socomec DIRIS B-30 - Connection of the Functional Earth

37
EN
DIRIS B 546 770 A - SOCOMEC
Two-phase + Neutral
2P+N – 2CT (x2)
(2 two-phase loads)
Two-phase
2P – 1CT (x4)
(4 two-phase loads)
(1)
V1 V2 V3 VN
V
I
L1
L2
N
I01 I02 I03 I04
2 + N2 + N
I
V1 V2 V3 VN
V
L1
L2
I01 I02 I03 I04
2222
Single-phase
1P+N – 1CT (x4)
(4 single-phase loads)
V
I
V1 V2 V3 VN
L1
N
I02 I03I01 I04
(1)
1 1 1 1
0.5 A gG / BS 88 2A gG / 0.5 A class CC fuse
%NQRDKERTOOKXLNCTKDR@ETRDLTRSAD@CCDCSNSGDMDTSQ@K
Fuse: 0.5 A gG / BS 88 2A gG / 0.5 A class CC
Notes relating to connections:
The $@RX"NMkFRNESV@QDB@M@KRNADTRDCSNRDKDBSMTLDQNTRNSGDQBNMjFTQ@SHNMU@QH@MSRENQSGDSXODRNEKN@CR
and associated network voltages.
3P – 2CTSGHRBNMMDBSHNMQDCTBDRSGD@BBTQ@BXNESGDOG@RDRSGDBTQQDMSENQVGHBGHRVNQJDCNTSAXUDBSNQ
B@KBTK@SHNMAX
3P – 1CT: this connection requires a three-phase network that is perfectly balanced.
6.3.4. Connection of the functional earth
It is recommended that the functional earth is connected to guarantee optimum measuring accuracy and better
emissivity/immunity for the electromagnetic compatibility (class B in conducted emission). Earth must not be used
in a neutral IT system.