The Unifrog format replaces the erstwhile Insulfrog and Electrofrog format, a combination of both. As supplied the turnout is set up to work like an Insulfrog turnout, but with the connected wire to the independent frog tip the turnout can be operated like an Electrofrog, the wire allowing the switching of the polarity - described as "powering the frog".
The Peco SLU7082 HO Gauge Code 70 Unifrog #8 Left Hand Turnout/Point is ideal for model train enthusiasts looking to add real-life functionality to their train layouts.