Watlow L15A35 FIREROD Cartridge Heater Assembly

The Watlow L15A35 FIREROD cartridge heater delivers reliable, high-temperature heat transfer for continuous operation in industrial process heating and thermal control systems. This 15-inch long, 5/8-inch diameter insert-style cartridge heater is part of Watlow’s FIREROD line and operates from 240 VAC at up to 750 watts, with a sheath of Alloy 800 / Incoloy for robust performance in demanding environments. It is designed for precise temperature management in compact equipment assemblies and is commonly used in packaging machinery, molds and dies, industrial ovens, and various manufacturing tools where stable heating and continuous operation are essential. Typical applications include plastic processing machinery, sealing equipment, industrial tooling, packaging systems, and thermal processing equipment requiring controlled heat distribution and reliable temperatures. Maximum operating temperature is up to 1400°F (760°C) with a maximum watt density of up to 400 W/in², supporting steady heat transfer and rapid response in dynamic industrial processes. Installation is insert-style, suitable for retrofit and replacement in existing systems, and it is compatible with common cartridge heater replacements such as Chromalox, Tempco, and Omega. The L15A35 is a purpose-built solution for industrial electric process heating and temperature control across packaging, tooling, ovens, and process heating applications.