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IEK stepped insulators are designed for rigid mounting and insulation of busbars inside electrical cabinets, busbar bridges, and other equipment.
The insulators can be used in DC and AC electrical equipment with a frequency of 50 Hz and a voltage up to 1000 V, and guarantee the absence of breakdown between busbars.
The insulator housing is made of a special, impact-resistant, non-flammable polymer with high electrical resistance properties.
Weight
520 кг
Material type/grade
Glass-fibre reinforced polyamide
Lightning impulse withstand voltage
9.0
Height
132.0 мм
Depth
30.0 мм
Hole diameter for fastening bolts in busbars
9.0
Thread length
15 мм
Number of bolts per insulator
4
Number of poles
4
Short-time power-frequency withstand voltage
2.5
Maximum design current
450 А
Material
Polymer material
Busbar spacing
33 мм
Metric thread size
8
Tightening torque of busbar fastening bolts
10.0
Power-frequency insulation breakdown voltage
8.0
Rated voltage
660 В
Bus pack 5(3), 10(2)
No
Flexural strength
125
Breaking torque
50
Operating temperature from
-60...80 град.C
Design type
Stepped insulator
Busbar thickness
- мм
Color
Red
Colour
Red
Width
132.0 мм
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