Name: Delta RPI Series
Brand: Delta
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The AC voltage should be as followings:

3P3W 3P4W

L1-L2: 400 Vac ± 20% L1-N: 230 Vac ± 20%

L1-L3: 400 Vac ± 20% L2-N: 230 Vac ± 20%

L2-L3: 400 Vac ± 20% L3-N: 230 Vac ± 20%

After wiring, installer should choose the AC connection type on the control

panel. About setting, please refer to 5.2.7 Install Settings.

TT is not recommended. The voltage of N has to be very close to PE.

(difference <20 V

rms)

Earthing system TN-S

Permitted Yes

TN-C

Yes

TN-C-S

Yes

4.2.2 Permitted earthing systems

Wiring

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Delta RPI Series Specifications

General