Installation Guide DLX seriesL00410622-01 19
2.4.4. AC Connections (Grid)
The AC connection includes wiring from the AC distribution panel through one or more
circuit breakers to the AC terminal block of the inverter.
Verify that the AC grid specifications are compatible with the inverter characteristics
before connecting the inverter to the grid:
• Single phase / Split phase
• Voltage range (184 – 276 V
AC
)
• Frequency range (50 Hz ±5 Hz)
DANGER
Turn OFF the AC circuit breaker before connecting the inverter to the AC grid to
prevent electrocution.
The DLX series are single phase output inverters, which are designed so that they can be
connected to a three-phase system. When several inverters are connected together, they
must be distributed evenly between the grid phases.
Single Phase
Figure 2.4.9: Example inverter AC connections
Three Phase
Table 2.4.2: The different AC conductors
Term (Abbr.) Description
Phase conductor (L1/L2/L3)
The ungrounded live conductors, which carry current to the load.
Neutral conductor (N)
In a single phase system the neutral conductor is a circuit conductor
carrying the same amount of current as the ungrounded phase
conductors.
PE (Protective Earth /
Ground) conductor
An electrical path to ground, designed to carry fault currents.
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