TSM Series Busbar Support Insulators
TSM busbar support insulators provide insulated mechanical support for busbars using a moulded body and threaded metal inserts.
- 8 models; heights from 20 to 70 mm.
- Glass-fibre-reinforced unsaturated polyester BMC or SMC.
- Nominal thread diameters: 5, 6, 8, 10 mm, depending on configuration.
- Model-specific voltage withstand and tensile strength.
- Thread depth and torque strength listed together for each configuration.
Overview
YOCL ELECTRIC TSM busbar support insulators provide insulated mechanical support for busbars. The insulating body is described as glass-fibre-reinforced unsaturated polyester moulding compound, with BMC or SMC configurations and metal threaded inserts.
This series covers 8 models with heights of 20–70 mm. The TSM model names distinguish different body and thread configurations, including three separate 40 mm-high models.
Features
- Moulded insulating body with threaded inserts for busbar support mounting.
- 8 distinct models with heights of 20–70 mm.
- BMC or SMC material configurations.
- Model-specific voltage withstand and tensile strength.
- Thread diameter, depth and torque strength paired by configuration.
- Colour, inserts, material properties and thread specifications can be requested.
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | TSM |
| 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 |
| Height range | 20–70 mm |
| Nominal thread diameters | 5, 6, 8, 10 mm; use the listed configurations |
| Additional material option | DMC on request |
| Thread form options | Metric, American and imperial configurations on request |
Electrical and Mechanical Data
| Model | Tensile strength (lbf) | Voltage withstand (kV) |
|---|---|---|
| TSM-20 | 300 | 5 |
| TSM-30 | 500 | 8 |
| TSM-402 | 500 | 8 |
| TSM-401 | 700 | 8 |
| TSM-40 | 1000 | 8 |
| TSM-50 | 1500 | 15 |
| TSM-55 | 2000 | 15 |
| TSM-70 | 1500 | 25 |
Thread Configurations
| Model | Nominal thread diameter (mm) | Thread depth (mm) | Torque strength (ft·lbf) |
|---|---|---|---|
| TSM-20 | 5 | 7 | 4 |
| TSM-30 | 6 | 10 | 8 |
| TSM-402 | 6 | 13 | 10 |
| TSM-401 | 8 | 13 | 20 |
| TSM-40 | 10 | 14 | 30 |
| TSM-50 | 10 | 17 | 40 |
| TSM-55 | 10 | 17 | 50 |
| TSM-70 | 10 | 17 | 40 |
Voltage values are the listed withstand figures, not a specified continuous operating voltage. Torque strength values are not recommended installation tightening torques. Test conditions and duration are not provided.
Dimension
| Model | Overall height (mm) | Central band height (mm) | Marked diameter φ (mm) | Overall plan span as shown (mm) |
|---|---|---|---|---|
| TSM-20 | 20 | 6 | 15 | 17 |
| TSM-30 | 30 | 7 | 26 | 30 |
| TSM-402 | 40 | 8 | 24 | 30 |
| TSM-401 | 40 | 7 | 34 | 40 |
| TSM-40 | 40 | 8 | 41 | 50 |
| TSM-50 | 50 | 10 | 44 | 55 |
| TSM-55 | 55 | 10 | 40 | 60 |
| TSM-70 | 70 | 10 | 39 | 50 |
The diameter and hexagonal/plan dimensions are separate drawing labels and are not interchangeable. Dimensions are transcribed from the supplied labels; no tolerances or thread pitches are specified.
Selection Guide
TSM-402, TSM-401 and TSM-40 all have a listed height of 40 mm, but differ in diameter, plan span, nominal thread diameter and strength. Select by the full model name and its paired specifications; do not treat these three models as interchangeable.
Ordering Information
For a quotation, specify the TSM model, required quantity, thread form, insert material, insulating material and colour. Custom configurations for colour, inserts, material properties and threads can be requested.