20va, Surface, IP66, exterior transformer, Black - 12 v ac
The T9502 Elipta surface-mount 12v weatherproof wire-wound (magnetic) transformers is resin-potted into black polycarbonate boxes, for mounting onto walls or posts, hidden behind planting and landscape features, under decking or in outbuildings. Each transformer has a self-resetting thermal cut-off to protect against overload, 1m mains input cable and 60cm 12v output cable for connection using separate weatherproof junction boxes (cable & connections carrying different voltages must be segregated). Both cables enter the case at the same end, allowing neat connection into junction boxes below when mounted on a post. The T9502 can be mounted to a 3" fence post or T9599 Stainless steel spikes are optional.
Low voltage transformer loading example
The majority of exterior waterproof low voltage transformers are wire wound ( magnetic) torodial which are sealed in hard resin to prevent water ingress. The transformer must be loaded to 70% of it maximum capacity for it to function correctly. If you are going to put LED lamps on the transformer we recommend loading it to 80% of its maximum load capacity and if the fitting has a built in LED chip it may require a DC LED driver as this will tolerate low loadings. The fittings will confirm if this is the case in their descriptions.
Transformer location and low voltage cabling
1. Try and keep cable runs from transformers to garden light
fittings as short as possible to ensure optimum performance, no
more than two metres to the first lamp.
2. Locate a transformer centrally amongst a group of garden
lights it is to power; e.g. a radius of 8 metres for 5w LED lamps
3. If you decide to run 2 sets of garden lights operated
by separate switches, you must provide 2 separate transformers & circuits.
4. Try not to put more than 12 lights on any one transformer
otherwise voltage drop can reduce lamp and transformer performance.
5. Try to avoid putting cable runs straight through the
middle of the garden and try to run them along the fence line first, this will
the risk of putting a spade or fork through them when gardening.
6. Where possible always try to keep the transformer above
ground mounted on a fence post or spike, if you do have to bury them make sure you
use the burial kits and fill with resin to reduce water ingress.
Wire wound (magnetic) transformer resin-potted into a black polycarbonate box, with a 1 m mains input cable and 60cm 12v low voltage cable