Danfoss DLX 4.6 Guide d'installation télécharger pdf (Page 19)

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

)

• 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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Danfoss DLX 4.6 Guide d'installation Page 19