Siemens SENTRON PAC2200, Product Manual, Page: 49 / 130

Connection
4.3 Connection examples
PAC2200
Equipment Manual, 12/2019, L1V30415167B-03
47
Connection examples for the 5 A device
CAUTION
Protection of the voltage measuring inputs
On the 5 A device, the fuses in the voltage measuring inputs are only used for cable
protection. Selection of the fuse depends on the supply cable dimensioning. All
commercially available fuses and automatic circuit breakers up to 16 A (C) or 20 A (B) can
be used. The relevant applicable regulations must be complied with in selecting the fuse.
(1) Three-phase measuring, four conductors, unbalanced load, with three current
transformers
Connection type 3P4W
* The fuses in the voltage measuring inputs are only used for cable protection.
Figure 4-3 Connection type 3P4W, with three current transformers
(2) Single-phase measuring, with one current transformer
Connection type 1P2W
* The fuses in the voltage measuring inputs are only used for cable protection.
Figure 4-4 Connection type 1P2W, with one current transformer