What does Elci stand for?
As marinas upgrade their facilities, they will be required by building code to add Equipment Leakage Circuit Interrupter (ELCI) ground fault protection breakers to shore power receptacles.
What is the difference between an Elci and a GFCI?
A "GFCI" (Ground Fault Circuit Interrupter) is essentially the same as an "ELCI", but for the most part differ in trip threshold of leakage current and/or circuit voltage. A "GFCI" indicates that "Personnel" protection is being provided.
What is an Elci on a boat?
The new ELCI-protected breakers will trip, turning off power, if the boat incorrectly leaks amperage or too much amperage is consumed. Newly built boats and older boats upgraded to current ABYC standards include ground fault protection with an onboard ELCI (sometimes known as an RCD – Residual Current Detector).
What is Elci on a hanse?
An ELCI monitor on a US-built boat. The device on your Hanse, (an “RCD” or residual current device) is providing the same protection at slightly different levels of 22 mA and 40 amps respectively.

How does an Elci work?
ELCI Breakers detect amperage difference (imbalance) between the hot (black) wire and the neutral (white) wire and trip if there is a significant difference (leakage) between power going to the boat (hot wire) and that coming back (neutral wire) from the boat to shore power.
What is the difference between Elci and GFCI?
An ELCI monitors all the power going to a boat (if it's mounted in a pedestal) or coming from shore (if it's mounted on the boat) and ensures the same amount of current is returning on neutral as delivered on hot. A GFCI protects an individual outlet or circuit.
What is an Equipment Leakage Circuit Interrupter?
ALCI (Appliance Leakage Current Interrupter) — A component device on electrical appliances, ALCIs are similar to GFCIs, as they are designed to interrupt the circuit when a ground fault current exceeds 6 mA.
Are GFCI outlets required on a boat?
In practice, most builders of recreational boats end up providing GFCI protection for all of the AC receptacles on the boat, but standards only require it in the areas identified here. You would not necessarily need GFCI protection in a sleeping cabin. GFCI plugs are the exactly same for home and marine applications.
Does heat trace need to be GFCI protected?
The NEC requires all heat tracing to be protected against ground faults with a couple of exceptions noted in Sec. 427.22. There is big a difference between the ground-fault circuit interrupters (GFCIs) that are used for personnel and equipment protection.
Will a GFCI trip on overcurrent?
A GFCI breaker in a panel will trip, however, because it combines both overcurrent and GFCI protection in one device—and the overcurrent protection part will cause it to trip.
Which is better AFCI or GFCI?
The AFCI breakers are more preferred than its receptacles. The GFCI usually prevents electrocution from the connected load. The AFCI usually protects from arcs in branching circuits. It protects from accidents that happen outside the walls.
Does a GFCI detect current leakage?
Usually, GFCIs function by detecting when the current is flowing along an unintended path (e.g., through water or a person). The instant the GFCI detects there is even the slightest of current leakage as low as 0.005 amps, it trips right away.
What is a leakage protection switch?
A leakage circuit breaker is a switch that can automatically act when the leakage current in the circuit exceeds a predetermined value.
Do I need GFCI on every outlet?
The NEC requires GFCIs on all exterior and bathroom receptacles (another term for outlets). GFCIs are also required on all receptacles serving kitchen countertops. In laundry rooms and utility rooms, GFCIs should be installed on outlets within six feet of sinks, washing machines, and water heaters.
Does outlet under sink need to be GFCI?
The National Electrical Code requires outlets be installed in a kitchen that has a sink 12 inches wide and 24 inches deep. That outlet must also be within 2 feet of the sink. Bathrooms must have at least one electrical outlet, it must be GFCI, and it must be within 3 feet of the sink.
How do you find a ground fault on a boat?
A better way to test for ground integrity is to connect the shore cord to the boat and bring the shore plug back to a position near the electrical panel. With all on-board AC sources turned off, use an Ohm meter to check that the ground prong is solidly connected to the boat's safety ground system.
What are the 3 types of GFCI?
Three types of GFCIs are commonly used in homes – the GFCI outlet, the GFI circuit breaker and the portable GFCI.
Do I need both GFCI and AFCI?
In 2014, the National Electrical Code® (NEC®) introduced AFCI requirements for kitchens and laundry rooms. The code had previously required that these locations needed only GFCI protection, but for added safety they are now required to have both AFCI and GFCI protection.
Which is better AFCI or GFCI?
The AFCI breakers are more preferred than its receptacles. The GFCI usually prevents electrocution from the connected load. The AFCI usually protects from arcs in branching circuits. It protects from accidents that happen outside the walls.
How do I know if my outlet is GFCI?
What Is a GFCI Receptacle? You can tell if a receptacle is a GFCI one or not by the way it looks. The GFCI is integrated into an electrical outlet and it typically has a red (or possibly white) reset button on the outlet's faceplate. The outlet monitors how much energy is going into it when in use.
What is causing the ELCI Breaker to Trip?
Reverse Y-splitters (adapters that combine two 30 amp receptacles into one 50 amp or two 50 amp into one 100 amp) are a known source of ELCI-protected breaker problems and unless specifically designed for ELCI-protected power, will likely not work.
What is an ELCI on a boat?
Newly built boats and older boats upgraded to current ABYC standards include ground fault protection with an onboard ELCI (sometimes known as an RCD – Residual Current Detector). In the past, a boat’s A/C breakers only protected wiring and cables from over-amperage problems. Onboard ELCI breakers now add electrical leakage protection to the boat.
Why put an ELCI breaker on a boat?
Installing an ELCI breaker on your boat now, will not only help ensure that you won’t have unexpected problems while cruising, but will also make for safer boating. If there are any electrical leakage issues on your boat, an ELCI will bring them to your attention and will do so at your schedule.
Why are ELCI breakers needed?
ELCI Breakers are safety devices to prevent Electric Shock Drownings. While more dangerous in fresh water, drownings happen in both fresh and saltwater when people become better electrical conductors of leakage A/C current than the surrounding water. Faulty dock or boat wiring is a common cause of dangerous electrical power in waters around docks and marinas. The danger only becomes known when someone enters the water and is immobilized by the electrical shock. These tragedies grow when rescuers enter the same dangerous waters in an attempt to help, and become victims as well.
What is ELCI in marinas?
As marinas upgrade their facilities, they will be required by building code to add Equipment Leakage Circuit Interrupter (ELCI) ground fault protection breakers to shore power receptacles.
Where is the ELCI breaker located?
Instead, they have one ELCI-protected breaker located at the power distribution panel providing power for a section of the marina. Any boat leaking excessive amperage within that section of the marina will trip the single ELCI-protected breaker, ...
How much does an isolation transformer cost?
Transformers are available in a variety of different voltages and amperages ranging in price from $1,000 to $4,000.
How do ELCI breakers work?
An ELCI breaker works a lot like a GFCI breaker you have at home. A GFCI trips at 5 milliamps of current detected over the ground line and must be reset.
What is stray current?
When you plug a boat into shore power you are tying all the electrical systems together via the green ground wire. The ground wire is daisy chained to all the boats on the same line via. The ground wire is terminated at the power source being the transformer that serves all the boats on the line.
