BONFIGLIOLI Vectron ACTIVE CUBE Série Guide Rapide page 78

4.2 Connection
4.2.1 ACU210 (up to 3.0 kW) and 410 (up to 4.0 kW)
Mains connection, X1
GB
1
When the mains current is above 10 A, the mains power connection
230 V 1ph/N/PE and 230 V 2ph/N/PE must be done on two terminals
each.
76 Quick Start Guide ACU 10/18