Installation and Operation Guide SOLECTRIA® PVI 25TL-208, PVI 50TL-480 and PVI 60TL-480
DOCR-071030-A (10/7/2022)
Page 45 of 131
Figure 3-26 Independent MPPT Zones Only
WARNING
Unequal String Lengths
and
Module Mismatch:
Opening fuses under load can cause a hazardous condition. It
is strongly recommended to avoid unequal string lengths within a zone and module mismatch.
Figure 3-27 Matched (Left) and Mismatched (Right) String Sizes within a Zone or Inverter
DC Connection Specifications
The voltage rating of the DC conductors must meet or exceed 1000VDC and be rated at no less than 90°C (194°F).
All electrical conductors must meet the requirements of the NEC and local electrical codes. Although these inverters
operate with ungrounded PV arrays, the PV system requires a DC equipment grounding conductor (EGC) to ensure
operational safety. The grounding busbars are electrically bonded by way of the inverter chassis.
Table 3-4 DC Input Specifications
DC INPUT
PVI 25TL-208
PVI 50TL-480
PVI 60TL-480
MAXIMUM POWER INPUT VOLTAGE RANGE
480-850 VDC
480-850 VDC
540-850 VDC
OPERATING VOLTAGE RANGE (MPPT)
200-950 VDC
200-950 VDC
200-950 VDC
START-UP VOLTAGE / POWER
330 V / 80 W
330 V / 80 W
330 V / 80 W
MAXIMUM RATED PV INPUT
17 kW per zone
(45 kW total)
33 kW per zone
(90 kW total)
33 kW per zone
(90 kW total)
ABSOLUTE MAXIMUM INPUT VOLTAGE
1000 VDC
1000 VDC
1000 VDC