CONTACTORS TYPE NF AND NFS

CONTACTORS FOR MEDIUM FREQUENCY UP TO 500Hz, 1200 V

These contactors, specially designed for the use in the control of induction furnaces, are constructed in two versions with different characteristics suitable for the different frequencies of utilization.

a) Contactors type NF for frequencies up to 250Hz:
They are directly derived from the standard bar-contactors of the N series and constructed with care to avoid dangerous overheating and to withstand high voltage;
b) Contactors type NFS for frequency from 250 to 500 Hz:
These are derived from the NF series by the fitting of laminated magnetic blowing circuits and the use of non-magnetic metals for all the parts subject to the circulation of induced eddy current (fixed and movable axles, bolts, etc.);

Utilization category up to 125Hz and up to 500Hz
Type NF & NFS
SIZE
(Ith@50Hz)
Poles
Nom.
Volt.
[V]
Rated Operational Current [A]
Type NF Type NFS
100Hz 150Hz 250Hz 250Hz 350Hz 500Hz
85 1 2 600 1200 27 25 23 25 18 16
125 1 2 600 1200 75 70 60 70 50 45
190 1 2 600 1200 115 105 95 105 75 65
270 1 2 600 1200 160 150 135 150 110 95
350 1 2 600 1200 210 190 175 190 140 120
550 1 2 600 1200 330 300 275 300 220 195
650 1 2 600 1200 390 360 325 360 260 230
800 1 2 600 1200 480 440 400 440 320 280
1000 1 2 600 1200 600 550 500 550 400 350
1250 1 2 600 1200 750 700 600 700 500 450

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Electrical Characteristics | Overall Dimensions | Contactors type TAN | Contactors type TDN
Contactors type TADN | Contactors type NF, NFS | Contactors type CN

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