CT for Elect. Watt-Hour Meters DC Tolerant
Toroidal Series

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  • For use in electronic watt-hour meter applications
  • DC current inmunnity
  • Comply to Class 1.0 (IEC10636) standards
  • 120/240V and 50/60 Hz applications
  • DC current capability up to 150 Apk
  • AC current up to 480 Apk for defined errors
  • Epoxy potted finished
FALCO PART
NUMBER		 L(H) @ 50Hz Tol. Turns Ratio Irms max (A) IDC max (A) Ipk rms (A) F(I) % (I) DCR (W) Nom. RB (W)
 T75A11 4.6 ±20% 1:2500 20 20 125 <0.06 3.62 54.0 37.50
 T81C15 3.7 ±15% 1:2500 40 40 215 <0.04 4.15 66.0 10.00
 T87C23 3.0 ±15% 1:2500 60 60 245 <0.04 4.06 55.0 12.50
 T10G20 2.1 ±17% 1:2500 100 100 314 <0.05 4.48 44.0 7.50
 T12A04 1.7 ±17% 1:2500 120 158 480 <0.03 4.07 36.0 6.25

1. L & DCR tested at Ta= 25°C
2. Imax.= Maximum ac primary current with defined errors
3. IDCmax.= Maximum half wave rectified AC amplitude without saturation, F(Idc)<3%
4. Ipk= Maximum achievable AC primary current without saturation for F(I)<1%
5. f(I)= Maximum phase error for Irms < irms max. (IEC1036)
6. F(I)= Maximum amplitude error for Irms < irms max. (IEC1036)
7. RB= Suggested burden resistor
8. Turns tolerance is ± 1% typ
9. Operating Temperature Range: -40°C to +85°C