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MX06 Power Plant User’s Manual Page 6
Ventilation
The rectifier modules for this system have fans that provide front-to-rear airflow for internal
cooling. The power system housing should be mounted such that there is free airflow to the
front and back of the unit. [Refer to Section 6.5 for environmental characteristics.] Free airflow
should be ensured so that the power system can provide full power at a given ambient
temperature without de-rating.
3.3. AC Power Connections
WARNING: Ensure that all of the external DC and AC circuit breakers are in
the OFF position prior to connecting service to the power plant. Confirm that
all voltages have been removed including any battery sources before
proceeding. Keep the rear cover in place when the system is operational or
energized.
The DC power system requires the supply of 90/115/208/220/240 VAC single-phase, 50/60 Hz
power. One AC input on the power system backplane supplies power to the first rectifier in each
shelf. Two inputs supply power to the second and third pair of rectifiers and the fourth and fifth
pair in each shelf. This scheme allows a variety of wiring options. Provided the input wiring is
not overloaded, one, two or all three inputs on each shelf can be jumpered together. The
ambient temperature and number of wires in a conduit must be considered in accordance with
all applicable regulatory agencies.
Various AC input cable kits are available from APC. These cables are 12 feet (3.7m) long and
have a power plug installed on each cable. When ordered with the power system, these cables
will be installed with strain reliefs provided to mount the 3-conductor jacketed cables. Each kit
will supply power to the entire power system. Use the chart in Figure 3.3-1 to determine the
suggested cable kits.
Part Num. AWG Cable Qty Plug Num. Plug Style Voltage Power System
0M-91156 12 2 NEMA 5-20P Non-locking 115 Magnum VS 50
0M-91154 12 2 NEMA L5-20P Locking 115 Magnum VS 50
0M-91158 10 1 NEMA 5-50P Non-locking 115 Magnum VS 50
0M-1150 12 2 NEMA L6-20P Locking 230 Magnum VS 50
0M-91160 10 1 NEMA 6-30P Non-locking 230 Magnum VS 50
0M-91159 10 1 NEMA L6-30P Locking 230 Magnum VS 50
0M-91137 12 4 NEMA 5-20P Non-locking 115 Magnum VS 100
0M-91141 12 4 NEMA L5-20P Locking 115 Magnum VS 100
0M-91138 10 2 NEMA 5-50P Non-locking 115 Magnum VS 100
0M-1149 12 4 NEMA L6-20P Locking 230 Magnum VS 100
0M-91135 10 2 NEMA 6-30P Non-locking 230 Magnum VS 100
0M-91136 10 2 NEMA L6-30P Locking 230 Magnum VS 100
Figure 3.3-1 AC Input Wiring Kits