Siemens 7KT0310, Manual, Page: 9 / 21

9
SMART 7KT0310 Manual
Connection
5
N
S2 S1 S2 S1 S2 S1 V1
N
L
O
A
D
I
1
V2
V3
L1
L2
L3
I
2
I
3
DI
L
N
+
RS485
+
CONNECTIONS DIAGRAM
3 Phase 4-Wire (commonly used)
3 Ø - 4 Wire, 3 CT’S 3 Ø - 4 Wire, 3 CT’S and 3 PT’S
S2 S1 S2 S1 S2 S1 N V2 V3
LOAD LINE
L1
L2
L3
N
I
1
I
2
I
3
V1
#
DI RS485
L
N
L N
#
+ +
+
SMART 7KT
Voltage upto 500V without PT
LINE
DI RS485
L
N
L N
#
LOAD
L1
L2
L3
N
#
S2 S1 S2 S1 S2 S1 N V1 V2 V3
I
1
I
2
I
3
+ +
+
SMART 7KT
Voltage 100V-500kV with PT
Circuit Diagram