The insulator IO-10-3.75 U3 is designed for insulation and mechanical fastening of live parts in electrical devices and for installation of current-carrying busbars of switchgears of power stations and substations with a rated voltage of 10 kV and is used indoors.
The IO-10-3.75 U3 insulator is manufactured in two versions depending on the number of holes on the top. The execution option is designated by Roman numerals I or II.
The insulator is used to complete high-voltage fuses such as PC, PKT, which are installed indoors or in cells.
Key Features
Rated voltage up to 10kV
High-strength electrical porcelain body
M8 upper bolt and M12 lower bolt configuration
Minimum cantilever failure load of 3.75kN
Excellent dielectric properties
Resistant to moisture and electrical tracking
Suitable for indoor switchgear and substation equipment
Long service life with minimal maintenance
Technical Specifications
Parameter
Value
Model
IO-10-3.75 U3
Insulator Type
Porcelain Support Insulator
Rated Voltage
10 kV
Maximum System Voltage
12 kV
Power Frequency Test Voltage
80 kV
Minimum Cantilever Failure Load
3.75 kN
Upper Fitting
M8 Bolt
Lower Fitting
M12 Bolt
Construction Height
120 mm
Diameter
82 mm
Weight
1.25–1.40 kg
Material
Electrical Porcelain
Installation
Indoor
Climatic Category
U3
Frequency
50/60 Hz
Applications
Medium-voltage switchgear
Electrical substations
Busbar support systems
High-voltage fuse holders
Indoor disconnect switches
Distribution panels
Power stations and industrial electrical equipment
Current-carrying conductor support structures
Изолятор ИО-10-3,75 I У3 Изолятор ИО-10-3,75 II У3