Break Through Plugs - BLA546

Liquid Tight Break Through Plugs - 38.1mm Mounting Hole Diameter - 9.5mm-26.9mm Cable Diameter Range - 49mm Head Diameter - Nylon & TPE | Vital Parts - BLA546

Our Liquid Tight Break Through Plugs provide a versatile and reliable sealing solution for electrical panels and enclosures, combining fluid protection with flexible usability. These plugs offer IP67/IP68-rated liquid tight sealing and can be used either as a closed plug to prevent ingress or perforated to function as a liquid tight bushing for cable pass-through. Suitable for a range of panel thicknesses and hole diameters, they are ideal for industrial, automotive, and outdoor applications.

What are Liquid Tight Break Through Plugs?

Liquid Tight Break Through Plugs are co-moulded sealing components made from durable Nylon 6/6 and flexible TPE rubber. The "break through" design allows the plug to remain sealed until a cable is pushed through, forming a liquid tight bushing. Alternatively, it can be used as a closed plug to prevent moisture, dirt, or dust ingress. With locking fingers that expand to accommodate variable panel thicknesses and a flammability rating of HB, these plugs are engineered to withstand harsh environments while offering long-term sealing and safety.

Key Features:

• Manufactured from co-moulded Nylon 6/6 and TPE rubber
• Dual-function as a liquid tight closure or bushing
• Certified to IP67 and IP68 for dust and water protection
• Break-through membrane allows easy cable insertion
• HB flammability rating for safety assurance
• Temperature resistance from -40°C to +100°C
• Locking fingers adjust for varying panel thicknesses (minimum 0.5mm)

Key Applications and Industries

Liquid Tight Break Through Plugs are widely used across the UK in the electrical, telecommunications, automotive, and industrial machinery sectors. They are especially effective in protecting electrical cabinets, junction boxes, or enclosures from water, oil, and dust. Their flexibility allows use in both sealed and cable-through applications, making them ideal for installers who require adaptability and speed during installation.

Technical Specifications

• Mounting Hole Diameter : 38.1mm
• Cable Diameter Range : 9.5mm-26.9mm
• Head Diameter : 49mm
• Overall Height : 17mm
• Panel Thickness : 1.6mm-6.4mm
• Thickness : 1.6mm/ 2mm/ 2.4mm/ 3.2mm/ 4mm/ 5.1mm/ 6.4mm
• Material: Co-moulded Nylon 6/6 and TPE Rubber
• Temperature Range: -40°C to +100°C
• IP Rating: IP67/IP68 certified
• Flammability Rating: HB
• Certifications: UL 635, UL File E15331 recognised under the Component Program

Our Liquid Tight Break Through Plugs are ideal for:

• Creating sealed entries for cables in control panels or junction boxes
• Providing liquid tight sealing for unused panel holes
• Outdoor or industrial enclosures requiring high ingress protection
• Situations requiring adjustable mounting across various panel thicknesses

Benefits:

• Dual functionality reduces the need for separate components
• Ensures long-term IP67/IP68 protection even after perforation
• Quick and simple installation without the need for tools
• Offers compliance with UL safety and component standards
• Resistant to temperature extremes, water, dust, and chemicals

Why Buy from Vital Parts?

As a trusted UK supplier of high-quality fasteners and industrial components, Vital Parts offers a customer-first experience with benefits that include:

• Same-Day Dispatch: Fast and reliable shipping to keep your projects on track.
• Competitive Trade Pricing: Enjoy bulk discounts on larger orders to save more.
• Expert Technical Support: Our knowledgeable team is here to help with product selection and application advice.

Click here to view our full Guide to Plugs & Stoppers

Liquid Tight Break Through Plugs are a reliable and efficient solution for protecting your electrical installations against environmental hazards. If you need assistance selecting the right size or would like to discuss custom options, contact our expert team at 01233 713581.