The Courbi Coupling D50 Heavy Duty is a specialist fitting for joining straight and flexible conduit runs at a nominal diameter of 50 mm (Φ50 mm). It accepts both spiral and rigid variants of the COMBO, DOMO, and FORTE conduit systems and carries an IP54 water-tightness rating.

Manufactured in grey (RAL 7035) thermoplastic and certified to EN 61386-1/2004 and EN 61386-22/2004, it is suited to professional electrical installation work where a secure, moisture-resistant conduit joint is required at larger conduit sizes.

Key Features

• Connects straight and flexible conduits at Φ50 mm nominal diameter
• Heavy duty construction for demanding installation conditions
• IP54 water-tightness rating — protected against dust and water splashing
• Compatible with Spiral COMBO, DOMO, FORTE and Rigid COMBO, DOMO, FORTE conduit systems
• Grey colour, RAL 7035

Product Benefits

• IP54 rating keeps moisture out of the conduit joint, protecting internal wiring
• Heavy duty grade withstands higher mechanical stress than standard-duty equivalents
• 50 mm diameter suits larger cable runs carrying multiple circuits or heavier conductors
• EN 61386-1/2004 and EN 61386-22/2004 compliance supports installation sign-off and inspection
• Pack of 5 reduces the number of individual purchases needed for multi-run installations

Technical Specifications

• Type: Coupling (straight connector)
• Conduit Diameter: D50 mm (Φ50 mm)
• Duty Rating: Heavy Duty
• Water Tightness: IP54
• Compatible Systems: Spiral COMBO, DOMO, FORTE; Rigid COMBO, DOMO, FORTE
• Colour: Grey, RAL 7035
• Standards: EN 61386-1/2004, EN 61386-22/2004
• Pack Quantity: 5 pieces

Why You'll Love It

• Ready to use straight from the pack — no cutting or preparation required
• RAL 7035 grey blends with standard conduit on surface-mounted installations
• Pack of 5 keeps spare couplings on hand for repairs or extensions without reordering
• Package includes 1× Courbi Coupling D50 Heavy Duty, pack of 5 pieces