American Power Conversion MX06 50, MX06 100 user manual AC Power Connections, Ventilation

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

MX06 Power Plant User’s Manual Page 6