Ruffneck 7.5kW 480V T3B FX6 Electric Air Heater (FX6-480360-075-TD)

The Ruffneck 7.5kW 480V T3B FX6 Electric Air Heater (FX6-480360-075-TD) represents a trusted solution for heating in challenging and potentially explosive industrial environments. Building upon the established performance of previous models, the FX6 series integrates enhanced safety measures and robust construction, solidifying the Ruffneck name as a standard for reliable heating in severe service applications.

This 7.5kW, 480V, 3-phase electric forced air heater is specifically designed for dry indoor industrial settings such as oil refineries, petrochemical plants, pulp and paper mills, grain elevators, hazardous waste storage facilities, and wastewater treatment plants, where explosive gases or dust may be present. It performs effectively in extreme low ambient operating temperatures down to -58°F (-50°C), providing essential warmth and maintaining operational conditions in critical areas.

KEY FEATURES AND BENEFITS:

• Enhanced Safety Protocols: Incorporates two distinct levels of over-temperature protection as a standard feature, alongside backup over-pressure protection. This layered approach provides increased operational safety and reliability.
• Low Ambient Temperature Operation: Engineered to function effectively in extremely cold environments, capable of operating at temperatures as low as -58°F (-50°C).
• Dedicated Backup Protection: Features a dedicated contactor for the backup over-temperature protection circuit, ensuring an independent safety mechanism.
• Hazardous Location Compliance: cULus certified for a wide range of hazardous location classifications including Class I, Divisions 1 and 2 (Groups C and D), Class II, Divisions 1 and 2 (Groups E, F and G), Class I, Zones 1 and 2 (Groups IIA and IIB), and Zones 20, 21 & 22.
• Simplified Installation: Designed with a larger junction box to facilitate easier wiring and installation processes.
• Precise Airflow Control: Adjustable louvers allow for specific directional control of the heated airflow, optimizing heat distribution within the space.

SPECIFICATIONS:

• Model Number: FX6-480360-075-TD
• Power Output: 7.5 kW
• Voltage: 480V, 3-phase
• Amperage: 10.2 Amps
• Heat Output: 25,600 BTU/hour
• Air Flow: 850 CFM
• Temperature Code: T3B [329°F (165°C)]
• Dimensions (L x W x H): 24.125 in x 24.63 in x 19.13 in
• Product Weight: 156 lbs
• Control Circuit: 120V, 0.128 amps, 15 VA (Grounded)
• Contactor Rating: 75 amps, rated for 1,000,000 mechanical operations
• Warranty: 3-year limited warranty

HOW TO USE:

1. Placement: Identify a suitable dry indoor location within the hazardous environment. The heater is designed for surface mounting (wall or ceiling). Ensure adequate clearance around the unit as specified in the installation manual for proper airflow and safety.
2. Mounting: Securely mount the heater using appropriate hardware for the chosen wall or ceiling surface. Refer to the detailed mounting instructions and diagrams in the product's official user manual for specific requirements and recommendations.
3. Electrical Connection: Have a qualified electrician hardwire the unit to a compatible 480V, 3-phase power supply, ensuring all local electrical codes and safety regulations for hazardous locations are strictly followed. Connect the control circuit as per the wiring diagram.
4. Initial Check: Before energizing, verify all connections are secure and the unit is properly grounded. Inspect for any signs of shipping damage or loose components.
5. Operation: Once installed and verified, power on the heater. If equipped with an optional thermostat, set the desired temperature. The fan will activate, distributing heated air.
6. Airflow Adjustment: Adjust the directional louvers as needed to direct the forced airflow towards the area requiring heat.
7. Regular Maintenance: Follow the maintenance schedule provided in the user manual, which typically includes periodic inspection of components, cleaning of fan blades, and checking safety features.

BENEFITS OF USING RUFFNECK 7.5KW 480V T3B FX6 ELECTRIC AIR HEATER (FX6-480360-075-TD):

• Enhanced Operational Safety: The integrated dual over-temperature and over-pressure protection systems provide critical safeguards, minimizing risks in hazardous environments.
• Consistent Heating Performance: Delivers a reliable 25,600 BTU/hour heat output and 850 CFM airflow, ensuring effective temperature maintenance even in demanding industrial settings.
• Compliance for Hazardous Locations: Its cULus certification for various hazardous location classifications makes it a suitable and compliant choice for a wide array of industrial applications where safety is paramount.
• Long-Term Reliability: Constructed with a robust 12-gauge steel cabinet with epoxy coating and high-grade heating elements, designed for extended service life in harsh conditions.
• Cost-Effective Operation: Forced air design ensures efficient heat distribution, helping to reduce energy waste.

FEATURES:

• Heater core assembly contained within a sturdy, epoxy-coated 12-gauge steel cabinet.
• Three long-life, low-watt-density, high-grade metal-sheathed heating elements.
• Explosion-proof motor with thermally protected, permanently lubricated ball bearings and 1725 RPM.
• Heat transfer fluid composed of long-life formulated propylene glycol and water.
• Backup over-pressure protection with a preset 100 psig (690 kPa) pressure relief valve.
• Narrow gap, two-piece fan guard designed to shield moving parts; a 1/4" probe will not enter.
• Safety protection circuit features a snap-action bimetal switch rated for 100,000 cycles at 10 amps.
• Slim junction box dimensions provide a manageable space for electrical connections.
• Heavy-walled 0.122" (3.1 mm) steel conduit material ensures protection of wiring.
• Optional built-in explosion-proof thermostat available (36°F to 82°F / 2°C to 28°C range).
• All fasteners are zinc plated for improved corrosion protection.