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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
Wiring up these models should be 
carried out as follows:
1. Remove the cable gland and 
rubber washer from the cable 
inlet and retain. Fig. 2 shows the 
gland and washer removed from 
model 150D.
2. Remove the Terminal Box cover 
by unscrewing the four securing 
screws.
3. Remove the screws securing the 
cable clamp.
4. Thread the cable gland, followed 
by the rubber washer over the 
cable, then thread the cable 
through the cable inlet.
5. Carefully strip the outer insulation 
from the conductors for a 
distance of approx. 30mm taking 
care not to damage the 
conductor insulation.
6. Strip the conductor insulation, for a distance of approx. 8mm and twist the 
strands together, on each conductor.
7. Identify the terminals by observing 
the embossed symbols on the 
base of the junction box, and 
indicated in Fig.4.
These are L - Live, N - Neutral and 
earth.
Connect the conductors 
accordingly.
NOTE: The cable path for the 500SD 
is shown by the dotted line in 
Fig. 3.
8. Replace the cable clamp ensuring it firmly clamps the OUTER insulation, or 
sheathing, and NOT the conductors.
9. Push the rubber washer into the cable inlet and screw in the cable gland 
firmly. Do not overtighten as this could strip the plastic threads.
10. Before replacing the cover, ensure the terminal black is located snugly on 
the locating pegs, illustrated in Figs. 3 and 4.