KONČAR - Medium Voltage Apparatus Inc. last update 10.01.2010.
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Type SPO

MEDIUM VOLTAGE FUSE HOLDERS

for indoor installation

Fuse holders for rated voltages 12, 24 and 28 kV are designed as single-pole units. They are intended for indoor installation and comply with IEC, Publ. 282-1. Fuse holders are adapted to standard medium-voltege HRC fuse links, with standard dimensions 442 mm for 12 kV, 537 mm for 24 kV and 537 mm for 28 kV rated voltage. Head diameter is 45 mm.
Fuse base contacts are mounted on ribbed post insulators, which enables use in the switchgear operating in polluted atmosphere (dust, salt and similar).

On request, the fuse bases can be equipped with auxiliary switch, which is activated by striker mounted on metal base frame. Contacts of auxiliary switch indicate the melting of fuse link.



 

NOTE



Fuse holders are delivered without fuse link.

BASIC TECHNICAL SPECIFICATIONS



Type designation SPO 12-ISPO 24-ISPO 38-I
Rated voltagekV122438
Rated normal current max.A200160100
One minute power frequency withstand voltage to earth
(with or without fuse-link)
kV285070
One minute power frequency withstand voltage across
insulating distance (without fuse-link)
kV326080
Impulse withstand voltage 1,2 / 50 μs to earth
(with or without fuse-link)
kV75125170
Impulse withstand voltage 1,2 / 50 μs across
insulating distance (without fuse-link)
kV85145195
Masskg5,58,510



 
2010-01-10


 
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