16
Planning Preparations
This guide for use by qualified personnel only.
30
$XWR3RZHU
320
400 kcmil
4/0 AWG
IMPORTANT:
Longer cables may cause the inverter to shut down under
a heavy load.
FIRE HAZARD
Undersized cables will overheat. Consult local electrical codes to
determine minimum required size.
Table 3
Minimum Recommended Battery Cable Sizes for
Copper Conductors Rated 75C
Conduit
Failure to follow these instructions can result in death or serious injury.
Free Air
Model
Amps
Typical
(A)
Cable Length
< 10 ft.
Cable Length
< 5 ft.
Model
Fuse Size (A)
a. Based on National Electrical Code (NEC) requirements. The NEC requires that the cables
be protected by a fuse or breaker rated to match the cables’ ampacity at 75 °C.
275
Auto Power 2000
350
Auto Power 3000
DC Disconnects and Over-Current Devices
The DC circuit from the battery to the inverter/charger must
be equipped with a disconnect and overcurrent protection
device. Refer to your applicable installation code for
guidance.
Type
This device usually consists of a circuit breaker, a
“fused-disconnect,” or a separate fuse and DC disconnect. Do
not confuse AC circuit breakers with DC circuit breakers.
They are not interchangeable.
Rating
The rating of the fuse or breaker must be matched to
the size of cables used in accordance with the applicable
installation codes.
Location
The breaker or fuse and disconnect should be
located as close as possible to the battery in the positive cable.
Applicable codes may limit how far the protection can be
from the battery.
Table 4
Recommended Fuse Sizes
a
Summary of Contents for 091-269-12-2000
Page 2: ......
Page 31: ...1 Blank Page for future use...
