Portwest FR452 PW3 Modaflame Work HVO Class 1 FR Holster Trousers – Product Description

The Portwest FR452 PW3 Modaflame Work HVO Class 1 FR Holster Trousers are engineered for demanding environments where heat, flame, arc flash and visibility hazards are present. Using inherently flame resistant Modaflame Work fabric, these trousers retain their protective properties for the lifetime of the garment, making them a dependable long term PPE solution.

Designed for modern trades and industrial workers, the FR452 features multi-functional removable holster pockets, allowing quick configuration depending on the task. Reinforced panels are positioned in key abrasion areas to increase durability during kneeling, climbing or handling tools. The articulated design combined with stretch panelling offers excellent mobility, making the trousers suitable for active, high movement roles.

Top loading knee pad pockets offer fast access and allow the user to place knee pads without removing the trousers. Multiple storage pockets are positioned for convenience, including an easy access thigh pocket suitable for phones, keys and essential tools. Reflective piping and segmented FR tape enhance visibility while maintaining flexibility.

The FR452 is fully certified to multi-norm standards including heat, flame, arc flash and antistatic protection, with EN ISO 20471 Class 1 visibility for low-light environments. Designed for utilities, energy, construction, fabrication and industrial maintenance, these trousers offer an ideal balance of mobility, protection and long-term durability.

Key Features

• Inherent flame resistant fabric that maintains protection after repeated washing
• Reinforced panels in high abrasion zones for maximum durability
• Removable holster pockets for versatile tool storage
• Easy access cargo pockets and dual back patch pockets
• Rule pocket and multi-purpose thigh pocket
• Extendable leg length 31 to 33 inches
• Stretch panelling improves comfort and flexibility
• Triple stitched seams for extended garment life
• Top loading knee pad pockets for fast and convenient access
• Segmented reflective tape for improved visibility
• Non-magnetic components suitable for certain ATEX areas
• CE certified and CE CAT III

Fabric Composition

Modaflame Work 60 percent modacrylic, 39 percent cotton, 1 percent carbon fibre 280g
Contrast Modaflame Work HVO 61 percent modacrylic, 18 percent viscose, 15 percent polyester, 5 percent aramid, 1 percent carbon fibre
Contrast Modaflame Work Stretch 60 percent modacrylic, 35 percent cotton, 4 percent elastane, 1 percent carbon fibre 280g

Certifications

EN ISO 11612 A1 A2 B1 C1 F1
EN 1149 5
IEC 61482 2 and IEC 61482 1 1 arc protection ELIM 6.4 cal per square centimetre and EBT 6.8 cal per square centimetre
IEC 61482 1 2 APC 1
EN ISO 20471 Class 1