AMETEK ReFlex - Manual (Page 46)

ReFlex Power™ Mainframe
M380056-01 Rev J 2-11
Figure 2-3. Module Installation
2.4.5
I
NPUT
P
OWER
R
EQUIREMENTS
The input configuration accepts a wide variety of sources: single-phase and
three-phase AC inputs, as well as DC. With single-phase inputs, the AC input
range spans nominal voltages from 100VAC to 240VAC. Three-phase inputs
could be derived from sources configured as delta (3-wire plus ground) and wye
(4-wire plus ground). With a delta source, the allowed input voltage is 200VAC,
while with a wye source, the input voltage could be 115/200VAC or 230/400VAC.
Regardless of the input service, modules are connected either line-to-line or line-
to-neutral so that the operating voltage applied to the modules is within the range
of 85-264VAC. The allowed frequency range is 50/60/400Hz. The DC input is
based on a nominal 270VDC, with an operating range from 210VDC to 300VDC.
CAUTION
Connecting to a wye source at 230/400VAC must be from
line to neutral so that the voltage applied to a module input
is less than 264VAC. Exceeding the input voltage rating
could result in damage of the module.
The input current is dependent on the total aggregate output power supplied by
the modules installed in the Mainframe. The maximum input current is limited by
the power dissipation produced in the backplane power distribution,
interconnects, and wiring. With a limit of 24A per input line, the Mainframe is
capable of provided up to 6,000W of aggregate output power.
The input power connector of the Mainframe has three pairs of line connections
plus ground, seven contacts in total. Each pair of input lines is distributed through
the backplane to a group of four backplane slot connectors, all connected in