socomec DIRIS A20 Mode D'emploi page 7

BALAnCeD THRee-PHASe neTwOrK (3BL/4BL)
The solution using one CT, with the phases current
calculated via vectoral summation, results in an 0.5%
reduction in phase accuracy.
In IT load, do not connect the secondary of CTs
with the earth
I1 I2 I3
S1 S2 S1 S2 S1 S2
S1
P1
I1 I2 I3
S1 S2 S1 S2 S1 S2
S1
P1
 Aux.: ieC/Ce
UL
 Fus.: 0.5AgG/BS882AgG/0.5AclassCC
DIRIS A20
inSTallaTiOn
V1 V2 V3 VN AUX
2
1
2
L1 ( R )
L2 ( S )
L3 ( T )
N
V1 V2 V3 VN AUX
2
1
2
L1 ( R )
L2 ( S )
L3 ( T )
110... 400V AC
120... 350V DC
110... 240V AC
120... 250V DC
DIRIS A20 - Ref.: 538848 A 7