Wire Description The Mad Rabbit Kanthal Wire is a ferritic iron, chromium-aluminum alloy and is used to build a number of types of coils for RDAs that are used on both mechanical mods and regulated mods. Kanthal wire can be heated at temperatures up to 2550 degrees F or 1400 degrees C. The actual type of wire size is identified by the gauge, and multiple gauges are available. Kanthal wire can be used in making different sizes and on many different types of RBAs. There are many different types of wick the user can choose from that works with Kanthal wire. The number of wraps and gauge of wire are the two main factors that will determine the ohm of each coil created.