Owner manual

9. Operating voltage

PLM+ SERIES Quick Start Guide rev 1.0.0

9.1. Low voltage country considerations

Although the PLM+ Series has a wide range of operating mains voltage, some considerations can be applicable

for low voltage regions. PLM+ performs well throughout the specied nominal voltage range but has slightly better

efciency at higher voltages. For regions with nominal voltage below 140 V, one could consider connecting the

amplier in a three-phase delta or two phase split-phase conguration.

Note: Following connections applicable only for resulting voltage inside the ampliers nominal

voltage range.

Connecting the amplier in three phase delta conguration

In three-phase conguration where the phases are 120 degrees apart, one can connect three balanced loads in a

delta conguration. The connection is made between the phases instead of between the neutral and a phase.

Three phase delta conguration

Amp

120V

Amp

N N

Amp

3 phase Y 120V

3 phase delta 208V

208V

L1 L2

Connecting the amplier in a split phase conguration

In two phase split-phase conguration there are two phases separated by 180 degrees. Connecting between the

phases gives double the line voltage.

Two phase split-phase conguration

Split phase 100V

100V 100V 200V

Amp

L2N

Amp

Split phase 200V

L1 L2

Amp