Blue Sea Systems
Review the Blue Sea 8100 ELCI Main 30A 120V catalog ratings, AC connection points and installation notes, then add the part to your Crimp diagram.
Open this example as a new project. Use your own parts and cable lengths to make the plan yours.
Opening this part in Crimp starts a new project with the equipment placed on its own. Use the manufacturer documentation to plan its AC connections and protective devices.
The map identifies line, neutral and protective-earth connections. This page does not calculate an AC cable size or protection rating.
Wiring diagram
Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.
Installation notes
Guidance for this model, with sources linked beside the relevant advice.
Verified against the manufacturer's documentation (rev. 980006510 Rev 002; supplementary ELCI bulletin IST-0006 Rev B), checked 2026-10-01. Manufacturer documentation →
The 8100 panel is a 120 V AC, 30 A double-pole shore main with 30 mA leakage trip. It monitors imbalance between current leaving and returning through the AC circuit. It is not a DC breaker, an AC source selector, or a substitute for required branch-circuit GFCI protection.
Connect the shore supply to LINE and the vessel distribution to LOAD, maintaining separate line and neutral poles. Protective earth remains continuous through the grounding bus; never join it to the downstream neutral bus. Panel instructions explain the distinction. Reverse line/load connections or another supply backfeeding LOAD can damage the ELCI.
The manufacturer places the main disconnect within 10 ft of the inlet measured along the conductors; longer runs require additional inlet-side protection. Its 30 A feeder recommendation is 10 AWG under the documented installation conditions. Protect front and rear from water. The panel is not ignition protected and must not be installed where explosive vapors accumulate.
With power present, turn it on and operate TEST. The ELCI bulletin requires a monthly trip test and replacement if the test fails to open the breaker. If it trips in service, disconnect branch loads and identify the circuit causing imbalance rather than bypassing protection. Check reverse-polarity indication before accepting shore power. Keep all alternative AC sources isolated during installation or fault investigation.
Build it out
Add 8100 to your diagram, then connect your batteries, chargers and loads. Crimp calculates cable sizes and checks the connections as you draw.
Every cable you draw there is sized against ABYC E-11, from the same tables as the reference on this page.
Technical reference
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
LINE L
ac-in-l
neutral · input
LINE N
ac-in-n
neutral · input
EARTH IN
ac-in-pe
ground · bidi
LOAD L
ac-out-l
neutral · output
LOAD N
ac-out-n
neutral · output
EARTH OUT
ac-out-pe
ground · bidi
Method & provenance
Manufacturer specifications describe the equipment. Crimp calculates cable results from the circuit and assumptions you enter.
From the maker
Manufacturer, model, ratings and which terminal does what come from the catalog. A newer revision, or the nameplate on the unit in your hand, can say something different — when it does, the nameplate wins.
ABYC E-11
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 run length and the current above are what drive the result. Crimp doesn't know how warm your space gets; draw the cable inside an engine-bay zone on the canvas and it sizes for the heat.
Next step
Open this example as a new project. Add your equipment and cable lengths, then review the sizing and checks for your setup.