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Intermatic PX600 Pool Light 600-Watt Safety Transformer, Beige
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- Designed to supply 12 volts to pool/spa lights, submersible fixtures and outdoor garden lights
- Grounded shield between the primary and secondary windings
- Built-in circuit protection
- 3R Beige metal enclosure with a total of 12 combination 1/2" inch - 3/4" inch knockouts: (2) right side, (2) left side, (2) back and (6) bottom
- 10” inches (25.4 cm) (H) x 10” inches (25.4 cm) (W) x 5 3/8” inches (13.65 cm) (D)
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These Safety Transformers by Intermatic are specifically designed to supply 12-14 VAC to pool/spa lights, submersible fixtures and outdoor garden lights. A grounded shield between the primary and secondary windings assures safe operation and the built-in circuit protection will disconnect power temporarily in case of overload. All comply with NEC Code 680.23 requirements for underwater luminaries, and come with a 1-year warranty.
Top customer reviews
Now come the wiring part: The box comes with the wiring diagram. The left side of the transformer is the input side. Disregard the blue and yellow wires. Wire the 120v wires from your junction box (black and white) to the black and white input on the transformer. The output has two identical black wires. Connect the white wire from your pool or spa light to one of the black wire on the output side. Connect the black wire from the pool light or spa light to the other black wire. I got confusedwith the output wires on the transformer because they were both black but found out that it doesn't matter. But either one can serve as neutral or hot.
My old transformers were twice the size/weight and all rusted. They were functional but badly damaged from rain/corrosion; I was not going to take chances in my pool and replaced them when I built a new wall around my pool. I am no electrician but the diagram on the inside lid is self-explanatory. I simply knocked out the holes on the side, made a few adjustments to the wiring conduits with some parts from the local hardware store. The box comes with stainless brackets to allow mounting it on a wall. The wiring was a direct-connection using standard electrical parts. My old transformer (circa 1970s) was wired backwards but this transformer was much smaller in form factor and I simply reversed the wires inside the housing to make the connection work for me. Mine is made of stainless steel but painted gray; I have managed to scratch the housing and unlike the housing on my pool timer, there is no rust! The front cover comes off completely and is held on with a single screw seen in picture - this really helps with access and wiring. It isn't an exciting purchase but with a little planning and some electrical conduit, any do it yourself home owner could create an outdoor lighting oasis.
As far as transformers go, there is nothing wrong with this one, but there is an oddity. When you are preparing to wire this transformer, you will notice that it appears backwards or mislabeled, as you would expect the primary side (or input) to have two wires and the secondary (output to the load) to have 3 or more. On this transformer, the primary side has four wires and the secondary has only two.
This oddity should make you look twice at the wire diagram, which I did. When you look at the wire diagram it gives you a small chart that indicates which wires should be connected to produce the desired voltage outcome. This is not depicted well, AT ALL!
I connected the wrong wires and when I turned on the power, I heard a buzzing noise. I immediately shut off the power but it was to late, the transformer would no longer work. After much investigation with a multi meter, I found the Klixon thermal protector in this transformer was burnt. Bad news for me... Good news for you, I found a very useful wire diagram on "Inyopools.com" after I had attempted to connect this transformer. I just Googled Intermatic PX300 wire diagram.
After speaking with a representative from Intermatic, they told me I would be charged the retail price to replace the transformer.
With the Advent of modern LED lighting, I actually am only using 36 of the 100w with the landscape lighting in the front AND back yards!!!! I am using low voltage lights purchased from Home Depot, with 18 path lights, and 6 floodlights.
As other reviewers have mentioned, I also had the horrible buzzing sounds. The two things I did was to mount the transformer to the house with rubber washers, but, the biggest difference was made when I used a pair of pliers to pinch the metal surround for the transformer core a bit tighter, and that nearly eliminated the issues (which also means that Intermatic needs to have better quality control, or they need to adjust how they are actually making the product)
Now, the bad : It is not the hum.
This transformer resonates very loud ! It is "ringing". It can be heard from the corner of my backyard.
No idea if they all (this very model) sing so bad by design or it was the poor quality control in their Mexico plant. The old transformer that was replaced (120/120), from the 50"s, was built like a tank, and of course, epoxy encapsulated. Please, don't let anybody tell you that this is normal if your load is very small. Transformers are very (most) efficient devices, and if designed properly, they run cool and quiet at all times. This was used with 12 V pool bulb.
I bought it long time ago, and just installed it yesterday, so zero returns. Expensive mistake.
Go ahead, buy it if you need a bird chaser.
Perhaps I gave it a couple of stars to many. Angry.