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Operating the ACCB
2–4 975-0046-01-01
AC Input/Output Off
No power to the load or charger (Figure 2-4).
In this configuration, power from both the external sources of AC and the
inverter is removed from the loads. This allows the inverter, the connected
loads, or any other installed equipment beyond the ACCB to be serviced.
‘
Dual Inverters: 240 Vac Loads
Figure 2-4
AC Output OFF
WARNING: Fire Hazard
In a series-stacked, inverter installation (120/240 Vac) with a bypass switch for
each inverter, both bypass switches must be in the same position.
If the bypass switches are not in the same position, the resulting AC output of the
two bypass switches may not be 180° out-of-phase from each other. This can
result in excess current on the neutral wire creating a potential fire hazard.
This can also result in less than 240 Vac output. Loads requiring 240 Vac will not
run.
OFF
ON
60 60
OFF
ON
INVERTER
BYPASS
INVERTER
DISCONNECT
BOTH OFF TO DISCONNECT AC OUTPUT
1234
Both external AC
source and Inverter OFF
AC Input
from Grid or Gen
AC Output
to Loads