Cable duct OBO Bettermann Minikanal MD4 4.5x9 mm white

Mini cable duct OBO Bettermann Minikanal MD4 with internal dimensions 4.5 x 9 mm in white is a compact surface-mounted channel designed for organizing and protecting small low-voltage cables and wires. Its slim profile allows installation in tight spaces where conventional trunking is impractical, providing an unobtrusive route for power, signal and communication wiring in residential and commercial interiors.

Advantages

The Minikanal MD4 offers a low-profile design that simplifies cable routing along walls, skirting boards and furniture edges while maintaining a clean appearance. Its white finish blends with most interiors and resists visible discoloration under normal indoor conditions. Rigid construction ensures secure fixation and protection against mechanical damage and accidental cable strain. The system is suitable for quick surface mounting and straightforward cable laying without the need for embedded installations.

Suitable for

• Routing small low-voltage cables for doorbells, thermostats and sensors
• Concealing audio, data and TV antenna leads along walls and skirting
• Organizing power leads for small appliances and chargers in offices and homes
• Retrofitting wiring where embedding in walls is not possible or desired

Key specifications

• Internal cross-section: 4.5 x 9 mm
• Color: white
• Profile type: mini surface-mounted duct
• Material: rigid PVC (white, smooth finish)
• Mounting method: surface-mounted with adhesive or screws (depending on mounting accessories)
• Intended cable type: small low-voltage signal and power conductors

How to use

Measure and mark the desired routing path, then cut the Minikanal MD4 to length using a fine-toothed saw or appropriate cutting tool. Prepare the installation surface to ensure it is clean, dry and free of dust or grease. Position the duct and secure it using appropriate mounting accessories: adhesive tape or mounting clips for light-duty applications, or screws and wall plugs for a more permanent installation. Lay cables into the channel before fitting the cover, ensuring cables are not excessively bent or stressed. Close the cover to conceal wiring and verify that the channel is firmly fixed.

Usage recommendations

For best results, avoid running high-current mains cables together with signal or data lines in the same small duct to prevent interference and overheating. Use separate channels for power and communication wiring when possible. Select mounting hardware appropriate for the substrate—plasterboard, concrete or wood—to ensure secure fixation. When installing in areas with potential mechanical impact, consider ducts with larger cross-sections or additional protection.