Maximum operating range
Cortec option 1 (DC only)
19 to 65 V DC
Cortec option 2 (rated for AC or DC operation)
48 to 110 V DC
40 to 100 V AC rms
Cortec option 3 (rated for aAC or DC operation)
110 to 250 V DC
100 to 240 V AC rms
Frequency range for AC supply 45 to 65 Hz
Ripple <15% for a DC supply (compliant with IEC 60255-11:2008)
Power up time < 11 seconds
8.5 NOMINAL BURDEN
Quiescent burden 20TE 5 W max.
30TE 6 W max.
30TE with 2nd rear
communications
6.2 W max.
30TE with Ethernet or TCS 7 W max.
Additions for energised relay outputs 0.26 W per output relay
Opto-input burden 24 V 0.065 W max.
48 V 0.125 W max.
110 V 0.36 W max.
220 V 0.9 W max.
8.6 POWER SUPPLY INTERRUPTION
Standard
IEC 60255-11:2008 (DC)
IEC 61000-4-11:2004 (AC)
24-48V DC SUPPLY
100% interruption without de-energising
20 ms at 24 V (half and full load)
50 ms at 36 V (half and full load)
100 ms at 48 V (half and full load)
48-110V DC SUPPLY
100% interruption without de-energising
20 ms at 36V (half and full load)
50 ms at 60 V (half and full load)
100 ms at 72 V (half load)
100 ms at 85 V (full load)
200 ms at 110 V (half and full load)
110-250V DC SUPPLY
100% interruption without de-energising
20 ms at 85 V (half load)
50 ms at 110 V (half load)
50 ms at 98 V (full load)
100 ms at 160 V (half load)
100 ms at 135 V (full load)
200 ms at 210 V (half load)
200 ms at 174 V (full load)
40-100V AC SUPPLY
100% voltage dip without de-energising
50 ms at 27 V (half load)
10 ms at 27 V (full load)
MiCOM P747 Chapter 16 - Technical Specifications
P747-TM-EN-1 397
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