User Manual

0200018-J0 Rev C
12
The terminal blocks in the Alpha MBS are suitable for a single #6 AWG wire and up to
350 kcmil wire.
CAUTION!
WARNING!
Ensure the wire size, circuit breakers, and fuses are sized according to the applicable
electrical code and LIMIT THE SHORT CIRCUIT CURRENT TO 5000A.
WARNING!
Use minimum 75 ºC rated wire.
5.2 Wiring the Alpha MBS
Utility
TB1
TB2
TB3
Critical
Loads
Alpha MBS
Utility
UPS
TB1
TB2
TB3
Critical
Loads
Alpha MBS
System
UPS
System
Over Current
current limiting
device
Over Current
current limiting
device
Disconnect
switch with
pass- through
Figure 7 — Typical MBS wiring diagrams
Torque the terminal blocks to 31 N-m (275 in-lbs).