FRAENKISCHE ROHRWERKE GEBR. KIRCHNER GMBH & CO. KG Kunststoff-Steckmuffe schwarz SMSKu-E-UV 40 (22551040)

Electricians and installers working with FRÄNKISCHE FFKu electrical conduit systems use this black PVC-U push-fit coupling to join 40 mm conduits in indoor and outdoor installations. The UV-resistant material withstands sunlight exposure, making it suitable for exposed runs on building facades or in industrial environments.

Key specifications

• Product type: Coupling
• Connection type: Push-fit
• Material: PVC-U (unplasticized polyvinyl chloride)
• Colour: Black
• Nominal diameter: 40 mm
• UV resistance: Yes
• Compatible conduit series: FRÄNKISCHE FFKu series
• Temperature range: -5°C to +60°C
• Halogen-free: No
• Standard compliance: DIN EN 61386-22
• Ingress protection: IP40 (when properly installed)
• Impact strength classification: Medium

Why choose it

The push-fit design allows quick, tool-free assembly, reducing installation time. UV resistance ensures long-term durability in outdoor applications, while the PVC-U material provides reliable mechanical protection for cables.

Ideal use cases

• Joining FFKu conduits in electrical installations
• Outdoor conduit runs exposed to sunlight
• Indoor industrial or commercial wiring systems

Good to know

This coupling is designed for use with FRÄNKISCHE FFKu series conduits. It is not halogen-free, so it may not be suitable for environments with strict fire safety requirements regarding smoke toxicity. The IP40 rating indicates protection against solid objects larger than 1 mm, but it is not waterproof.