Products
SRFH - Download PDF Switch Rod Heaters Application: Actuator Rod Snow and Ice Melting Switch rod (SRFH) heaters are designed specifically to keep switch actuator rods free and clear of snow and ice. These heaters have a flat heating surface and are positioned underneath the rails directly below the switch’s actuator rods. The heater’s standard output is nominally 250 watts/ft2 at the specified operating voltage. Optional rail braces are available for anchoring heater in place. Design. . . SRFH heaters are manufactured to meet the specific needs of each transit company based on the available power supply. A typical installation will include a review of the rail and switch profiles and a determination of the power requirements for the application. Products sub1 6_files/SRFHCut.pdfshapeimage_9_link_0
PRODUCT SPECIFICATIONS Installation. . . The standard SRFH heaters are a flat measuring 8” wide X 36”, 60” & 72” long with a 3⁄4” high flange along each long side to assist in directing snow and ice melt away from the switch. These heaters are rugged, yet flexible enough to be easily adapted to the requirements of a rail switch rod installation. The standard electrical connection is made with simple crimp type connections, insulated with heat shrink to make a watertight connection. Two field adjustable tie down brackets are supplied with each heater for anchoring the heaters between the wooden ties. Construction. . . Inside the SRFH heater is a rugged, parallel path resistive heating element that is encapsulated between two layers of high temperature fiberglass reinforced silicone rubber. This encapsulated element is further encased between two galvanized steel panels for further protection. Three foot cold leads are connected in a galvanized junction box located at one end of the heater. Lead length and configuration can be modified to the application requirements.
Rail Heating Products & Services              108 Linda Dr., San Marcos TX 78666               Telephone (512) 396-4328