Spring Rail Frog Heating - Type FSBS Track & Switch Heaters
Many new style spring frogs have a rectangular channel manufactured into the base of the frog casting. The channel is designed to extend from the frog heel to the toe and is open on each end. The SwitchBlade® heater is installed in the milled slot in the base of the spring rail frog. For older style Spring Frog Applications see our Spring Rail Frog Heating Retrofit.