10
Insulated network
Un
Network with one grounded polarity
Un
Note: in the considered connections, the earthed polarity is the negative one.
Network with the grounded mid-point
Un
11
1
In
MIN
MED
40
375
50
375
63
375
80
500
TMA
100
625
125
781
1000
160
1200
SACE Tmax | ABB
≤250
+
–
LOAD
≤250
–
+
LOAD
+
–
LOAD
≤250
+
-
LOAD
2
I3
MAX
388
400
438
500
503
630
TMD
600
800
750
1000
938
1250
1600
+
+
+
+
LOAD
l3
MAX MED
MIN
MAX MED
MIN
l1
3polesinseries
For allowed I3 values look at manual
MAX
MIN
MAX
MIN
MED
MED
In
I3
16
20
375
25
32
≤500
–
LOAD
≤500
–
LOAD
–
LOAD
≤500
-
In
MIN (0,7) MED (0,85) MAX (1xIn)
16
11,2
20
14
TMD
25
17,5
32
22,4
40
28
50
35
44,1
63
TMA
80
56
100
70
125
87,5
160
112
Wiring diagram
XT2 3p-4p
I1
13,6
16
17
20
21,2
25
32
2 2 7 7 ,2
34
40
42,5
50
53,5
63
68
80
85
100
125
106,2
136
160