The Courbi round junction box (Φ100×50 mm) installs into plasterboard panels from 7 mm to 35 mm thick. Its circular profile suits ceiling and wall voids where round cut-outs are preferred, and the practical lid allows straightforward cable inspection after installation.

Produced from a special hard polymer with halogen-free construction, the box is non-corrosive, self-extinguishing, and rated to IEC 60670-1/2002. It meets IP 3X ingress protection and passes the 850 °C glow-wire test.

Key Features

• Round format: Φ100×50 mm for cable connection in plasterboard voids
• Halogen-free (HF) polymer material — no toxic gases on combustion
• Plasterboard recess suits board thickness 7 mm to 35 mm
• Side partitions with knockouts for conduit entry and routing
• Compatible with Spiral DIN COMBO, DOMO, FORTE, and SiBi conduits

Product Benefits

• Halogen-free construction reduces toxic emission risk in enclosed installations
• Non-corrosive material maintains integrity in damp or humid conditions
• Self-extinguishing polymer stops flame propagation to surrounding materials
• IP 3X rating guards internal connections against solid particle ingress
• Practical lid enables cable inspection without removing the box

Technical Specifications

• Dimensions: Φ100×50 mm
• Protection Rating: IP 3X
• Material: Special hard polymer, Halogen Free (HF)
• Plasterboard Thickness Range: 7 mm to 35 mm
• Standard: IEC 60670-1/2002
• Glow Wire Test: 850 °C
• Min. Temperature: -15 °C
• Max. Temperature: +60 °C
• Colour: Yellow

Why You'll Love It

• Round cut-out matches standard plasterboard hole-saw sizes for fast installation
• HF rating gives confidence in installations where low-smoke materials are specified
• Wide board-thickness range (7–35 mm) accommodates varied plasterboard builds
• Package includes 1× Courbi Internal Plasterboard Round Junction Box Φ100×50 mm Yellow