What the four conductors are for
On a multi-circuit rail the conductors are not all doing the same job. Three of them feed the three switchable circuits; the fourth completes the supply. Which group a luminaire joins is decided by the adapter that carries it, not by where it sits on the rail.
That is why a 4-wire rail and its adapters have to be specified together: the adapter is the part that picks up a particular circuit. On this site both sides are published, so an adapter can be matched to a rail by its circuit configuration rather than by appearance.
What "3-phase supply" does and does not mean
Three circuits describe how the rail is switched. Three-phase describes how a load is distributed across L1, L2 and L3 at the supply. The two often go together on large installations, but they are not the same thing, and a four-wire rail can be fed from the supply that is actually available.
The arrangement has to be settled with the electrical designer for the project. We publish the conductor arrangement of our rails, the adapters that match them and the driver boxes that go with them; we do not publish current ratings or circuit-protection figures, because those depend on the installation.
Published 4-wire ranges
| Model code | Circuit / wire count | Rail material | Conductive material | Inner strip |
|---|---|---|---|---|
| F0430 | 4 Wires 3 Circuits | High quality aluminum | Pure copper | PVC strip |
| F0440 | 4 Wires 3 Circuits | High quality aluminum | Pure copper | PVC strip |
| R0410 | 4 Wires 3 Circuits | High quality aluminum | Pure copper | PVC strip |
| R0420 | 4 Wires 3 Circuits | High quality aluminum | Pure copper | PVC strip |
| F0340 | 3 Wires Single Circuit | High quality aluminum | Pure copper | PVC strip |
| F0350 | 3 Wires Single Circuit | High quality aluminum | Pure copper | PVC strip |
| F0230 | 2 Wires Single Circuit | High quality aluminum | Pure copper | PVC strip |
| F0210 | 2 Wires Single Circuit | High quality aluminum | Pure copper | PVC strip |
| RE410 | 4 Wires 3 Circuits | High quality aluminum | Pure copper | PVC strip |
| RE310 | 3 Wires Single Circuit | High quality aluminum | Pure copper | PVC strip |
| RE210 | 2 Wires Single Circuit | High quality aluminum | Pure copper | PVC strip |
Model codes, rail material and conductor details as published per model; the 4-wire rows are the F0430 / F0440 / R0410 / R0420 / RE410 family.
Which adapters go with them
| Model code | Circuit / wire count | Housing material | Housing colour |
|---|---|---|---|
| GT402 | 4 Wires 3 Circuits | PC | White,Black |
| GT403 | 4 Wires 3 Circuits | PC | White,Black |
| GT406 | 4 Wires 3 Circuits | PC | White,Black |
| GT407 | 4 Wires 3 Circuits | PC | White,Black |
| DX405 | 4 Wires 3 Circuits | PC | White,Black |
| GT301 | 3 Wires Single Circuit | PC | White,Black |
| GT304 | 3 Wires Single Circuit | PC | White,Black |
| GT307 | 3 Wires Single Circuit | PC | White,Black |
| DX307 | 3 Wires Single Circuit | PC | White,Black |
| GT207 | 2 Wires Single Circuit | PC | White,Black |
| GT208 | 2 Wires Single Circuit | PC | White,Black |
| GT201 | 2 Wires Single Circuit | PC | White,Black |
| GT202 | 2 Wires Single Circuit | PC | White,Black |
| DX205 | 2 Wires Single Circuit | PC | White,Black |
An adapter or driver box is matched to the platform by circuit configuration; the exact item list is confirmed with the quotation.