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Table 18
Recommended conduit and cable sizes for use with 100% rated breakers (continued)
Battery
UPS Rating
Voltage
kVA
kW
VAC
625
625
750
750
480
800
800
1000
1000
1100
1100
480
1200
1200
1.
Recommended cable sizes are 167°F (75°C) (THW) wire at 86°F (30°C) ambient.
2.
Refer to NEC recommendations for 104°F (40°C) ambient rated conductors.
3.
Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.
4.
Recommended cables and conduits are based on breaker trip setting sized for the maximum continuous rated current for the rectifier input and
the nominal current for the bypass and output listed in Tables 14 through 17.
5.
Conduit size is based on RNC type conduit for bottom input and EMT-type conduit for top input.
6.
Vertiv® recommends that the site planner choose the appropriate cable type based on the particular installation requirements.
7.
These recommendations are for use with 100% rated breakers. For 125% rated breakers, refer to the NEC recommended conduit and cable sizes.
8.
Upstream and downstream non-standard recommended breaker settings have their trip adjustment behind a suitable cover in accordance with
240.6(c) of the NEC.
Table 19
Recommended breakers, upstream and downstream
UPS Rating
System Input
kVA
Nominal Current
Upstream Breakers
625
777
750
933
800
995
1000
1246
1100
1371
1200
1496
Downstream Breakers
625
752
750
902
800
962
1000
1203
1100
1323
1200
1443
™
Vertiv
| Liebert® EXL™ 625-1100kVA Installation Manual
(# of conduits); size of conduits; # -size of phase cables per conduit;
Cable
Entry
Copper Conductors
Top
(5)3"C 2-600kcmil; 250kcmil
Bottom
(5)3"C 2-600kcmil; 250kcmil
Top
(5)3"C 2-600kcmil; 250kcmil
Bottom
(5)3"C 2-600kcmil; 250kcmil
Top
(6)3"C 2-600kcmil; 350kcmil
Bottom
(6)3"C 2-600kcmil; 350kcmil
Top
(8)3"C 2-600kcmil; 500kcmil
Bottom
(8) 3.5"C 2-600kcmil; 500kcmil
Top
(8)3"C 2-600kcmil; 500kcmil
Bottom
(8) 3.5"C 2-600kcmil; 500kcmil
Top
(9)3"C 2-750kcmil; 500kcmil
Bottom
(9) 3.5"C 2-750kcmil; 500kcmil
Recommended External
Breaker Trip, Amps
900
1000
1200
1400
1600
1600
800
1000
1000
1400
1400
1600
size of cable for ground per conduit
Aluminum Conductors
(6) 3"C 2-600kcmil; 400kcmil
(6) 3.5"C 2-600kcmil; 400kcmil
(6) 3"C 2-600kcmil; 400kcmil
(6) 3.5"C 2-600kcmil; 400kcmil
(7) 3"C 2-700kcmil; 600kcmil
(7) 3.5"C 2-700kcmil; 600kcmil
(8) 3"C 2-700kcmil; 600kcmil
(8) 3.5"C 2-700kcmil; 600kcmil
(8) 3"C 2-700kcmil; 600kcmil
(8) 3.5"C 2-700kcmil; 600kcmil
(11) 3"C 2-700kcmil; 750kcmil
(11) 3.5"C 2-700kcmil; 750kcmil
| Rev. 3 | 02/17
51
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