Rockwell Automation 193-EC4 EC4 Current Monitoring Relay User Manual - Manual (Page 82)

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 83
Current Monitoring Parameters Chapter 6
➊ 0 A is reported when the actual current is below the indicated minimum reporting current.
➋ The E3 is capable of reporting higher currents, but reporting accuracy is compromised.
Reporting Accuracy
Table 20 - Current Reporting Summary (with indicated precision)
FLA Setting Range
[A] CT Ratio Min. Reporting
Current [A] ➊ Max Reporting
Current [A] ➋
0.4…2.0 — 0.15 14.40
1…5 — 0.30 36.00
3…15 — 0.90 108.00
5…25 — 1.50 180.00
9…45 — 3.0 360.0
18…90 — 6.0 720.0
9…45 50:5 3 360
18…90 100:5 6 720
28…140 150:5 9 1080
42…210 200:5 12 1440
60…302 300:5 18 2160
84…420 500:5 30 3600
125…630 600:5 36 4320
172…860 800:5 48 5760
240…1215 1200:5 72 8640
450…2250 2500:5 150 18000
1000…5000 5000:5 300 32767
Table 21 - Current Reporting Accuracy
FLA Setting Range Operating Range
100% Min. current rating…
720% Max. current rating 50% Min. current rating…
100% Min. current rating
0.4…2.0 A ±10% —
All others ±6% ±10%
IMPORTANT The accuracy specified above is only applicable to non-distorted
sinusoidal currents.