45
Three-phase connection
1.
(THREE-PHASE CONNECTION 3 kW ):
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.
L
N
L3
N
OUT
IN
REMOTE
BYPASS
L2
L1
+
-
BATT.
EXP.
1
2
3
4
5
6
7
8
9 10
A
B
C
3.
Tighten the terminals well, close the back-pack and secure it with the screws taken out earlier.
USE