Siemens SENTRON PAC1020 Manual page 35

5. 3-phase measurement, 3 conductors, unbalanced load, without voltage transformer,
with 2 current transformers
Connection type 3P3W
*
**
***
Figure 4-6
PAC1020
Equipment Manual, 05/2020, L1V30610008B-01
The fuses are only used for cable protection.
All commercially available miniature circuit breakers up to 20 A (C) can be used.
Connection of supply voltage
Install a short-circuit device. Protection against overvoltage when the secondary transformer
circuit is open.
Connection type 3P3W, without voltage transformer, with 2 current transformers
Connection
4.3 Connection examples
33