The Tranemo 6020 81 is a non-metal arc flash trouser in Tera TX fabric (260 g/m²), rated IEC 61482-2 Class 1 with an EBT50 of 9.5 cal/cm² and certified to EN ISO 11612 A1 B1 C1 F1, EN 1149-5 and EN 13034 type PB[6]. For electricians, authorised persons and maintenance teams working around live switchgear.
Tranemo 6020 81 Non-Metal Arc Flash Trousers, Class 1, 9.5 cal/cm²
The Tranemo 6020 81 is a non-metal flame retardant trouser for arc flash and heat-risk work, built in Tranemo’s Tera TX fabric at 260 g/m². It is rated to IEC 61482-2 Class 1 with an EBT50 of 9.5 cal/cm², so it suits switching and maintenance tasks where the incident energy on the label sits within that rating. No metal components means nothing on the garment to conduct, heat up, or become a projectile in an arc event.
Standards and Ratings
| Standard / Property | Rating |
|---|---|
| IEC 61482-2 (arc rating) | Class 1, EBT50: 9.5 cal/cm² |
| EN ISO 11612 (heat and flame) | A1 B1 C1 F1 |
| EN 1149-5 (electrostatic) | Certified |
| EN 13034 (liquid chemicals) | Type PB[6] |
| Fabric | Tera TX, 260 g/m², LOI 29.8% |
| Colour | Navy (03) |
| Sizes | 30″-50″ Regular, 32″-40″ Tall, 34″-48″ Short |
Features and Applications
- Non-metal construction throughout, safe around energised switchgear
- Front pockets, hip and cargo pockets with flaps, ruler pocket, mobile phone pocket, hidden keyring holder and tool strap
- Shaped knees with adjustable inside kneepad pockets, useful for cable work and floor-level panel tasks
- Suited to MV/LV switching, switchroom maintenance, data centre and pharmaceutical plant electrical work
Pair these trousers with a matching arc-rated jacket or coverall from our arc flash protection range, and check the garment rating against your incident energy study. If you are unsure how arc ratings are determined, our guide on what is arc flash explains the basics, and we can also carry out an arc flash study for your site.
FAQs
What does Class 1, 9.5 cal/cm² mean on these trousers?
Class 1 under IEC 61482-2 means the fabric has passed the box test at 4 kA. The EBT50 figure of 9.5 cal/cm² is the open-arc result, indicating the incident energy level at which there is a 50% probability of the fabric breaking open. Match the garment to the incident energy shown on your equipment labels.
Are these trousers suitable for antistatic environments?
Yes. They are certified to EN 1149-5 for electrostatic properties, which covers use where static discharge is a concern, such as around sensitive equipment or potentially explosive atmospheres, provided the rest of your PPE system is also compliant.
Can I get kneepads for these trousers?
The trousers have shaped knees with adjustable inside kneepad pockets, so kneepads can be inserted and positioned to suit the wearer. Contact us if you need compatible kneepads or advice on the full Tranemo range.
Not exactly what you are looking for? Contact us with your exact requirements, we’re happy to help.



