RDD Flex Protect Strain Relief Bushings

Our RDD Flex Protect Strain Relief Bushings, sometimes known as Lockit strain relief bushings or nylon cable protectors, are designed to provide effective protection and secure strain relief for both round and flat cables. These bushings are manufactured from UL94 V-2 rated Nylon 6/6, offering reliable performance in temperatures ranging from -18°C to 105°C. They are widely used in UK industries such as electrical manufacturing, appliance production, industrial control panels, LED signage, office furniture, and telecommunications. The main benefit is their unique integral nylon spring, which ensures a controlled cable bend radius, preventing kinking or damage at the panel entry. Their snap-in "Lockit" design ensures a secure, tool-free fit, making them a popular choice for installers and OEMs alike. Options are available for both round and flat cables, with a variety of sizes and colour choices on request.

Available materials and style options

• UL94 V-2 rated Nylon 6/6 (standard in black, with white and custom colours available on request)
• RDD Flex Protect F for flat cables
• RDD Flex Protect R for round cables
• Suitable for typical panel thicknesses from 0.8 mm to 1.6 mm (double-D cut-outs)
• Range of sizes to fit common cable diameters and profiles

Key features and benefits

• Integral nylon spring protects cables with a "lazy bend" for longer cable life
• Snap-in "Lockit" design prevents cable rotation and pull-out
• Quick, tool-free installation into double-D panel holes
• Pre-assembly possible for faster production or installation
• Tested to CSA 50,000-cycle and UL 859 cord flex standards
• Certified to UL Component Programme (File E15331) and CSA (File 8919)
• Resistant to abrasion, impact, chemicals, and temperature extremes

Common UK Use Cases

• Protecting mains cable entry on domestic appliances such as kettles, vacuum cleaners, and grooming devices
• Ensuring secure cable strain relief in control panels and industrial enclosures
• Providing bend protection for LED ribbon and flat power cables in signage
• Neat cable routing through office furniture panels and desks
• Maintaining cable integrity for IT, telecoms, and server cabinet installations

Related Vital Parts Products

• RDD Straight-Thru Strain Relief Bushings – for direct cable entry
• RDD Right-Angle Strain Relief Bushings – for 90° cable routing
• Bell-Mouth Strain Relief Bushings – for heavy or multi-core cables
• Liquid-Tight Bushings – for environments requiring sealing

Call Vital Parts

For quick quotes, same-day dispatch, custom sizes, or bulk discounts, call our sales line on 01233 713 581. Businesses can register for a Vital Parts Business Account to benefit from priority shipping, trade pricing, free product samples, credit accounts, and a dedicated account manager.

Further Reading

For more information about choosing the right strain relief solution for your project, read our Guide To Cable Management and Strain Relief.