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

• Liquid Tight Bushings
• Blanking Plugs
• Cable Glands

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.

For additional guidance on choosing and installing strain relief bushings, visit our Guide To Strain Relief.