MPC 1250, Руководство оператора, Страница: 13 / 44

Section II General Product Information
006-0007207 MPC-1250DC Guide Rev F 13 of 44 03/03/2022 www.synqor.com
Total Output Power that can be derived from the AC INPUT
The total MPC output power for the MPC‑1250 DC Output Series is rated at 1250 W for an
ambient temperature as high as 55
o
C (131
o
F). It draws this power first from the AC INPUT (if its
voltage is within range) and then the DC INPUT (if its voltage is within range).
However, when the AC INPUT voltage is at the low end of its range (<90 Vrms) or the ambient
temperature is at the high end of its range (>45oC/113oF) the MPC will not be able to deliver its
full rated output power in the steady‑state without switching over to either the DC INPUT (if it
is available and >22 Vdc). Figure 4 indicates the total steady‑state output power that the MPC
can derive from the AC INPUT under these extreme conditions. See Figure 3 for information on
transient conditions.
• If the AC INPUT voltage is above 105 Vrms, then the MPC can deliver its full rated output
power of 1250 W from the AC INPUT for an ambient temperature as high as 55
o
C (131
o
F)
without needing to switch over to the optional DC INPUT.
• If the AC INPUT is between 90 Vrms and 80 Vrms then the total output power that can be
derived from the AC INPUT linearly decreases from 1250 W at 90 Vrms to 1000 W at 80 Vrms
(except for at the high end of the ambient temperature range – see below). For example, the
total output power that could be derived from the AC INPUT would be 1125 W at 85 Vrms as
long as the ambient temperature is not above 50
o
C (122
o
F). If the total output power is greater
than this derated value, the MPC will switch to the DC INPUT (if it is available and >22 V).
• If the AC INPUT voltage is 90 Vrms AND the ambient air temperature is above 45
o
C (113
o
F),
the total output power that can be derived from the AC INPUT linearly decreases from 1250
W at 45
o
C (113
o
F) to 1000 W at 55
o
C (131
o
F). For example, the total output power that could
be derived from the AC INPUT would be 1125 W at an AC INPUT voltage of 90 Vrms and an
ambient temperature of 50
o
C (122
o
F). A higher output power than this would cause the MPC
to switch over to its DC INPUT.
• When the AC INPUT voltage is between 105 Vrms and 90 Vrms AND the ambient temperature
is between 45
o
C and 55
o
C, the total output power that can be derived from the AC INPUT can
be calculated by linearly interpolating between the curves shown. For example, the total output
power that can be derived from the AC INPUT when the voltage is 97.5 Vrms would be 1250 W
up to an ambient temperature of 50
o
C (122
o
F) and then derate to 1125 W at 55
o
C (131
o
F).
Furthermore, there is a limited (and uncommon) range of AC INPUT voltage between 132 Vrms
and 160 Vrms in which the total output power that can be derived from the AC INPUT is also
derated, as shown in Figure 3.