-RBS 7700

Model 7700

Magnetic-latching remote battery switch, 500 A continuous (12 V). Switches up to 300 A under load; zero current draw in either resting state; manual override knob with lock-off for servicing.

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Blue Sea ML-RBS 7700
Blue Sea ML-RBS 7700 · 2 terminals
01 — Wiring diagram

How the ML-RBS is wired

Blue Sea ML-RBS 7700 wiring diagram WIRING DIAGRAM Blue Sea ML-RBS 7700 wiring diagram System bus Positive and negative rails ML-RBS Blue Sea Systems · 7700 A B crimp.studio Terminal map · no standalone feed to size
Blue Sea ML-RBS 7700 wiring diagram, positive and negative connections between the system bus and the unit, plus A, B.

The run drawn here is the reference topology for this part. Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. Confirm your own run length, routing and terminations before ordering — open this part in the designer to size it against your actual system.

02 — Reference run

What size cable and fuse does the ML-RBS need?

There is no standalone feed to size here: this part either has no positive current-carrying terminal or declares no continuous draw or rated output of its own, so a lone cable number would really be its terminal rating. Its cables are sized by the circuits they serve — use the terminal map and the complete-system fit check.

03 — Catalog specification

Blue Sea ML-RBS 7700 specifications and terminal map

Terminal map

TerminalPolarityDirectionRating
Aneutralinput500 A
Bneutraloutput500 A
04 — Supporting parts

What else you need to wire the ML-RBS

  • Terminations matched to each catalog terminal
  • Strain relief and terminal protection for the installation
  • Connection hardware selected from the complete system topology

Start from this part

Open the canvas with the ML-RBS already placed, then wire the rest of the system around it. Nothing to install and no sign-up — the project is saved in this browser, and you can download the file whenever you want it.

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05 — Method & provenance

What is known, assumed, and computed.

Catalog profile

The manufacturer, model, ratings and terminal map are maintained as planning data in Crimp's component catalog. Confirm the current manufacturer manual, exact revision and installed nameplate before ordering or wiring.

Engine reference

Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. The published conductor, fuse and voltage-drop result uses the visible reference length and current basis; it is not a universal installation prescription.

Read the complete methodology →
06 — Related components

Alternatives to the ML-RBS

Browse all distribution profiles →