Wire Size For 200 Amp Electrical Service

The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f.

Wire size for 200 amp electrical service. Service entrance wires 200 service entrance wires 4 awg feeder cable. 2 2 2 4 wire service wire 150 ft. National electric code 310 315 specifies electrical services wire conductor sizes of 2 0 for copper and 4 0 for aluminum for use in 120 240 volt 3 wire single phase dwelling services and feeders. Get free shipping on qualified 200 service entrance wires or buy online pick up in store today in the electrical department.

2 2 2 4 al ser service entry electrical cable can be used in wet and dry. That s why you re going to find that not 2 0 wire as you offered bur rather 4 0 will be where you start for aluminum sec cabling if your electrical service size is 200 amps. The size of your house s electrical service determines how many appliances you can run at one time. Early services may provide 60 amps of power while large houses built today may have 200 amps or more of power.

By nec guidelines 4 0 is required for three copper conductors carrying 195a in a tray or conduit at not more than 30 deg c ambient with insulation rated for 60 deg c. 2 2 2 4 al ser the southwire company 500 ft. Keep in mind that manufacturers may produce and certify aluminum wire and mark it right on the wire for ampacities different than the standard tables that we. 200 service entrance wires wire the home depot store finder.

The southwire company 500 ft. Nec requires a minimum of 100 amp 3 wire service for a single family dwelling unit.