Why do most X-10 receivers have 2 wires while ACT receivers have 3 wires?
Most X-10 receivers fall into the category of 2-wire dimmers. That means that they are limited to 500 watts of incandescent load only. They do not require a connection to a neutral wire since they get their operating power “through” the load. Most of ACTs receivers require a neutral because they are relay receivers or special dimmer receivers.
