Overview
The Watlow 66A5G FIREROD cartridge heater is a precision industrial heating element engineered for demanding thermal applications. The FIREROD cartridge heater was patented as the first swaged cartridge heater in 1954; the mechanical procedure of swaging reduces the diameter of the heater by compacting the unit, which directly improves the heat transfer and efficiency of the heater. Built using only the finest materials and construction methods, the 66A5G delivers reliable performance in high-temperature environments where corrosion resistance and heat uniformity are critical.
Key Features
- Swaged cartridge design: Reduces diameter through compacting, improving heat transfer and heater efficiency.
- Alloy 800 sheath: Resists oxidation and corrosion from heat, many chemicals and atmospheres.
- Nickel-chromium resistance wire: Ensures even and efficient distribution of heat to the sheath.
- Magnesium oxide insulation: Results in high dielectric strength and contributes to faster heat-up.
- Quality assurance: ISO 9001 certified manufacturing with UL and CSA approved lead wires.
Technical Specifications
- Maximum part temperature: 1400°F (760°C)
- Maximum watt density: 400 W/in² (69 W/cm²)
- Maximum voltage: Up to 480V
- Sheath material: Alloy 800
- Resistance wire: Nickel-chromium
- Insulation: Magnesium oxide
- Certifications: ISO 9001, UL approved, CSA approved
- Lead wire insulation rating: Up to 480°F (250°C)
Typical Applications
- Industrial process heating and thermal control
- Injection molding and extrusion equipment
- Semiconductor and electronics manufacturing
- Chemical processing and industrial furnaces
- Medical and laboratory equipment
- High-temperature testing and research applications
Compatibility & Replacements
Compatible With
- Watlow power controllers and temperature regulation systems
- Standard industrial electrical systems up to 480V, 3-phase and single-phase
- Thermal management systems requiring cartridge heater elements
- Custom and OEM heating applications requiring alloy 800 construction
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Contact Watlow or your equipment manufacturer to confirm if the 66A5G matches your original heater specifications.
Works With
- Watlow temperature control systems and power controllers
- Industrial temperature sensors and thermocouples
- Standard industrial electrical distribution and switching systems
- Thermal monitoring and control automation systems
