A Passive Coupler is a device which has been designed and manufacturedfor the purpose of transferring PLC signals from one phase to another.Transfer PCL signal across different phase in a 3 phase power system.Home Plugs connected in different phase can now communicate.Fit for DIN Rail standard.Easy Installation.Internal fuse for protection.Broadband of coupling frequency.Low attenuation.Compatible with all brand of Home Plug devices.1 x Phase Coupler Check out our other items! On Jan-20-14 at 08:13:39 PST, seller added the following information:,RcmdId ViewItemDescV4,RlogId p4%60bo7%60jtb9%3Feog4d71f%2B0a7%3E-14a7146a13a-0x10f-->