Technical data

Technical data
25
Ratio
60 Hz metering accuracy at burden
Relay class
B0.1 B0.5 B1.0 B2.0
Type MD38A toroidal standard accuracy
100:5 2.4
2
---- ---- ---- C10
150:5 1.2 4.8 ---- ---- C20
200:5 0.6 2.4 ---- ---- C25
250:5 0.6 1.2 2.4 ---- C35
300:5 0.6 1.2 2.4 2.4 C40
400:5 0.3 0.6 1.2 2.4 C60
500:5 0.3 0.3 0.6 1.2 C75
600:5
3
0.3 0.3 0.6 1.2 C100
800:5 0.3 0.3 0.6 0.6 C130
1,000:5 0.3 0.3 0.3 0.3 C170
1,200:5
3
0.3 0.3 0.3 0.3 C200
1,500:5 0.3 0.3 0.3 0.3 C200
2,000:5
3
0.3 0.3 0.3 0.3 C210
2,500:5 0.3 0.3 0.3 0.3 C300
3,000:5
3
0.3 0.3 0.3 0.3 C300
Type MDD38A toroidal special accuracy
50:5 4.8
2
---- ---- ---- C10
75:5 2.4
2
---- ---- ---- C15
100:5 2.4 4.8 ---- ---- C20
150:5 1.2 2.4 4.8 4.8 C30
200:5 0.6 1.2 2.4 4.8 C40
250:5 0.6 1.2 1.2 2.4 C50
300:5 0.3 0.6 1.2 2.4 C60
400:5 0.3 0.6 0.6 1.2 C90
500:5 0.3 0.3 0.6 0.6 C110
600:5
3
0.3 0.3 0.6 0.6 C130
800:5 0.3 0.3 0.3 0.3 C190
1,000:5 0.3 0.3 0.3 0.3 C200
1,200:5
3
0.3 0.3 0.3 0.3 C280
1,500:5 0.3 0.3 0.3 0.3 C340
2,000:5
3
0.3 0.3 0.3 0.3 C330
2,500:5 0.3 0.3 0.3 0.3 C420
3,000:5
3
0.3 0.3 0.3 0.3 C500
Table 6: Current transformers
1
Footnotes:
1.
1-second through-current and momentary current are equal to
the ratings of the associated circuit breakers.
2.
Exceeds ANSI/IEEE C37.20.2 accuracy limit.
3.
Multi-ratio current transformers available. The accuracy ratings
shown apply only to the full secondary winding.