Purchase now: Pfannenberg 17040315007 FLH 400 Fan Heater (115V)
Purchase now: Atlantech Drives provides you the Pfannenberg 17040315007 (Model: FLH 400), a high-capacity 400 Watt Fan Heater engineered for 115 V AC power supplies. This active heating unit is a critical component for protecting electrical enclosures in the North American market or specific 110V control environments. Its primary function is to prevent the temperature inside the cabinet from dropping below the dew point, thereby eliminating the formation of condensation which causes corrosion and electrical arcs.
Technical Specifications and Forced Convection
Unlike simple radiant heaters, the FLH 400 features an integrated high-performance axial fan. This fan circulates air at approximately 50 m³/h, ensuring that the 400W of heat energy is distributed evenly throughout the enclosure rather than just heating the air immediately adjacent to the device. This forced convection is essential for large or densely packed cabinets where «dead air zones» can otherwise lead to localized freezing or condensation.
- Part Number: 17040315007.
- Model: FLH 400.
- Heating Output: 400 Watts.
- Operating Voltage: 115 V AC (50/60 Hz).
- Airflow: 50 m³/h (Active Circulation).
- Starting Current: Approx. 3.5 A.
- Connection: Terminal block (cage clamp).
- Mounting: Clip for 35mm DIN Rail or Screw mounting.
- Approvals: UL, cUL, CE.
Expert Installation Advice: Thermostat Pairing
The FLH 400 is a «slave» heater, meaning it does not have a built-in thermostat. Expert Tip: To operate this heater efficiently, you must wire it in series with a control device. We recommend the Pfannenberg FLZ 510 Thermostat (Red Dial, NC Contact). Set the thermostat to +10°C. This ensures the heater only turns on when the ambient temperature drops near freezing, saving significant energy costs compared to running it continuously.
Frequently Asked Questions (FAQs)
Q: What happens if I connect this to 230V?
A: Do not do this. Connecting a 115V heater to a 230V supply will cause the element to overheat instantly and likely burn out the fan motor, posing a fire risk. Verify your control voltage before installation.
Q: Can I mount it horizontally?
A: Vertical mounting is strongly recommended to assist the natural convection of heat. Horizontal mounting may lead to heat buildup inside the heater housing, tripping the internal thermal safety cutout.
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