Description
The Ruffneck 25kW 480V T3B FX6 Electric Air Heater (FX6-480360-250-T) is a specialized explosion-proof forced air heater built for hazardous industrial environments. It’s certified for a wide range of explosive gas and dust classifications, making it ideal for high-risk locations. Designed for extreme climates, it operates efficiently down to −58°F (−50°C) with safety features such as dual over-temperature protection, over-pressure safeguards, and a secondary thermal protection contactor. Built with durability in mind, it includes a heavy-duty core, epoxy-coated steel cabinet, and zinc-plated fasteners. It also features three long-life heating elements and an aluminum fan for efficient heat delivery. Installation and maintenance are simplified with a large junction box and a removable heating core.
KEY FEATURES AND BENEFITS:
- Certified for hazardous locations: Class I, Division 1 & 2, Groups C & D; Class II, Division 1, Groups E, F & G; Class II, Division 2, Groups F & G; Class I, Zones 1 & 2, Groups IIA & IIB
- Temperature Code T3B: Limits surface temperature to 329°F (165°C)
- Extreme cold capability: Operates at ambient temperatures as low as −58°F (−50°C)
- Dual over-temperature protection: Built-in safety mechanisms
- Over-pressure protection: Preset at 100 psig (690 kPa)
- Secondary thermal protection: Dedicated contactor
- Durable construction: Heavy-duty core, epoxy-coated 12-gauge steel cabinet, zinc-plated fasteners
- Efficient heating: Three low-watt-density, high-grade metal-sheathed heating elements
- Aluminum fan blade: Ensures effective air movement
- Adjustable louvers: For directional airflow
- Easy maintenance: Large junction box and bottom-removable heating core
SPECIFICATIONS:
- SKU: PBFX6480360250T
- Power/Wattage: 25 kW
- Voltage: 480V, 3-Phase
- Amperage: 31.3 Amps
- BTU/Hr: 85,300 BTU
- Air Flow: 3,600 cfm
- Control Circuit: 120V, 0.128 amps, 15 VA
- Contactor: 75 amps, with a 120V, 15 VA coil (separately fuse-protected)
- Warranty: 3-year limited warranty
- Certifications: UL-CUL/US
- Capacity: 25 kW
HOW TO USE:
- Installation Preparation: Position the heater in a certified hazardous indoor area. Confirm the mounting surface can support its weight.
- Electrical Connection: Hardwire the heater to a 480V, 3-phase source using local electrical codes and wiring diagrams. Connect the control circuit to a 120V source.
- System Integration: Set the built-in thermostat (if used) between 36°F and 82°F (2°C to 28°C) or configure an external system accordingly.
- Initial Startup: After confirming all connections, power on the unit. The fan will start and heating elements will activate.
- Airflow Adjustment: Use the integrated louvers to direct heated air where needed.
- Monitoring and Maintenance: Periodically inspect operation. The core can be easily removed through the bottom for servicing. Always follow safety protocols.
BENEFITS OF USING RUFFNECK 25KW 480V T3B FX6 ELECTRIC AIR HEATER (FX6-480360-250-T):
- Ensures safe operation: Certified for explosive environments
- Built for durability: Heavy-duty components reduce wear and tear
- Performs in extreme cold: Suitable for −58°F (−50°C) climates
- Minimized maintenance: Easy-access core and large junction box
- Reduces downtime: Reliable heating avoids system interruptions
- Peace of mind: Multiple integrated safety protections
FEATURES:
- Hazardous location certification: Covers Class I & II divisions and zones
- Thermal safety: T3B rating ensures surface temp does not exceed 329°F (165°C)
- Cold climate operation: Works effectively down to −58°F (−50°C)
- Multiple protections: Includes over-temperature, over-pressure, and thermal contactor
- Corrosion-resistant build: Epoxy-coated 12-gauge steel cabinet
- Efficient heat transfer: Uses low-watt-density heating elements and aluminum fan
- Easy installation and maintenance: Large junction box and bottom-removable core
- Explosion-proof motor: Thermally protected and permanently lubricated
- Thermostat compatibility: Optional built-in explosion-proof model available
- Internal fluid composition: Formulated propylene glycol and water mix





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