
Electrical Requirements and Specifications
Procedures requiring a licensed electrician
Electrical Hazard
See also
Procedures requiring a licensed electrician include:
•Connection of utility conductors
•Installation of a
•Connection to the Main Input switch
•Connection to a branch circuit
•Connection to the cross tie output breaker
To connect utility conductors, see Certified Electrician’s Instructions
Electrical requirements
| 208VAC | 480VAC | 600VAC |
|
|
|
|
Upstream circuit breaker † ‡ | 350A | 150A | 125A |
Conductors to Main Input switch† ‡* | 3W + G, 4W + G* | 3W + G + GEC to building steel | |
Conductors to the Bypass Input switch† ‡ | 4W + G |
|
|
Conductors to the Cross Tie Output | 4W + G |
|
|
breaker† ‡ |
|
| |
|
|
| |
Recommended wire sizing‡ |
|
|
|
L1, L2, L3 | 400kcmil (350A) | 1/0AWG (150A) | 2AWG (125A) |
N* | 400kcmil | 1/0AWG | 2AWG |
G | 3AWG | 6AWG | 6AWG |
GEC | 1/0AWG | 6AWG | 8AWG |
Torque according to wire size |
|
|
|
L1, L2, L3 | Underfloor Wiring: | ||
| (18Nm) of lugs onto the circuit breaker |
| |
N |
|
| |
G, GEC | |||
| (G + GEC) |
|
|
|
|
|
|
*Transformerless PDUs only.
† Provided by customer.
‡ Consult local and national codes for sizing requirements.
InfraStruXure | 11 |