The Courbi square junction box (155×105×45mm) is intended for concealed installation in plasterboard walls and ceilings. Its hard polymer construction is non-corrosive, resistant to impact and pressure, and self-extinguishing, meeting IEC 60670-1/2002 standard requirements.

The box carries an IP 3X protection rating and is rated for operating temperatures from -15°C to +60°C. It is suitable for both residential and industrial electrical installations, indoors and outdoors.

Key Features

• Recessed fit for plasterboard 7mm to 35mm thick
• Hard polymer construction — non-corrosive, impact and pressure resistant
• Flame retardant and self-extinguishing material
• Practical lid for easy installation and inspection
• Special side partition design for easy cutting and conduit installation
• Compatible with Spiral DIN COMBO-DOMO, Spiral COMBO-DOMO-FORTE, and SiBi conduits

Product Benefits

• Plasterboard recess depth range (7–35mm) accommodates the most common wall-lining thicknesses
• Non-corrosive material ensures long service life even in humid indoor environments
• Self-extinguishing polymer limits fire spread if the box is exposed to a fault-induced flame
• Hinged or removable lid simplifies wiring inspection and future cable additions
• Side partitions pre-scored for clean, tool-assisted conduit entry without cracking the box

Technical Specifications

• Dimensions: 155×105×45mm
• Colour: Yellow
• Material: Special hard polymer
• IP Rating: IP 3X
• Implementation Standard: IEC 60670-1/2002
• Glow Wire Test: 850°C
• Minimum Operating Temperature: -15°C
• Maximum Operating Temperature: +60°C
• Compatible Conduits: Spiral DIN COMBO-DOMO, Spiral COMBO-DOMO-FORTE, SiBi

Why You'll Love It

• Yellow colour provides quick visual identification during installation and inspection
• IP 3X rating confirms protection against solid objects and compliance with IEC 60670-1/2002
• Wide temperature range (-15°C to +60°C) covers typical indoor and sheltered outdoor conditions
• Package includes 1× Courbi Internal Plasterboard Square Junction Box Yellow 155×105×45mm