The Courbi twin switch box (Φ65×135×45 mm) is designed for recessed installation of a two-gang switch or socket configuration in plasterboard from 7 mm to 35 mm thick. Its elongated body provides two circular recesses at standard centre spacing, and the practical lid permits cable inspection after fitting.

Built from a halogen-free hard polymer, the box is non-corrosive, self-extinguishing, and tested to IP 3X under IEC 60670-1/2002. The glow-wire rating of 850 °C confirms it is suitable for residential and industrial electrical work.

Key Features

• Twin switch/socket format: Φ65×135×45 mm for two-gang plasterboard installation
• Halogen-free (HF) polymer — lower toxic gas output in fire conditions
• Plasterboard recess rated for board thickness 7 mm to 35 mm
• Pre-scored side partitions for conduit entry without additional drilling
• Compatible with Spiral DIN COMBO, DOMO, FORTE, and SiBi conduits

Product Benefits

• Two-gang capacity allows a paired switch and socket in a single box
• Halogen-free material reduces toxic risk in wall cavities of occupied buildings
• Non-corrosive polymer remains stable in humid or damp construction environments
• Self-extinguishing body prevents flame travel through the wiring network
• IP 3X protection shields cable connections from solid-particle ingress

Technical Specifications

• Dimensions: Φ65×135×45 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

• Two-gang configuration replaces two separate single boxes with one neat unit
• Pre-scored knockouts cut installation time without specialist tools
• Glow-wire tested at 850 °C meets standard fire-safety certification requirements
• Package includes 1× Courbi Internal Plasterboard Twin Switch Box Φ65×135×45 mm Yellow