Fuses+holders for protection of 3-phase+N Type 1 AC SPD

Part Number 64048
  • Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD
  • For Type 1 SPD
  • Surge current withstand: 12.5 kA (@10/350µs)
  • Very compact
  • Fuses included
  • Remote signaling and status signaling

The SFD range has been especially designed to associated with Type 1 SPDs. These very specific fuses are able to conduct huge surge currents in rather small dimensions to protect Type 1 SPDs against harsh current circuit failures. In order to comply IEC 61643-11 standards, AC power SPD must be protected against short circuit failures: these specific fusing disconnectors must be installed in the SPD branch.

AC system
Max. AC operating voltage
Uc 500 Vac
Nominal discharge current
15 x 8/20 µs impulses
In 50 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
Imax 80 kA
Impulse current by pole
max. withstand 10/350µs by pole
Iimp 12.5 kA
Equivalent rated AC current
Equivalent 125 A (gL/gG)
Breaking capacity
100 000 A
Residual voltage
Up < 0.4 kV @ 12.5 kA
Fuse configuration
Cylindrical 14x51 mm
Symmetrical rail 35 mm (EN 60715)
Accessory(s) provided
Fuse(s) included
Operating temperature
Tu -40/+85°C
Protection rating
Spare module(s)
Remote signaling of disconnection
See diagram
0.5 kg
Standards compliance
EN 61643-11 /IEC 61643-11 /EN 60269-1/EN 60269-2/IEC 60269-1/IEC 60269-2