Standard Size Panel boards,
Disconnect Circuit Breakers

PANEL BOARDS STD SIZES (amps)

SINGLE-PHASE, 3-WIRE SYSTEMS (amps)

40 100 150 225 400
70 125 200 300 600


THREE-PHASE, 4-WIRE SYSTEMS (amps)

60 150 225 400
125 200 300 600

DISCONNECTS STD SIZES (amps)

30 200 800 1600
60 400 1200 1800
100 600 1400 2000

CIRCUIT BREAKERS & Fuses (amps)

15 35 60 100 175 300 500
20 40 70 110 200 350 600
25 45 80 125 225 400 700
30 50 90 150 250 450 800