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Drop-out Fuse Cutout-HRW11

    This series of outdoor AC high-voltage drop-out fuse cutouts is suitable for power supply disconnection, overload protection, and short-circuit protection in outdoor distribution networks and distribution transformers rated at 50~60Hz and 10kV. 

  • Product Details
TypeRated voltage
(kV)
Maximum operating voltage
(kV)
Rated current
(A)
Breaking current
(kA)
Power frequency dry withstand voltage
(kV)
Power frequency wet withstand voltage
(kV)
Impulse voltage
(kV)
Creepage distance
(mm)
Weight
(kg)
HRW11-12/10010121006.34230753403.9
HRW11-12/200101220084230753404.1


1.Product Overview:

  1)The HRW11-12 drop-out fuse cutout ranks at the highest level among international cutout products after several improvements and optimizations.

  2)It features a firm and strong structure with accurate fitting.

  3)The interrupting current capability is up to 12.5kA.

2.Condition of Use:

  1)Ambient air temperatures: Within the range of -30°C to +40°C.

  2)Altitude above sea level: Not exceeding 1,000m (if higher, adjustments are needed).

  3)Frequency of the A.C. power supply: Not less than 48Hz and not exceeding 52Hz.

3.Structure features:

  1)The fuse consists of a base and an arc-extinguishing device.

  2)Working contacts are designed in a bridge shape.

  3)The fuse tube has a spring bracket at the lower end to maintain tension, ensuring self-locking when the arc-extinguishing tube is in the closed position.

  4)During overload or short circuit, the fuse wire melts, and the spring bracket rapidly pulls the fuse wire out of the arc-extinguishing tube, minimizing arcing time and preserving arc-extinguishing material.



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