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Strain Relief Bushings For Non Round Holes
Strain relief bushings for non round holes are snap-fit cable management components designed to protect and secure wires as they pass through square or rectangular panel cut-outs. These are sometimes called non-round panel bushings or snap-in cable bushings and are essential for stopping cables from being damaged by sharp panel edges. They are made from high-quality Nylon 6/6, offering durability, resistance to abrasion and chemicals, and compliance with UL94 V-2 flame ratings.
These bushings are widely used in the UK for electrical control panels, industrial equipment, HVAC units, commercial appliances, and white goods manufacturing. Their primary benefit is quick, tool-free installation, ensuring a secure hold on cables, preventing movement and reducing strain on connectors. Available in sizes to suit a wide range of cable diameters (5.6 mm to 10.6 mm) and panel thicknesses (0.8 mm to 4 mm), these bushings help maintain safe, neat cable entry points. Both black and white options are available, depending on application requirements.
Available Materials & Style Options
- Nylon 6/6 (UL94 V-2 flame rated)
- Standard colour: black (white available by request)
- Snap-fit for square and rectangular panel holes
- Panel thickness range: 0.8 mm – 4 mm
- Cable diameter range: 5.6 mm – 10.6 mm
Key Features & Benefits
- Fast, snap-fit installation with no tools needed
- Protects cable insulation from sharp or unfinished panel edges
- Secure retention minimises cable movement and strain
- Excellent resistance to oils, greases, and common chemicals
- UL recognised and CSA certified for safety and reliability
- Non-conductive, electrically insulating design
- Suitable for wide operating temperatures: -18°C to +105°C
Common UK Use Cases
- Electrical control panels and switchgear
- Industrial machinery and automation cabinets
- Commercial refrigeration and HVAC units
- White goods and domestic appliances
- Data cabinets and server enclosures
Related Vital Parts Products
For additional guidance on choosing and installing strain relief bushings, visit our Guide To Strain Relief.
