Toshiba 4400 Series - D.3 - Output;Bypass Cable Size for 3-Phase;4-Wire + G

122
4400 Series Installation and Operation Manual – 64527-008
Vin, Vout, Vbyp
3P/4W+G
15kVA
(AWG)
20kVA
(AWG)
25kVA
(AWG)
30kVA
(AWG)
50kVA
(AWG)
80kVA
(AWG)
400/227V Phase #8 #8 #6 #4 #1 3/0
Neutral #6 #4 #2 #1 4/0 400 kcmil
415/240V Phase #8 #8 #6 #4 #1 3/0
Neutral #6 #4 #3 #2 4/0 400 kcmil
480/277V Phase #10 #8 #6 #4 #2 2/0
Neutral #6 #4 #3 #2 2/0 300 kcmil
600/347V Phase #12 #10 #8 #8 #4 1/0
Neutral #8 #6 #4 #4 1/0 4/0
1 – Cable sizing based on Table 310.16 Allowable Ampacities of Insulated Conductors in Conduit, for
75 °C Copper conductors; National Electrical Code 2008 ed.
D.3 – Output/Bypass Cable Size for 3-Phase/4-Wire + G
TABLE D.3 – RECOMMENDED MINIMUM OUTPUT/BYPASS CABLE SIZE FOR 3-PHASE/4-WIRE + G
1
Vin, Vout, Vbyp
3P/4W+G
15kVA
(AWG)
20kVA
(AWG)
25kVA
(AWG)
30kVA
(AWG)
50kVA
(AWG)
80kVA
(AWG)
208/120V (no
xFMR)
Phase #4 #3 #2 #2 4/0 500 kcmil
Neutral #2 #2 #2 #2 250 kcmil 2 x 350 kcmil
220/127V Phase #6 #4 #2 #2 4/0 500 kcmil
Neutral #2 #2 #2 #2 250 kcmil 2 x 350 kcmil
230/133V Phase #6 #4 #3 #2 3/0 500 kcmil
Neutral #3 #2 #2 #2 250 kcmil 2 x 350 kcmil
240/139V Phase #6 1/0 #3 #2 3/0 350 kcmil
Neutral #2 #2 #2 #2 250 kcmil 2 x 4/0
380/220V Phase #10 #8 #6 #4 #1 3/0
Neutral #6 #6 #2 #2 4/0 400 kcmil
400/227V Phase #10 #8 #6 #4 #2 3/0
Neutral #6 #4 #3 #2 3/0 350 kcmil
415/240V Phase #10 #8 #8 #6 #2 2/0
Neutral #6 #4 #2 #2 3/0 350 kcmil
480/277V Phase #10 #8 #8 #6 #3 2/0
Neutral #8 #6 #4 #3 2/0 300 kcmil
600/347V Phase #12 #10 #8 #6 #4 #1
Neutral #8 #6 #6 #4 1/0 4/0