Technical Data P44x/EN TD/E33
MiCOM P441/P442 & P444
Page 5/30
1. RATINGS
1.1 Currents
In = 1A or 5A ac rms (dual rated).
Separate terminals are provided for the 1A and 5A windings, with the neutral input of each
winding sharing one terminal.
CT Type Operating range
Standard
0 to 64
In
Sensitive
0 to 2
In
All current inputs will withstand the following, with any current function setting:
Withstand Duration
4 Ι
n
Continuous rating
4.5 Ι
n
10 minutes
5 Ι
n
5 minutes
6 Ι
n
3 minutes
7 Ι
n
2 minutes
30 Ι
n
10 seconds
50 Ι
n
3 seconds
100 Ι
n
1 second
Pass Criteria
Winding temperatures <105° C
Dielectric withstand and insulation
resistance unimpaired
1.2 Voltages
Nominal Voltage Operating range
100/120V
ph - ph
rms 0 to 200V
ph - ph
rms
Duration Withstand
(Vn = 100/120V)
Continuous rating (2Vn) 240Vph - ph rms
10 seconds (2.6Vn) 312Vph - ph rms
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