Wire Size For 200 Amp Electrical Service

The size of your house s electrical service determines how many appliances you can run at one time.

Wire size for 200 amp electrical service.

Early services may provide 60 amps of power while large houses built today may have 200 amps or more of power. The southwire company 500 ft. For 215a or less you need to go to 250 000 circular mil wire. Nec requires a minimum of 100 amp 3 wire service for a single family dwelling unit.

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. 2 2 2 4 wire service wire 150 ft. 200 service entrance wires wire the home depot store finder. 2 2 2 4 al ser the southwire company 500 ft.

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. A 200 amp service allows you to run multiple appliances at once while a 60 amp service won t. 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. 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.

Service entrance wires 200 service entrance wires 4 awg feeder cable. Homes with 60 amp or 100 amp service often require an electrical service update during major remodeling or expansion projects.