Hi-vis yellow inherent flame retardant arc flash cargo trousers for electrical, utility and roadside workers needing arc, flame and visibility protection.
- Inherent flame retardant rip stop fabric
- Arc rated - ELIM 9.5 cal/cm2, ATPV 10 cal/cm2, APC 1
- EN ISO 20471 Class 2 hi-vis (smaller sizes Class 1)
- Anti-static to EN 1149
- EN ISO 11612, EN ISO 11611 Class 1, EN 13034
- Top-loading kneepad pockets
- Available in multiple sizes
MAXFR Hi-Vis Yellow Inherent Flame Retardant Arc Flash Cargo Trousers
Hi-vis yellow inherent flame retardant arc flash cargo trousers for electrical, utility and roadside workers needing arc, flame and visibility protection.
- Inherent flame retardant rip stop fabric
- Arc rated - ELIM 9.5 cal/cm2, ATPV 10 cal/cm2, APC 1
- EN ISO 20471 Class 2 hi-vis (smaller sizes Class 1)
- Anti-static to EN 1149
- EN ISO 11612, EN ISO 11611 Class 1, EN 13034
- Top-loading kneepad pockets
- Available in multiple sizes
MAXFR Hi-Vis Yellow Inherent Flame Retardant Arc Flash Cargo Trouser
Hi-vis yellow inherent flame retardant arc flash cargo trousers protect against arc flash, flame and heat while keeping the wearer visible. They are made from lightweight inherent FR rip stop fabric, so the flame resistance is part of the fibre rather than a surface finish. Electrical, utility and roadside teams wear them where one pair of trousers must cover arc, flame, static and visibility risks.
How Top-Loading Kneepad Pockets Keep Kneepads in Place
On many work trousers the kneepads load from the bottom, so they slide out or drop down when the wearer kneels and stands. On site, that leaves the knee unprotected and means stopping to refit the pad. These trousers have external top-loading kneepad pockets, so kneepads go in from the top and stay where they should.
Key Features
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Inherent flame retardant fabric: the flame resistance is part of the fibre, not a finish applied to the surface.
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Arc rated with APC 1: ELIM 9.5 cal/cm2 and ATPV 10 cal/cm2 in open arc testing.
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Anti-static to EN 1149: dissipates static charge when the wearer is earthed, reducing the risk of a spark.
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Hi-vis yellow with retroreflective tape: two bands on each leg for visibility in low light and at the roadside.
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External top-loading kneepad pockets: kneepads go in from the top and do not slide out when kneeling.
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Triple stitching in aramid thread: high strength seams with a bar-tacked crotch panel for hard daily wear.
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Comfort side waist elastication: moves with the wearer, with a large rear belt loop for a work belt.
Who is this for
Trades and roles
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Electricians
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Cable jointers
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Overhead line engineers
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Substation engineers
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Highways maintenance operatives
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Utility engineers
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Maintenance engineers
Industries
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Electricity transmission and distribution
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Utilities
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Highways and street works
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Power generation
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Petrochemical and process
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Infrastructure maintenance
Specifications
| Specification | Detail |
|---|---|
| Product name | MAXFR Hi-Vis Yellow Inherent Flame Retardant Arc Flash Cargo Trousers |
| Product code | CL010007 |
| Garment type | Cargo trousers |
| Protection | Flame retardant, anti-static, electric arc, high visibility, welding, limited chemical splash |
| Open arc test (EN 61482-1-1) | ELIM 9.5 cal/cm2, ATPV 10 cal/cm2 |
| Box test (EN 61482-1-2) | APC 1 (4 kA) |
| Heat and flame | EN ISO 11612, A1, A2, B1, C1, F1 |
| High visibility | EN ISO 20471, Class 2 (smaller sizes Class 1) |
| Welding | EN ISO 11611, Class 1 |
| Chemical splash | EN 13034, limited protection against liquid chemicals |
| Electrostatic | EN 1149, anti-static |
| Fabric | Inherent flame retardant rip stop |
| Stitching | Aramid high strength thread, triple stitched |
| Crotch | Crotch panel with bar tack |
| Waist | Comfort side elastication, large rear belt loop |
| Fly | Plastic zip |
| Pockets | 2 cargo pockets, 2 rear pockets, 2 external top-loading kneepad pockets |
| Reflective tape | Retroreflective tape, 2 bands on each leg |
| Brand | MAXFR |
| Colour | Hi-vis yellow |
| Sizes | 28R to 40R |
Size Selection
| Product code | Size | To fit waist |
|---|---|---|
| CL010007-28R | 28 Regular | 71.1 cm (28 in) |
| CL010007-30R | 30 Regular | 76.2 cm (30 in) |
| CL010007-32R | 32 Regular | 81.3 cm (32 in) |
| CL010007-34R | 34 Regular | 86.4 cm (34 in) |
| CL010007-36R | 36 Regular | 91.4 cm (36 in) |
| CL010007-38R | 38 Regular | 96.5 cm (38 in) |
| CL010007-40R | 40 Regular | 102 cm (40 in) |
Other Sizes in the Range, Contact Our Team to Order
| Size | To fit waist |
|---|---|
| 28 to 56 Short | 71.1 to 142.2 cm (28 to 56 in) |
| 42 to 56 Regular | 106.7 to 142.2 cm (42 to 56 in) |
| 28 to 56 Tall | 71.1 to 142.2 cm (28 to 56 in) |
Compatibility
| Base material, tool or condition | Suitability |
|---|---|
| Assessed arc risk up to 9.5 cal/cm2 and APC 1 | Suitable as part of a full arc-rated outfit |
| Arc risk above 9.5 cal/cm2 or requiring APC 2 | Not recommended, use clothing rated for the assessed incident energy |
| Roadside and low-light work | Suitable, Class 2 hi-vis with retroreflective tape (smaller sizes Class 1) |
| Full-body Class 3 requirement | Suitable when worn with a Class 3 hi-vis upper garment |
| Work on or near the railway | Not recommended, rail sites require orange to RIS-3279-TOM |
| Lower-risk welding and allied processes | Suitable, EN ISO 11611 Class 1 |
| Heavy welding with high spatter | Not recommended, use Class 2 welding clothing |
| Light splashes of liquid chemicals | Suitable for limited protection to EN 13034 |
| Heavy chemical exposure or immersion | Not recommended, use chemical protective clothing |
| Areas where static build-up must be controlled | Suitable with an anti-static upper garment and anti-static footwear |
| Kneeling work | Suitable with kneepads fitted in the kneepad pockets |
| Firefighting | Not recommended, this is industrial heat and flame clothing |
Typical Users and Projects
Network, utility and highways teams wear these trousers for outdoor electrical work where they must also be seen. They suit cable jointing in the street, substation work and overhead line maintenance, often in low light. Wearers are usually trained operatives working under an arc flash risk assessment and site PPE rules.
Typical applications
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Cable jointing in excavations at the roadside, kneeling with kneepads fitted.
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Switching and inspection work in substations where an arc risk has been assessed.
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Overhead line and street lighting maintenance in low light.
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Utility network repairs on highways and in street works.
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Maintenance on process sites where flame, static and splash risks must be controlled.
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Light welding and cutting tasks during maintenance work.
How to use
Step 1: Check that the incident energy in your arc flash risk assessment is within the trousers’ ELIM of 9.5 cal/cm2.
Step 2: Choose the size by waist measurement using the Size Selection table.
Step 3: Wear an FR or natural-fibre base layer underneath, never polyester or nylon.
Step 4: Fit kneepads from the top into the kneepad pockets before kneeling work.
Step 5: Wear a Class 3 hi-vis FR upper garment where full-body Class 3 visibility is required.
Step 6: Add arc-rated gloves, face protection and anti-static footwear as your risk assessment requires.
Step 7: Check the trousers before each shift for holes, worn seams, contamination or damaged reflective tape.
Common mistakes
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Wearing them on rail sites, where orange to RIS-3279-TOM is required.
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Assuming every size is Class 2, when smaller sizes are certified to Class 1.
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Wearing non-FR thermal leggings underneath in cold weather.
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Kneeling without kneepads fitted in the kneepad pockets.
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Wearing them when soiled with oil or grease, which can reduce protection.
Safety
Isolation comes first. The Electricity at Work Regulations 1989 only allow live work where it is unreasonable to make equipment dead. Choose the outfit from a documented arc flash risk assessment. For roadside work, follow the hi-vis requirements of the site or the principal contractor.
Maintenance
Wash and dry following the care label on the garment, separately from ordinary clothing. Store clean and dry. Replace the trousers if they have holes, burns, contamination that will not wash out, or faded fabric and cracked reflective tape.
Frequently Asked Questions
Q: What arc rating do these trousers have?
A: In open arc testing to EN 61482-1-1 they have an ELIM of 9.5 cal/cm2 and an ATPV of 10 cal/cm2. ELIM is the incident energy at which no second-degree burn is predicted, while ATPV is the point at which there is a 50% chance of one. In the box test to EN 61482-1-2 they reach APC 1, tested at 4 kA. Use the ELIM when matching them to your risk assessment.
Q: What does 32R mean on these trousers?
A: The 32 is the to-fit waist in inches, which is 81.3 cm. The R stands for Regular leg length. Measure your waist where you wear your trousers and choose the size that matches.
Q: What do A1, A2, B1, C1 and F1 mean under EN ISO 11612?
A: A1 and A2 mean the fabric limits flame spread when a flame touches its surface (A1) and its edge (A2). B1 is protection against convective heat, such as hot gases, at level 1. C1 is protection against radiant heat at level 1. F1 is protection against contact heat at level 1.
Q: Are all sizes Class 2 hi-vis?
A: The trousers are certified to EN ISO 20471 Class 2, but the smaller sizes are certified to Class 1. Smaller garments have less fluorescent fabric and tape, which sets the class. Check the class on the garment label if your site requires Class 2 legwear.
Q: What are these trousers not suitable for?
A: They are not suitable for rail sites that require orange to RIS-3279-TOM. They are not for heavy welding, heavy chemical exposure or firefighting. They are not suitable where the assessed arc incident energy is above 9.5 cal/cm2 or calls for APC 2.
Q: How are these different from the navy version?
A: Both are inherent flame retardant arc flash cargo trousers with the same arc ratings. The hi-vis yellow version adds EN ISO 20471 certification and retroreflective tape for roadside and low-light work. The navy version suits substations and plant rooms where hi-vis is not required.
Q: How do I get full-body Class 3 visibility?
A: Wear the trousers with a Class 3 hi-vis upper garment, such as a jacket or sweatshirt. Under EN ISO 20471, the combined outfit can then meet Class 3. Make sure the upper garment is also flame retardant and arc rated.
