TRANEMO 6021 81 NON-METAL ARC FLASH TROUSERS - Class 1, 9.5 CAL/CM²

Tranemo 6021 81 Non-Metal Arc Flash Trousers

The Tranemo 6021 81 is a non-metal, flame retardant and arc rated trouser for electricians, authorised persons and maintenance engineers working in substations and switchrooms where an arc flash hazard has been identified. It is certified to IEC 61482-2 Class 1 (box test) with an EBT50 of 9.5 cal/cm², so it sits comfortably in the lower-to-mid incident energy range typical of many LV and MV switching tasks.

The fabric is Tranemo’s Tera TX at 260 g/m², with an LOI of 29.8%. Because the garment is entirely non-metal, there are no zips, studs or fasteners that can conduct heat or current against the skin in an arc event, a detail that matters more than people expect.

Standards and Ratings

Practical Features

• Non-metal construction throughout, no conductive hardware against the skin
• Front pockets, hip pockets with flaps and a cargo pocket with flap
• Mobile phone pocket, hidden keyring holder, tool strap and ruler pocket
• Shaped knees with adjustable inside kneepad pockets
• Reflective stripes on the legs for low-light switchroom and site work

The shaped knees and kneepad pockets are worth having if your team spends time kneeling at low-level panels or cable trenches. Pair these trousers with a matching arc rated jacket or coverall from our arc flash protection range so the whole outfit carries a consistent rating.

FAQs

Is 9.5 cal/cm² enough for our switchroom?

That depends on the incident energy at each point of work, which should come from an arc flash study or a competent assessment. Class 1 with an EBT50 of 9.5 cal/cm² suits tasks where calculated incident energy is at or below that figure. If your labels show higher values, you need a higher rated garment.

What does non-metal mean on an arc flash trouser?

Every fastener and component is non-metallic, so nothing on the garment can heat up, melt or conduct against the wearer during an arc event. It also avoids issues around live working where metal hardware could bridge contacts.

Can these be washed at industrial laundries?

The fabric is flame retardant and designed for workwear laundering, but always follow the washing instructions on the garment label and manufacturer guidance. Incorrect laundering, particularly with bleach, can degrade flame retardant performance over time.

Not exactly what you are looking for? Contact us with your exact requirements, we’re happy to help.