47
USE
Three-phase connection
1. (THREE-PHASE CONNECTION 8-10kVA): Use 3 cables of cross-section 6 mm
2
(EARTH, L2 and
L3) and 2 with cross-section 10 mm
2
(N, L1) for the input (N.B.: L1 and N are of greater cross-
section because in bypass operation they have to carry all of the input current). For the output use
3 cables of cross-section 10 mm
2
(EARTH, N and L).
(THREE-PHASE CONNECTION 6.5kVA): Use 3 cables of cross-section 4 mm
2
(EARTH, L2 and
L3) and 2 of cross-section 6 mm
2
(N, L1) for the input (N.B.: L1 and N are of greater cross-section
because in bypass operation they have to carry all of the input current). For the output use 3 cables
of cross-section 6 mm
2
(EARTH, N and L).
2. Connect the wires to the respective terminals, following exactly the instructions below:
Input line
a - Ensure that the upstream magneto-thermal switch is open.
b - Connect the earth wire to terminal B.
c - Connect the neutral wire to terminal 6.
d - Connect the wires of the phases to terminals 3, 4 and 5 (for L1 use red wire).
Output line
a - Connect the earth wire to terminal C.
b - Connect the neutral wire to terminal 8.
c - Connect the live wire to terminal 7.
By-pass line
a - Ensure that a jumper is connected on terminals 9 and 10, this is necessary for correct operation of the
UPS.
LNL3 N
OUTIN
REMOTE
BYPASS
L2L1
+-
BATT.
EXP
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