)
arc flash trousers
end-to-end arc flash clothing suppliers for electrical environments
Specialising in arc flash clothing protection, alsico leverages decades of expertise to provide innovative, reliable, and high-quality arc flash PPE clothing solutions that keep workers safe in the most challenging environments.
leading suppliers of arc flash trousers
Our arc flash trousers are designed for protection, comfort, and unrestricted movement—meeting the demands of high-risk environments without compromising on wearability.
Manufactured using advanced arc-rated fabrics and tested to high ELIM arc ratings, these trousers meet key EN standards for electrical protection, heat and flame, and anti-static performance. Ergonomic design supports natural movement throughout the day, while features such as kneepad pockets, reinforced seams, and secure storage options make them ideal for active, hands-on roles.
Available in both male and female fits, our arc flash trousers combine technical performance with wearer comfort. In addition to our stocked range, we also offer custom-made garments with the latest stretch technology—designed in partnership with organisations to meet specific job roles, safety requirements, and brand preferences.
)
experts in custom made protection for demanding environments
With decades of experience and trusted partnerships across critical industries, we specialise in custom-made arc flash garments tailored to the specific needs of large-scale operations.
From fabric choice to fit, function, and branding, we work closely with organisations to deliver protective clothing that meets the demands of their environments and teams—at scale, without compromise.
accreditations
our range of stocked arc flash trousers
Below is our stocked range of arc flash trousers, available in a variety of sizes, fits, and colourways—engineered to deliver reliable protection, wearer comfort, and immediate availability for operational needs.
While we offer a stocked range, our core expertise lies in custom-made garment solutions—developed in collaboration with leading organisations to meet specific performance, branding, and wearer requirements at scale.
Read more about our arc flash protection on our main arc flash clothing page, or discover our bespoke design service for completely custom-made arc flash PPE for your company..
Male hi-vis yellow / navy fr arc trouser
Features
- ELIM 8.5 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 60% Modacrylic
- 28% Cotton
- 10% Aramid
- 2% Antistatic
- 260gsm
Colours
- Hi-Vis Yellow
- EN 61482-2 2020 APC 1 ELIM 8.5cal/cm²
- BS EN 20471:2013+A1:2016 Class 1
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Female hi-vis yellow / navy fr arc trouser
Features
- ELIM 8.5 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 60% Modacrylic
- 28% Cotton
- 10% Aramid
- 2% Antistatic
- 260gsm
Colours
- Hi-Vis Yellow
- EN 61482-2 2020 APC 1 ELIM 8.5cal/cm²
- BS EN 20471:2013+A1:2016 Class 1
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Male hi-vis yellow fr arc trouser
Features
- ELIM 8.5 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 60% Modacrylic
- 28% Cotton
- 10% Aramid
- 2% Antistatic
- 260gsm
Colours
- Hi-Vis Yellow
- EN 61482-2 2020 APC 1 ELIM 8.5cal/cm²
- BS EN 20471:2013+A1:2016 Class 1
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Female hi-vis yellow fr arc trouser
Features
- ELIM 8.5 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 60% Modacrylic
- 28% Cotton
- 10% Aramid
- 2% Antistatic
- 260gsm
Colours
- Hi-Vis Yellow
- EN 61482-2 2020 APC 1 ELIM 8.5cal/cm²
- BS EN 20471:2013+A1:2016 Class 1
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Male hi-vis orange fr arc trouser
Features
- ELIM 6.4 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 38% Modacrylic
- 33% Polyester
- 15% Cellulose
- 13% Aramid
- 1% Antistatic
- 260gsm
Colours
- Hi-Vis Orange
- EN 61482-2 2020 APC 1 ELIM 6.4cal/cm²
- BS EN ISO 20471:2013+A1:2016 Class 2
- RIS-3279-TOM
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Female hi-vis orange fr arc trouser
Features
- ELIM 6.4 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 38% Modacrylic
- 33% Polyester
- 15% Cellulose
- 13% Aramid
- 1% Antistatic
- 260gsm
Colours
- Hi-Vis Orange
- EN 61482-2 2020 APC 1 ELIM 6.4cal/cm²
- BS EN ISO 20471:2013+A1:2016 Class 2
- RIS-3279-TOM
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Male navy fr arc trouser
Features
- ELIM 8.5 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 60% Modacrylic
- 28% Cotton
- 10% Aramid
- 2% Antistatic
- 260gsm
Colours
- Navy
- EN 61482-2 2020 APC 1 ELIM 8.5cal/cm²
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Female navy fr arc trouser
Features
- ELIM 8.5 cal/cm2
- Concealed waist button fastening
- Zip fly fastening
- 2 vertical side swing pockets
- 2 thigh pockets
- 2 back hip pockets
- Kneepad pockets
Fabric
- 60% Modacrylic
- 28% Cotton
- 10% Aramid
- 2% Antistatic
- 260gsm
Colours
- Navy
- EN 61482-2 2020 APC 1 ELIM 8.5cal/cm²
- BS EN ISO 11612:2015 A1, B1, C1, F1
- BS EN ISO 11611:2015 Class 1 A1
- BS EN 1149-5:2018
- BS EN 13758-2 2003, UPF 40+
Speak to our team today about our stocked arc flash trouser or to discuss your bespoke requirements.
our arc flash testing methods
open arc test (EN 61482-1-1)
This test determines the ATPV, EBT, and ELIM values for garments. It simulates an open Arc Flash to assess how much thermal energy the garment can withstand before the wearer is at risk.
box test (EN 61482-1-2)
In this test, garments are exposed to an Arc within a confined box to simulate a real-world scenario. The test measures the Arc Protection Class (APC) and assesses the garment's ability to protect against a defined level of Arc energy.
speak with us
end user
Discover how our Arc Flash range can protect and enhance comfort for your team. Get in touch to learn how to order from one of our trusted distribution partners.
distributor
Join our distributor network and offer your customers industry-leading Arc Flash protection. Access exclusive support, training, and marketing assets
why choose alsico as your arc flash trouser supplier?
At alsico, we supply more than arc flash trousers. From coveralls to jackets, and other environments, we're your dedicated partner in ensuring the safety, comfort, and quality of your workforce and products
Here's why you should choose alsico as your next arc flash trousers supplier.
decades of trusted expertise
With close to a century of experience in protective clothing, alsico brings together deep industry knowledge and a commitment to ongoing innovation. Our dedicated arc flash specialists help ensure every garment meets high safety expectations—without compromising on comfort or long-term performance.
end-to-end manufacturing control
By owning and managing our production facilities, we maintain full visibility and control over every stage of the manufacturing process. This allows us to deliver reliable quality, flexible lead times, and tailored design options—whether from our stocked ranges or as part of a fully custom-made solution.
Module D accredited facilities
Several of our manufacturing sites hold Module D accreditation under the EU PPE Regulation, providing independent verification that our arc flash garments are produced to consistently high standards. It’s reassurance that your workforce is protected by rigorously tested, reliably made PPE.
unmatched production flexibility
Our global manufacturing footprint gives us the agility to deliver custom-made arc flash garments at scale. Whether it’s adapting garment fit, fabric performance, or branded design details, we work closely with some of the UK’s largest employers to create PPE that’s built for the realities of the job.
sustainable & ethical practices
Sustainability and ethics are central to how we work. We prioritise responsible sourcing, efficient processes, and fair labour conditions across all our facilities—so you can partner with us knowing your PPE is made with both people and planet in mind.
)
speak to an expert
We understand that every workplace has unique safety needs. Our team of experts is here to help you find the perfect flame retardant workwear and welding PPE tailored to your specific requirements.
Whether you need advice on selecting the right flame retardant garments, conducting risk assessments, or understanding compliance standards, our knowledgeable professionals are ready to assist you.
Don't hesitate to reach out. Let us help you ensure your team is safe, comfortable, and well-protected.
frequently asked questions
It’s generally advisable to wear non-melting, natural fibre base layers—such as cotton—under arc flash trousers. In some cases, arc-rated base layers may be used to provide additional protection. Always refer to your internal safety protocols and the results of a formal risk assessment before selecting underlayers.
The appropriate arc rating for trousers depends entirely on the level of incident energy present in the working environment, which should be determined through a professional arc flash risk assessment. Ratings are typically expressed in cal/cm². Always select garments that meet or exceed the calculated energy exposure.
Arc flash trousers may be required in sectors where there is a risk of electrical arc exposure. These include utilities, power generation, renewable energy, industrial maintenance, rail, and construction, among others. Requirements vary depending on the specific tasks and work environments involved.
A risk assessment is the best way to determine whether arc-rated trousers are required. If employees are working on or near live electrical equipment, arc flash PPE—including trousers—may be necessary depending on the energy levels involved. Always consult safety guidelines and a qualified professional.
Arc flash trousers are typically tested to EN 61482-1-1 (Open Arc) and/or EN 61482-1-2 (Box Test), and may also meet other standards depending on secondary hazards, such as EN ISO 11612 (heat and flame), EN 1149 (anti-static), or EN ISO 20471 (hi-vis), where applicable.
All arc flash trousers are flame resistant, but not all flame-resistant trousers are arc-rated. Arc-rated garments undergo additional testing specifically for electrical arc protection and are assigned an arc rating (e.g. ATPV, ELIM). Always check certification to confirm suitability for arc flash risks.
An arc flash risk assessment typically involves identifying electrical hazards, calculating potential incident energy levels, and establishing safe working distances. These assessments should be carried out by a qualified individual and follow relevant safety standards and industry regulations.
Key standards include:
- EN 61482-1-1 – Open Arc Test
- EN 61482-1-2 – Box Arc Test
- IEC 61482-2 – General arc flash garment requirements
Additional standards may apply based on specific workplace hazards or compliance requirements.
Replacement cycles can vary depending on garment condition, frequency of use, and workplace environment. Regular inspections are essential. Trousers showing signs of damage, wear, or contamination should be withdrawn from service. Always follow manufacturer guidelines and internal safety policies.
Layering can enhance total protection when done correctly, but all layers—including base garments—should be made from non-melting or arc-rated materials. Always confirm compatibility and overall system performance, and consult with a qualified specialist to determine appropriate configurations.
Yes. Arc flash trousers can often be custom-made to include specific features—such as tool pockets, kneepad compartments, or design adjustments for comfort and branding. Any customisation should maintain compliance with applicable safety standards.
learn about our different solutions for wearer protection
electricity and arc flash
Our clothing, tailored to specific risk levels, offers significant protection, enhancing safety in industries where Arc Flash incidents are prevalent, minimising the risk of serious burns and injuries.
heat, flame, and welding
Burning hot embers, sparks and fire should never touch the skin of a human, our high-performance, FR and Welding protection garments are essential for workers in these environments.
visibility
Stay seen and secure with our high-visibility solutions, designed to keep workers visible and protected in environments such as railways, roads, docks, airports, and construction.
anti-static / ESD
Industries where electrostatic discharge poses a threat require anti-static/ESD garments. These specialized garments prevent static electricity buildup during sensitive operations, providing a crucial line of defense for worker safety.
molten metals
Protective solutions to ensure your team's safety from molten metal hazards, ensuring maximum-level protection against various metals, including zinc, nickel, and lead, ensuring your team's safety.
chemical
Chemical-resistant attire is necessary for protecting workers from hazardous substances in various industries. Alsico's reliable protective clothing creates a secure barrier against potentially harmful chemicals, prioritizing workplace safety.
rain and cold
Rain and cold weather workwear is pivotal in ensuring safety and comfort in challenging conditions, ensuring workers across diverse industries can perform their tasks safely and efficiently.
