Steffen T-Draht 2.5mm² – Blue Installation Cable, 50m Reel
The Steffen T-Draht is a single-core installation cable with a 2.5 mm² copper conductor and PVC insulation, supplied on a 50-metre reel in blue. It is designed for fixed wiring applications in building and electrical installations where a durable, colour-coded conductor is required.
2.5 mm² copper conductor provides reliable current-carrying capacity for standard installation circuits
PVC insulation offers durable, flexible protection against moisture and mechanical stress
Blue colour coding enables clear identification of this conductor in multi-core installations
50m reel length reduces on-site joining and installation time
What makes the Steffen T-Draht stand out
The T-Draht design uses a solid copper blank conductor with a uniform PVC sheath, ensuring consistent electrical performance and ease of routing through conduits and cable trays. The blue colour is applied directly to the insulation for long-lasting visibility, not a surface print that can wear off.
Ideal for...
Electricians and installation contractors working on residential, commercial, and industrial building projects where a dedicated blue single-core cable is needed for lighting circuits, socket outlets, or control wiring. The 50m reel format suits medium-scale installation runs without the need for intermediate connections.
Application of the Steffen T-Draht
Route the cable through conduit, cable tray, or direct-fixed channels as required by the installation design
Strip the PVC insulation at termination points using standard cable strippers
Connect the blue conductor to the designated circuit — the colour code matches standard UK/EU wiring conventions for switched or permanent live conductors
Secure the cable at intervals per local electrical regulations; the 50m reel allows continuous runs with minimal joints
Steffen is a Swiss manufacturer of electrical installation materials and cable systems, supplying components for building and industrial wiring applications.
It is a single-core installation cable used for fixed wiring in buildings, such as lighting circuits, socket outlets, and control wiring, where a blue-coloured conductor is specified.
2.5 mm² copper conductor cross-section, PVC insulation, blue colour coding, 50 metres per reel, single core (1 conductor).
The PVC insulation provides basic protection against moisture and mechanical damage, making it suitable for indoor installation and protected outdoor routing through conduit. Direct burial is not specified by the manufacturer.
In standard installation practice, the blue conductor typically identifies a switched or permanent live conductor. The colour is applied to the PVC insulation for permanent, wear-resistant identification.
On a 50-metre reel, ready for installation. The reel format minimises the need for intermediate joints in typical building wiring runs up to 50 metres.
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