Auxiliary Supply
INTEGRA should ideally be powered from a dedicated supply, however it may be powered from
the signal source, providing the source remains within tolerance for the auxilary supply.
Fusing
This unit must be fitted with external fuses in voltage and auxiliary supply lines. Voltage input
lines must be fused with a quick blow fuse 1A maximum. Auxiliary supply lines must be fused
with a slow blow fuse rated 1A maximum. Choose fuses of a type and with a breaking capacity
appropriate to the supply and in accordance with local regulations.
Earth/Ground Connections
For safety reasons, CT secondary connections should be grounded in accordance with local
regulations.
Connection Diagrams
Voltage lines and auxiliary supplied must be fused - see above.
19
18
16
17
15
5
3
2
1
8
4
13
7
11
6
14
9
L1
L2
L3
L
O
A
D
3-PHASE 3-WIRE UNBALANCED LOAD
P1
S1
S1
P1
SUPPLY
AUX
+
L
-
N
AUX
SUPPLY
N
L3
L2
L1
S1
P1
P1
S1
P1
S1
11
1
2
3
4
6
5
8
16
15
17
7
9
13
14
19
18
3-PHASE 4-WIRE UNBALANCED LOAD
L
D
A
O
+
L
N
-
