Combined Current Transformer
CBT16-1 is used for 3-phase-3-wire circuits; CBT-3 is used for 3-phase-4-wire circuits

Model
Current Ratio
Accuracy Class
Rated Burden (Ω)
Mechanical Dimensions
CBT-2 (for 3-phase-3-wire circuits)
 
CBT-3 (for 3-phase-4-wire circuits)
1.5(6)A/5mA
 
0.05, 0.1,
0.2, 0.5
5
 
10
 
20
 
40
CBT14~CBT18
0.3(1.2)A/5mA
CBT14, CBT16, CBT16-1, CBT17,
CBT18.
0.5(2)A/5mA
1(6)A/5mA
1(2)A/25mA
0.1
0.2
0.5
1.5(6)A/0.75mA
1.5(6)A/7.5mA
5(20)A/5mA
5A/25mA
1.5(6)A/3mA
6A/25mA
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