📋 Description
Used product. Lot of 10 electrical support and spacer insulators featuring a cylindrical body with a central hexagonal section, made of glass-fibre-reinforced thermosetting polyester resin. The body is red, approximately similar to RAL 3002.
It is fitted with two M8 female threaded metal inserts, positioned at opposite ends, made of either zinc-plated steel or brass. The central hexagonal section, with a wrench size of CH 32 mm, provides a firm grip and facilitates installation and tightening using a standard wrench.
This component is designed to support and space conductive parts, such as copper or aluminium busbars, inside electrical panels, transformer substations and industrial equipment.
🏭 Applications
- Industrial and power distribution electrical panels.
- Support and spacing of copper or aluminium busbars.
- Transformer substations and electrical distribution systems.
- Insulating supports for industrial equipment.
- Low-voltage distribution systems.
⚙️ Dimensional and Technical Specifications
| Feature |
Value |
| Total Height (H) |
34–35 mm |
| Hexagon Wrench Size |
CH 32 mm |
| Insert Thread |
M8 |
| Usable Thread Depth |
13 mm |
| Insert Type |
Female threaded at both ends |
| Body Material |
Glass-fibre-reinforced thermosetting polyester resin |
| Insert Material |
Zinc-plated steel or brass (to be verified) |
| Colour |
Red, approximately RAL 3002 |
⚡ Voltage and Insulation Values
The insulator is designed to electrically separate conductive parts from supporting structures and metal frameworks.
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Rated insulation voltage (Ui): up to 1000 V AC/DC, as an indicative value for this type of component.
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Power-frequency withstand voltage: depends on the model and geometry; some comparable insulators can exceed 10 kV in insulation tests.
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Indicative operating temperature: from -40 °C to +130/+135 °C.
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Self-extinguishing properties: some reinforced polyester versions are classified UL94-V0.
Please note: voltage ratings, temperatures and UL94-V0 classification are indicative characteristics of certain comparable insulator ranges. They cannot be certified for the photographed component without a manufacturer's marking, product code or technical datasheet.
🏋️ Mechanical Strength Characteristics
The glass-fibre-reinforced polyester resin structure is designed to provide rigidity and stability in electrical support applications.
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Resistance to tensile stress.
-
Resistance to bending.
-
Resistance to compression.
- Good dimensional and mechanical stability.
- Suitable, when correctly sized and installed, for supporting conductors subject to electrodynamic forces.
Maximum mechanical loads and short-circuit withstand capability must be verified against the technical datasheet for the exact model.
🔧 Additional Tightening and Strength Data
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Thread: M8.
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Usable thread depth: 13 mm.
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Indicative maximum torque: up to 18 Nm for some comparable models with M8 inserts.
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Indicative tightening range: 15–18 Nm, not to be considered a certified value for this component.
For installation, it is advisable to use a torque wrench and follow the torque specified by the manufacturer. The actual torque depends on the insert material, its geometry and how it is anchored in the resin.
🧱 Materials and Construction Features
-
Body made of glass-fibre-reinforced thermosetting polyester resin.
- Red colour.
-
Two M8 female threaded metal inserts.
-
Central hexagonal section, CH 32 mm, for easier gripping.
- Compact construction for electrical support and spacing applications.
🔧 Main Functions
-
Electrical insulation: helps prevent accidental current flow to supporting structures and metal frameworks.
-
Mechanical support: supports and maintains spacing between live conductors, such as copper or aluminium busbars.
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Resistance to mechanical stress: designed to withstand tensile, bending and compression forces; actual load capacity depends on the model specifications.
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Fastening: allows connection using two M8 female inserts, while the hexagonal section facilitates tightening during installation.
✅ Advantages
-
Dual M8 female threaded inserts.
-
13 mm usable thread depth.
- Reinforced insulating material body.
-
Central hexagonal section, CH 32 mm.
- Compact and robust construction.
- Suitable for busbar supports and electrical distribution equipment.
📦 Product Condition
Used component, with possible surface marks resulting from previous handling or use. It is recommended to check the condition of the insulating body and threaded inserts before installation.
🛒 Sale Contents
- Red electrical support insulators with dual M8 female threaded inserts.
- Lot quantity: 10 pieces.
📋 Summary
Electrical support and spacer insulator made of glass-fibre-reinforced polyester resin, red in colour, with dual M8 female threaded inserts, a height of 34–35 mm, a central hexagonal section measuring CH 32 mm and a usable thread depth of 13 mm. Suitable for supporting and spacing busbars, electrical panels and industrial equipment.
