Wiring 12V Transformer

Wiring of Single (DC-211) and Five Block (DC-231) 12v Transformers

 There are two options with hard-wiring motors: a single-blind transformer and a five blind transformer.

The single blind transformer is, as you would expect, used for one blind. It joins the 2 core motor cables and then plugs straight into a 13amp socket. It's self-contained. I deal with one blind where there is a 13-amp socket near the window.
The four blind transformer is for multiple blinds, and if you have more than five blinds, you must build up banks of transformers. Each of these 5 blind transformers requires a 13amp socket. So, two banks of four require two 13amp sockets, and so on and so forth.
The transformer takes the 240V power down to 12V, which is the rating of the motors. The motors act in the same way that the battery-powered ones do, except you don't have to charge them.
Each blind has to have its own two core cable (small like alarm cable) travelling to the transformer block. So if you have five blinds, then four cables are travelling independently to the transformer. The transformer block should be no further than 600mm from the power source (13amp socket). On one side of the transformer, you have the power input cable (240v), and on the other end, you have the 12v output terminals (4), which send power (12v) to the motors.
If you are chasing walls to hide the cables (2 core) then you chase from the top of the window ( where the headrail is located) down, or across to where you are locating the 5 blind transformer.
When attaching the cables, do one at a time and set the travel (on the handset) of the blind (No. 1 blind, zone 1 on the handset) before moving onto blind two.

The wiring of the 5 Block Transformer to the 13amp plug must be done by an electrician; the motors, which are only 12v, may be wired by a blinds fitter.

All cables for the five-block transformer are to be supplied by the retailer, fitter or electrician. We do not supply cabling. The single-blinded transformer is supplied with cables.

Dimensions DC-231 ( 5 Block) L120mm B50mm H31mm