Purchase now: Pfannenberg 11786001055 PTF 60.700 Roof Fan
Purchase now: Atlantech Drives provides you the Pfannenberg 11786001055 (Model: PTF 60.700), a high-performance Roof-Mounted Filterfan designed for industrial enclosures where floor space is premium and side-mounting is not an option. The PTF 60.700 extracts heat from the most critical area of the cabinet—the top—utilizing the natural physics of rising heat to cool drives and transformers more efficiently than side-mounted units in crowded aisle layouts.
Vertical Cooling Technology
The PTF 60.700 operates at 230 V AC (50/60 Hz) and delivers a powerful unimpeded airflow of approximately 550 to 600 m³/h. It features a robust steel hood painted in RAL 7035 (Light Gray), which protects the fan and cabinet from falling debris and vertical water ingress. The internal radial fan is optimized for high pressure, ensuring consistent airflow even when the intake filter at the bottom of the cabinet begins to load with dust.
- Part Number: 11786001055.
- Model: PTF 60.700.
- Voltage: 230 V AC.
- Airflow: ~550 m³/h (System airflow depends on inlet).
- Cutout: 291 x 291 mm.
- Protection: IP 33 (Standard) / IP 54 (Optional).
- Maintenance: Tool-less filter access from top.
- Connection: Terminal strip.
Expert Installation Advice: The «Passive Inlet» Requirement
A roof fan extracts air, but that air must come from somewhere. Expert Tip: You must install an adequately sized intake filter (e.g., Pfannenberg PFA 60.000) at the bottom of the enclosure door. Without this intake, the PTF 60.700 will create a vacuum, starving the fan motor and reducing cooling to near zero. The larger the intake filter, the better the total airflow.
Frequently Asked Questions (FAQs)
Q: How do I change the filter mat?
A: The metal cover features a quick-release mechanism. You can open it from the top to replace the mat without needing to open the electrical cabinet or shut down the machine.
Q: Is it loud?
A: Roof fans are generally quieter than door fans for the operator because the noise source is directed upwards, away from ear level.
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