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Semiconductor fuses
Semiconductor (AC) fuses
Protistor Square-body Fuses
®
PSC aR sizes 3x - 450V to 700 VAC
Main characteristics
450 TO 700VAC / 63 TO 2800A Recognized
2
Exceptionally low I T, Watt losses.
Non-magnetic construction,
Highly reliable low voltage
Trip-indicator system, conformity to UL,
IEC, DIN and VDE standards.
Increased technical performance
• Highter ratings
• Reduction in volume and weight
This fuse preselection table indicates, for each size:
- rated current (or rating) In
2
- pre-arcing I t (I tp) at 1 ms
2
2
- total operating I t (I tt) at 660 V, f=50Hz cos ϕ=0.15, and for a total operating time from 8 to 10 ms
2
- dissipated power Pn at the rated current In, and at 0.8 In, in steady state
- breaking capacity at various voltages, checked by tests
made in accordance with IEC and American standards.
SCAC68 12/04