Marine Electrical Wire Size Calculator

Under no circumstances should this calculator be used as the sole basis for selecting wire size or circuit protection.

Marine electrical wire size calculator.

For ac use only the first calculator is needed as the voltage drop in ac circuits as a function of wire lengths found in a boat is negligible. Today we are here with another comprehensive copper and aluminum wire size calculator as we have discussed in detail the topic of how to calculate the proper wire size for electrical wiring. The wire size calculator will give you a very simple and quick solution to the problem of calculating the size of wires and cables for pump applications in golf courses landscape projects and agriculture. Now you can take the advantage of this calculator to do this job j you can also check the classical wire cable size calculator in awg calculating wire cable size formula for single phase circuits.

Electrical wire size calculator. Note that most so called marine grade wire is rated at 105 c. This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps voltage distance and load. And the calculator providing the largest wire is the required wire.

There are many factors to consider before choosing the proper gauge. This technical brief distills the information on these charts to a more manageable size for installers and boatowners alike. The requirements of the national electrical code nec and local codes must always be followed. The volatge drop calculator will allow you to find the percentage of voltage drop as well as the current delivered at the end of the wire run.

Our calculator yields results that are within code in most locations however we advise you to check your local electrical code. Finally note that the amp capacity ampacity of the wire curtails using very short lengths of wire for large current flows as shown by the flat tops of the 10 chart areas. This calculator is not a substitute for the expertise of a marine electrical professional. Nfpa 70 national electrical code table 310 15 b 16 17.

This simple equation allows you to calculate the voltage drop for a circuit of any length and any current flow if you know the resistance of the wire. This website provides a wire size calculator voltage drop calculator wire ampacity charts and more. In addition the dc wire selection chart shown below assumes a wire insulation rating of 105 c. This should be used as a reference only.

Please check with your electrical inspector or a licensed electrician for the proper wire size. In the boating world it is suggested 3 max voltage drop for conductors providing power to panels and switchboards navigation lighting bilge blowers main dc feeders and any other circuit where.