FF71A

Air flow switches with flange and stainless steel paddle

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FF71A FOR MORE INFO

• DESCRIPTION
• TECHNICAL SPECIFICATION
• HOMOLOGATION AND INSTALLATION
• TECHNICAL LITERATURE

• DESCRIPTION
  0

  Suitable for signalling, controlling and regulating the air flow in air conditioning systems; to control fans, compressors, etc.

  General features

  • Case in shock-proof plastic with self-retaining screws
  • AISI 301 stainless steel flexible blade (50 x 165 mm)
  • Electric connections on Faston 6.3 (provided)
  • Calibration screw for adjusting the cut-in point
  • PVC flange, 5 mm thick
  • Compliance with standards CEI EN 60730-1.
  • SPDT single-pole switching microswitch

  Electric features

  • Rated insulation voltage Ui 380V~
  • Continuous duty rated current  Ith 10A
• ADVANTAGES
  0

  Suitable for signalling, controlling and regulating the air flow in air conditioning systems; to control fans, compressors, etc.

  Advantages
• TECHNICAL SPECIFICATION

  CODE	MIN DISENGAGE VALUE (C-NO opens, C-NC closes)	MIN ENGAGE VALUE (C-NC opens, C-NO CLOSES)	MAX DISENGAGE VALUE (C-NO opens, C-NC CLOSES)	MAX ENGAGE VALUE (C-NC opens, C-NO closes)
  FF71A	2.5 m/sec	3.1 m/sec	6.4 m/sec	7 m/sec

• HOMOLOGATION AND INSTALLATION
  Homologation

  • Complies with CEI EN 60947-5-1 standards

  Installation and use

  • Whenever possible, the air flow switches should be installed on a horizontal part of the piping or ducting.

  • A flexible blade, of appropriate dimensions, is activated by the air flow, determining an angular displacement of a rod that, mechanically connected to a fluctuating arm, actuates an electric SPDT switch.
  • Avoid therefore to place it where air currents are too strong, as well as near bends, fans or at any point where excessive turbulence may occur.
  • The arrow on the cover must correspond to the direction of the air flow.
• TECHNICAL LITERATURE
  • FF71A EN-FR-ES-DE-RU instructions
• FAQS