Portwest Arc Flash Visor Class 1

Trusted arc flash face protection for lower-risk live electrical work — with maximum optical clarity as standard. The Portwest PS90 Arc Flash Visor Class 1 is engineered to protect the face and eyes against the hazards of a 4kA electric arc flash, while delivering the highest possible light transmittance and superior colour recognition for precision electrical tasks where visual accuracy is essential.

Classified as Arc Protection Class 1 and VLT Class 0 in accordance with GS-ET-29 and E DIN 58118, the PS90 meets the requirements of EN 166 and EN 170, confirming both its mechanical protection performance and its optical quality. The VLT Class 0 designation indicates maximum light transmittance — meaning the visor introduces minimal visual interference, making it particularly well suited to detailed inspection work, metering, panel assessments, and other live working tasks where accurate colour recognition and unobstructed visibility directly affect safe working outcomes.

The polycarbonate face shield offers superior front and side protection, and the universal slot adapter bracket provides broad helmet compatibility, fitting slotted hard hats including Portwest Endurance (PS53) and Height Endurance (PS54). A stand-off position allows the visor to be held away from the face for intermittent use — enabling workers to raise the shield quickly between tasks without removing it from the helmet, maintaining protection readiness throughout the working period.

For use with non-vented, Category III helmets only, in line with arc flash PPE system requirements.

Key Features:

• Arc Protection Class 1 — certified to GS ET 29 Class 1 8-1-0
• VLT Class 0 for maximum light transmittance and superior colour recognition
• Protection against 4kA electric arc flash
• Superior front and side face coverage
• Stand-off position for convenient intermittent use without full removal
• Universal slot adapter for broad slotted helmet compatibility
• Compatible with Portwest Endurance (PS53) and Height Endurance (PS54) helmets
• For use with non-vented, Category III helmets only
• CE certified to CE-CAT III standard
• Compliant with GS ET 29 Class 1 8-1-0 | EN 166 1 B 8 3 | EN 170 2C-1.2

Materials: Polycarbonate, Nylon Product Code: PS90

What arc flash hazards does the Portwest PS90 visor protect against? The PS90 is designed to protect the face and eyes against the thermal and mechanical hazards generated by a 4kA electric arc flash. This includes radiant heat, UV and infrared radiation, pressure effects, and particulate hazards associated with arc flash incidents during live electrical work or proximity to energised equipment.

What does VLT Class 0 mean on the PS90 arc flash visor? VLT stands for Visible Light Transmittance. A VLT Class 0 designation indicates the highest level of light transmittance available, meaning the visor allows the maximum amount of visible light through to the wearer's eyes with minimal tinting or visual obstruction. This is particularly important for electrical work requiring precise colour recognition — such as identifying cable colours, reading instrument displays, or assessing panel conditions — where visual distortion or reduced light could compromise safe working.

What is the difference between the PS90 Class 1 and PS93 Class 2 arc flash visors? Both the PS90 and PS93 are helmet-mounted polycarbonate arc flash visors compatible with Portwest Endurance helmets. The PS90 is a Class 1 product offering protection against 4kA arc flash events with maximum light transmittance, suited to lower arc flash risk tasks and environments where optical clarity is a priority. The PS93 is a Class 2 product with a higher arc flash protection rating of ATPV 14 cal/cm², designed for higher incident energy exposures and NFPA 70E PPE Category 2 tasks. Selection between the two should be guided by your site's arc flash risk assessment.

Which helmets is the PS90 compatible with? The PS90 features a universal slot adapter and is compatible with Portwest Endurance (PS53) and Height Endurance (PS54) helmets. It must be used with non-vented, Category III helmets to maintain the integrity of the arc flash protection system.

What is the stand-off position on the PS90 visor? The stand-off position allows the visor to be held away from the face in a raised position when not actively required, without being removed from the helmet. This is useful for workers who need to alternate between tasks that require arc flash face protection and those that do not, keeping the visor immediately accessible throughout the working period.

What standards does the PS90 arc flash visor meet? The PS90 is certified to GS ET 29 Class 1 8-1-0, EN 166 1 B 8 3, and EN 170 2C-1.2. These standards cover arc flash protection classification, mechanical eye and face protection performance, and ultraviolet filter requirements respectively, collectively confirming the PS90 as a compliant Class 1 arc flash face protection product for professional electrical applications.