Toshiba 4400 Series Installation And Operation Manual page 59

TABLE 9.3: RECOMMENDED MINIMUM CABLE SIZE & TIGHTENING TORQUE FOR 80-100KVA UPS FOR 120/208V IN,
Block Number
AC Input
(A, B, C)
AC Input Neutral (N)
2
AC Output Neutral (N)
AC Output
(A, B, C)
Secondary Input
(A, B, C)
Secondary Neutral
(N)
2
Battery Terminals
(+/-)
1
One battery string. (Consult factory if using more than one battery string.)
1
Size neutral cable appropriate to actual load type: balanced, unbalanced, non-linear.
2
See Appendix D – Input/Output Cabling Guide, for current calculations for different input and output transformer
combinations. Use these values to determine the correct power cable size per the 2014 National Electrical Code (Ref.
Table 310.15(B)(16))
Lug tightening torque is the same as given in Tables 9.1 through 9.3.
4400 Series Installation and Operation Manual – 64527-008
Cable Size (Min-Max) 75 °C Copper Wire in Conduit
Terminal Lug Capacity
(2) x (1/0 – 600 kcmil)
(2) x (1/0 – 600 kcmil)
(2) x (1/0 – 600 kcmil)
(2) x (1/0 – 600 kcmil)
(2) x (1/0 – 600 kcmil)
(2) x (1/0 – 600 kcmil)
(2) x (1/0 – 600 kcmil)
120/208V OUT
80 kVA
(2) x 2/0 AWG – (2) x 4/0 AWG – (1) x 600
(1) x 500 kcmil
(2) x 350 kcmil
(2) x 300 kcmil
2 x 2/0 AWG –
(1) x 400 kcmil
2 x 2/0 AWG –
(1) x 400 kcmil
(2) x 300 kcmil
(2) x 250 kcmil
100kVA
kcmil
(2) x 500 kcmil
(2) x 500 kcmil
(2) x 3/0 AWG –
(1) x 600 kcmil
(3/8 in Hex drive
(2) x 3/0 AWG –
(1) x 600 kcmil
(2) x 500 kcmil
(2) x 350 kcmil
Tightening
Torque
2
375 in-lb
(42 N•m)
socket)
49