Blue Sea Systems
Blue Sea 8100 ELCI Main 30A 120V connections
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.
- Nominal voltage
- 120 V
Connection overview
ELCI 30A 120V connections.
See how this component fits into a system. Use the manufacturer’s installation instructions for the complete connections.
Installation notes
Before you install.
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Verified against the manufacturer's documentation (rev. 980006510 Rev 002; supplementary ELCI bulletin IST-0006 Rev B), checked 2026-10-01. Manufacturer documentation →
What does this panel protect?
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.
How are line, neutral and earth routed?
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.
Where should it be installed?
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.
How is protection verified?
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.
Technical reference
Specifications and terminal map.
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Catalog specification
120VAC 30A double-pole shore main panel with 30mA leakage trip and reverse-polarity indicator. Line and neutral are separate switched poles; protective earth remains separate. This is AC equipment, not a 12V DC fuse panel or a source selector.
- Nominal voltage
- 120 V
Terminal map
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
LINE L
neutral · input
LINE N
neutral · input
EARTH IN
ground · bidi
LOAD L
neutral · output
LOAD N
neutral · output
EARTH OUT
ground · bidi
Sources and sizing method
Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.
Connection overview. This diagram explains the connection arrangement; it does not calculate cable sizes or protection for the installation. Follow the manufacturer’s complete wiring and protection instructions.
Read how the sizing worksNext step
Plan your installation with ELCI 30A 120V.
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