The Fristads Flamestat 4175 ATHS is an arc-rated hi-vis jacket for substation, switchroom and utility work. Tested to EN 61482-1-2 Class 1 and EN 61482-1-1 (EBT 10.5 cal/cm²), it also meets EN ISO 20471 hi-vis Class 3 in sizes S-3XL. Suitable for authorised persons and contractors needing visible flame and arc protection.
Fristads Flamestat High Vis Jacket 4175 ATHS, Hi-Vis Yellow/Navy
The Fristads Flamestat 4175 ATHS is an arc-rated hi-vis jacket for substation and switchroom work where high visibility is required alongside electric arc protection. It is approved to EN 61482-1-2 Class 1 (box test) and EN 61482-1-1 open arc with an EBT of 10.5 cal/cm², and certified to EN ISO 20471 Class 3 for sizes S-3XL (Class 2 for size XS).
Arc Ratings and Certifications
| Standard | Rating |
|---|---|
| EN 61482-1-2 (box test) | Class 1 |
| EN 61482-1-1 (open arc) | EBT 10.5 cal/cm², HAF 81.4% |
| EN ISO 11612 | A1 B1 C1 F1 flame and heat protection |
| EN 1149-5 | Electrostatic dissipation (antistatic fibre) |
| EN 13034 | Type PB [6] limited chemical splash protection |
| EN ISO 20471 | Class 3 (S-3XL), Class 2 (XS) |
The fabric is a 45% modacrylic, 35% cotton, 18% polyamide blend with 2% antistatic fibre at 300 g/m², OEKO-TEX certified and leasing laundry-tested to ISO 15797. The datasheet notes that certified garment combinations reach EN 61482-1-2 Class 2, so ask about combinations when you enquire. If your switchroom label states a higher incident energy, our arc flash studies establish the cal/cm² value, and the arc flash information hub explains arc rated versus flame resistant ratings.
Design and Features
- Dirt, oil and water repellent outer fabric
- Front placket zip to the top of the collar with concealed snap fastening
- Two chest pockets, one zipped and one bellowed with pen strap, inside D-ring and concealed snap
- Two front pockets with concealed snaps, an inside button pocket and an inside mobile phone pocket
- Reflective shoulder detailing and reflective tape around the sleeves
- Extended back with adjustable waist and cuffs
Browse the full arc flash protection range for matching trousers and switching suits.
FAQs
What arc rating does the 4175 ATHS jacket carry?
It is approved to EN 61482-1-2 Class 1 (box test) and EN 61482-1-1 open arc with an EBT of 10.5 cal/cm² and HAF of 81.4%. The manufacturer also lists certified garment combinations reaching EN 61482-1-2 Class 2, so ask us for the combination details when you enquire.
Is this jacket hi-vis Class 3?
For sizes S to 3XL it meets EN ISO 20471 Class 3. Size XS meets Class 2. Check the size you intend to issue before specifying Class 3 for your team.
Can the jacket be industrially laundered?
Yes. The garment is leasing laundry-tested to ISO 15797, which suits rental and industrial laundering contracts. Follow the care label to keep the flame and arc ratings intact over repeated washes.
Not exactly what you are looking for? Contact us with your exact requirements, we’re happy to help.



