NF DP420LS Instruction Manual page 36

(b) When not connecting the load with the neutral line (three-phase three-wire connection):
Connect between the Lo terminals of each cabinet by a cable which is as short and thick as
possible (with a diameter equal to or more than that of the voltage line).
L1
CAUTION
 The terminal which can be grounded is the Lo terminal of each cabinet. Do not ground the Hi
terminal (L1, L2, and L3 voltage lines).
4. Attach the resin-molded power input terminal cover so that the cable passes through the cutout
of the cover.
WARNING
 Do not use this product when the resin-molded terminal cover is removed. Otherwise, an electric
shock might occur.
 Use enough thick cables or attach some additional guards to prevent touching live conductive
parts after attaching the resin-molded terminal cover.
 When no load is connected, attach the resin-molded terminal cover so that the cutout of the
cover comes on the upside.
DP420LS/DP480LS
L1 L2 L3
(Cabinet ground terminal)
(b)Three-phase three-wire connection
2.5 Output and System Cable Connection
L2
Load
L3
17