ABB IM300-I Operational Manual page 10

4 5 6 7 11 12
 3-phase 3-wire system: 3CT
 3-phase 3-wire system: 2CT
 3-phase 3-wire system: 1CT
IM300 Intelligent Power Monitoring Instrument
4 5 6 7
C
B
A
N
Fig 2.2.3.2 3P4W+1CT
Fig2.2.3.3 3P3W+3CT
Fig 2.2.3.4 3P3W/3PT+2CT
8
11 12
C
B
A
N