B

Wts.Meas.Convert

Const

Mech

AC

1

2

DC

Array 2%

Load 4%

24v

DC 24 V

Ham

OTA

Solar

Misc

Notes

AC 1

Wire Size by Current Draw of Total Load - Best practice never exceed 80% of rating. i.e: Draw is 15 amps, use 20 amp circuit. Note: wire run over 300ft,consider voltage drop. Use no aluminum wire to wire receptacles, switches or appliances. Wire Size / AWG. Aluminum Wire Max Current Copper Wire Max Current 0000 gauge 200 amps 253 amps 000 gauge 175 amps 214 amps 00 gauge 150 amps 186 amps 0 gauge 125 amps 163 amps 2 gauge 100 amps 119 amps 4 gauge 60 amps 89 amps 6 gauge 40 amps 65 amps 8 gauge N/A 48 amps 10 gauge N/A 30 amps 12 gauge N/A 20 amps 14 gauge N/A 15 amps Conductor Sizes for Service Feeders - 120/240v,3 Wire,Single-Phase home. Copper Aluminum Service Amps 4g 2g 100 3g 1g 110 2g 1/0 125 1g 2/0 150 1/0 3/0 175 2/0 4/0 200 3/0 250 225 4/0 300 250 250 350 300 350 500 350 400 600 400

Check local and National Electrical Code regulations or contact a qualified electrician. Basic wire sizing guide for US 120 and 240 volts # = American Wire Gauge (AWG), the lower the number the larger the wire guage. 'Service cable' is usually single #4 wire and up). Typically 15-30 amp can safely handle 95% to 100% of it's max rating for an hour. Known safe capacity (NEC) for 100% 'on' time circuits is 80% of load. (air conditioner,ballasts) Basic sheathed xx/2 and xx/3 cable available 6 gauge. Usually insulated" #8 + wire is stranded (Service cable). #4 and above = Cable 1/0 and 2/0 are Service cable Larger than #8 or #6 ,buy 'service type' cable. 2 problems on long runs :high cost , cable may not fit appropriately-sized breaker. Put ballast on 240V when 2400+ watts of lightpower on single circuit. 120V (US) (@ 80% max load) - (50ft run or less) Gauge Amps Watts #16 9 1080 #14 12 1440 #12 16 1920 #10 24 2880 #8 32 3840 #6 40 4800 #4 48 5760 240V (US) (@ 80% max load) - (50ft run or less) Gauge Amps Watts #16 9 2160 #14 12 2880 #12 16 3840 #10 24 5760 #8 32 7680 #6 40 9600 #4 48 11520

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