3 Installation3.3 Electrical Installation42 DE1… Variable Speed Starter 11/16 MN040011EN www.eaton.com3.3.2 Connection to power sectionThe mains-side connection to the power section must be established usingthe connection terminals:• L1/L, L2/N, PE for the single-phase supply voltage powering DE1-12…devices• L1/L, L2/N, L3, PE for the three-phase supply voltage poweringDE1-34… devices. The phase sequence does not matter.Figure 29: Connection on mains side (schematic)The connection on the motor side must always be established usingconnection terminals U, V, and W.NOTICEThe DE1... variable speed starter must always be connectedwith ground potential via a grounding conductor (PE).NOTICEDo not use any of the sealed-off connection terminals in thepower section.L3L2/N L1/LPE1 AC 200/240 V50/60 HzWV UPESM3 ~L3L2/N L1/LPE3 AC 380/480 V50/60 HzWV UPESM3 ~
