Insteon 2-Wire Dimmer or Switch Not As Easy As X10

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About a year ago I started swapping out some X10 dimmer and appliance modules with new Insteon modules. They’re much more reliable and more secure than X10 gear. However, the in-wall modules have one requirement that prevents me from using them. Specifically, they require a neutral wire.

Since our home has a mix of older wiring, or the neutral wire wasn’t brought down to the switch, I can’t install most Insteon modules. I am able to use plug-in modules, which work well so I still have a mixed environment of Insteon and X10.

There are some 2-wire Insteon modules available. However, the wiring requirements aren’t as simple as those for X10 devices. I’m probably not going to purchase any of these. I may just continue using plug-in modules until we can afford to have our electrical wiring upgraded throughout the house.

The issue is that the 2-wire modules actually use two components. One component is installed at the switch and the other is installed in the electrical box at the light fixture. According to the documentation it creates a neutral wire between the two devices using the existing two wires.

This just isn’t as simple as what I’d prefer. I’m not stating that the 2-wire Insteon modules are faulty or not good. The purpose of this post is just to help others learn that using these won’t be as simple as replacing a light fixture switch.

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