Connection
4.3 Connection examples
Equipment Manual, 09/2022, L1V30415168B-03
37
(3) Three-phase measurement, four conductors, balanced load, without voltage
transformer, with one current transformer
Connection type 3P4WB
* The fuses are only used for cable protection. All commercially available fuses and automatic
circuit breakers up to 16 A (C) or 20 A (B) can be used.
** Install a short-circuit device. Protection against overvoltage when the secondary transformer
Figure 4-4 Connection type 3P4WB, without voltage transformer, with one current transformer
(4) Three-phase measurement, four conductors, balanced load, with voltage
transformer, with one current transformer
Connection type 3P4WB
* The fuses are only used for cable protection. All commercially available fuses and automatic
circuit breakers up to 16 A (C) or 20 A (B) can be used.
** Install a short-circuit device. Protection against overvoltage when the secondary transformer
Figure 4-5 Connection type 3P4WB, with voltage transformer, with one current transformer
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