Electrical installation pipes, screw connection
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Electrical installation pipes play an important role as the foundation of electrical infrastructure. The OBO electrical installation pipes with screw connection feature threaded ends that meet the requirements of DIN EN 60423 for the mechanical protection of cables. One connection sleeve is already attached and screwed onto each black steel pipe with thread, for especially easy and efficient screw connections. The screw-on OBO electrical installation pipes are available in electrogalvinised, powder-coated, hot-dip galvanised and aluminium pipe versions. The portfolio, which is also compatible with the entire OBO range of accessories, is complemented by matching bends and additional sleeves.
IEC classification of the electrical installation pipes
As with all pipe systems from OBO, the electrical installation pipes with screw connection are machined and tested according to IEC EN 61386 “Conduit systems for cable management” and IEC EN 60423 “Conduit systems for cable management – Outside diameters of conduits for electrical installations and threads for conduits and fittings”.

Efficiency thanks to precision armoured steel pipes
When producing steel pipes, normally the machining process creates a bulge along the welding seam. Not with OBO screw connection pipes. Here, the annoying bulge is removed directly after welding. The result is a smooth pipe interior, enabling especially easy insertion of cables, and saving installers time while making their work easier for them.
Black steel pipe with thread
Screw-on electrical pipes from OBO stand for safety and reliability. They provide reliable protection against very heavy mechanical loads during cable routing and are therefore particularly suited to use under harsh and tough conditions in industrial environments. The electrical installation pipes with screw connection also ensure the maintenance of electrical function to E30/E90. They are thus ideal for the connection of safety-relevant equipment, such as fire alarm systems.






