EMH ITZ - Terminal Blocks; Transformer Operated Meter; Direct Connected Meter 60 a

8
2.3 Terminal blocks
2.3.1 Transformer operated meter
Current
terminals
Voltage
terminals
Auxiliary
terminals
Terminal dimensions
W x H (d) mm
4.6
4.6
9-block: 3.2 x 3
12-block: 3
Max. connection-
cross section (mm²)
6
6
2.5
Maximum torques
for terminals (Nm)
1.5
1.8
0.5
Head/size of thread
slot/M4
PZ1/M4
slot/M3
Figure 3: Terminal block for transformer operated meter
2.3.2 Direct connected meter 60 A
Current terminals
Voltage and auxiliary
terminals
Terminal dimensions
W x H (d) mm
6.5
3
Max. connection-
cross section (mm²)
16
2.5
Maximum torques
for terminals (Nm)
2.7
0.5
Head/size of thread
PZ2/M5
slot/M3
Figure 4: Terminal block for direct connected meter 60 A
In normal operation the
voltage bridges are closed
and are only opened for
testing the device!
opened
closed