The STEFFEN TT Installation Cable is a 5-core copper wiring solution with 1.5 mm² conductors per core, designed for fixed electrical installations in buildings. The 25-metre length in white PVC jacket provides a clean, discreet finish for routing through conduits, trunking, or cable trays.
5 × 1.5 mm² copper conductors rated for standard installation currents
PVC insulation and outer sheath offer reliable mechanical protection and electrical isolation
25 m pre-cut length saves time on site and reduces waste from splicing
White colour blends with common conduit and trunking systems for a neat appearance
What sets the STEFFEN TT Cable apart
As a dedicated installation cable rather than a flexible or portable cord, the TT type is built for permanent wiring runs in walls, floors, and ceilings. The 1.5 mm² cross-section balances current-carrying capacity with ease of routing through tight conduits, making it suitable for standard lighting and power circuits in residential and commercial buildings.
Ideal for
Electricians and installers working on new-build or renovation projects that require certified fixed wiring. The 5-core configuration supports multi-circuit layouts — such as radial lighting circuits, socket-outlet groups, or combined power and control lines — without the need for separate cables.
Application of STEFFEN TT Installation Cable
Route the cable through conduit, trunking, or directly in plasterboard channels as part of the building's fixed wiring installation. Connect each core to its respective circuit terminal at the distribution board and at termination points. The white PVC jacket is compatible with standard installation accessories and does not require additional sleeving in dry indoor environments.
STEFFEN is a Swiss manufacturer of electrical installation materials and cable systems for residential and commercial building wiring. The brand focuses on standardised, certified products for electricians and building contractors, covering cables, connectors, and installation accessories.
It is used for fixed electrical installation wiring in buildings — such as lighting circuits, socket-outlet groups, and combined power and control lines — routed through conduit, trunking, or plasterboard channels.
The cable has 5 cores, each with a 1.5 mm² copper cross-section, suitable for standard installation currents in residential and commercial circuits.
The cable comes in a 25-metre length with a white PVC jacket, designed to blend with common conduit and trunking systems.
The insulation and outer sheath are made of PVC, providing mechanical protection and electrical isolation for indoor fixed installations.
STEFFEN provides a 24-month manufacturer warranty on this product, covering defects in materials and workmanship under normal installation conditions.
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