Insulating Matting | Class 4 HV High Voltage 36kV | BS EN 61111
Class 4 Matting
The COBAswitch Class 4 Matting provides reliable electrical insulation for high-voltage (HV) environments. Designed for substations, HV switchgear areas, and heavy-duty electrical installations, this mat ensures high-level operator safety and complies with BS EN 61111:2009 standards.
The IEC61111 Class 4 insulating matting is fully certified and tested to 50 kV with a recommended safety working voltage of 36 kV.
Read Blog ➡ Insulating Matting – IEC 61111 Specifications & Selection For Switchboard Matting
Why Choose Class 4 Mats?
- Operator Safety: Protects against electrical shocks up to 36 kV
- Standards Compliant: Fully tested to BS EN 61111:2009 / IEC 61111:2009
- Durable Material: EPDM rubber construction for heavy-duty insulation
- Anti-Slip Surface: Ribbed for grip and operator comfort
- Easy Installation: Loose-lay – no adhesives or fixings required
- Temperature Range: -30°C to +80°C for industrial HV environments
Class 4 Matting Product Specifications
| Specification | Details |
|---|---|
| Class | Class 4 |
| Thickness | 5 mm |
| Working Voltage | 36 kV |
| Withstand Tested To | 50 kV |
| Material | EPDM Rubber |
| Surface Finish | Fine fluted ribs (anti-slip) |
| Roll Length | 10 m |
| Installation | Loose-lay, no adhesives or fixings required |
| Environment | Indoor/outdoor HV areas |
Applications for BS EN 61111 Certified Insulating Mats
- HV switchgear and substations
- Industrial electrical installations
- Power generation & distribution equipment rooms
- HV maintenance zones and transformer areas
Gallery
Insulating Matting FAQs
What class of insulating matting do I need?
For Class 4, the working voltage is 36 kV — appropriate for HV substations, switchgear and heavy-duty installations. Ideal for HV switch rooms, transformer areas, and high-voltage distribution environments.
What’s the difference between Class 0, 2, and 4?
The classes indicate voltage rating, thickness, and protection level:
- Class 0 → 3 mm, up to 1 kV (LV environments)
- Class 2 → 4 mm, up to 17 kV (MV environments)
- Class 4 → 5 mm, up to 36 kV (HV environments)
Class 4 is the thickest and offers highest dielectric strength — essential for HV sites.
Can Class 4 insulating mats be used outdoors?
Yes — Class 4 mats are made of EPDM rubber which is:
- Moisture and humidity resistant
- UV and ozone resistant
- Durable in low temperatures
Suitable for outdoor HV switchgear, substations, and exposed transformer areas.
Do Class 4 mats comply with BS EN 61111?
Yes. Each mat is fully tested to BS EN 61111:2009 including:
- Dielectric tests
- Proof voltage tests
- Thickness verification
- Batch marking and identification
Ensuring consistent operator safety in HV environments.
BS61111-Compliant Insulating Mats for LV & HV Electrical SafetyDownload
