D Series Busbar Support Insulators
D series busbar support insulators provide insulated mechanical support using moulded bodies and threaded metal inserts.
- Glass-fibre-reinforced unsaturated polyester BMC or SMC.
- 4 models with heights from 25 to 60 mm.
- Model-specific tensile strength and voltage withstand.
- Thread diameter, depth and torque strength listed together.
- Red as illustrated; other colours on request.
Overview
YOCL ELECTRIC D series busbar support insulators provide insulated mechanical support for busbars using moulded BMC or SMC bodies and threaded metal inserts. The series includes 4 models with heights from 25 to 60 mm.
The D series has shaped bodies with hexagonal end sections. Each model has its own dimensional, voltage withstand and tensile strength data.
Features
- Glass-fibre-reinforced unsaturated polyester BMC or SMC.
- 4 models with 25–60 mm overall heights.
- Threaded metal inserts.
- Model-specific voltage withstand and tensile strength.
- Thread diameter, depth and torque strength listed by configuration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | D |
| Function | Insulated mechanical support for busbars |
| Insulating body | Glass-fibre-reinforced unsaturated polyester BMC or SMC |
| BMC | Bulk Moulding Compound |
| SMC | Sheet Moulding Compound |
| Inserts | Brass; other insert specifications on request |
| Colour | Red as illustrated; other colours on request |
Electrical and Mechanical Data
| Model | Tensile strength (lbf) | Voltage withstand (kV) |
|---|---|---|
| D2525 | 500 | 5 |
| D3030 | 700 | 6 |
| D5040 | 100 | 10 |
| D6060 | 2000 | 12 |
Thread Configurations
| Model | Nominal thread diameter (mm) | Thread depth (mm) | Torque strength (ft·lbf) |
|---|---|---|---|
| D2525 | 8 | 9 | 20 |
| D3030 | 8 | 10 | 30 |
| D5040 | 10 | 15 | 50 |
| D6060 | 10 | 18 | 80 |
Voltage withstand is a test property, not a specified continuous operating voltage. Torque strength is not a recommended installation tightening torque.
Dimension
| Model | Overall height (mm) | Central band height (mm) | End hexagon dimension as shown (mm) | Overall diameter φ (mm) |
|---|---|---|---|---|
| D2525 | 25 | 5 | 20 | 25 |
| D3030 | 30 | 4 | 24 | 30 |
| D5040 | 50 | 10 | 32 | 40 |
| D6060 | 60 | 12 | 50 | 60 |
Use the drawing height and diameter values for each model. D5040 is listed with a 50 mm overall height and φ40 mm overall diameter.
Selection Guide
Choose the full D model using its listed height, diameter, strength and thread data. Confirm the thread form and pitch when ordering; nominal diameter alone does not specify them.
Ordering Information
For a quotation, specify the model, listed nominal thread diameter, quantity, thread form and pitch, insert material, insulating material and colour. Colour, inserts, material properties and thread specifications can be requested.