• Box incorporating a long shell made of hot-dip galvanized steel sheet in accordance with EN 1461. Double-skin panels with 50mm polyurethane insulation.
• Box and ferrule for corrosion class C4 environments.
• High-efficiency injected aluminum propeller 3, 5, 6, 7, 9 or 12 blades dynamically balanced according to ISO 14694: G6.3. with variable inclination angles when stationary except for 2-pole motor, to respond precisely to all flow/pressure requirements. Certified TGT fan AMCA.
• The standard design incorporates a base.
• Waterproofing 3/h/m² at 50Pa.
• Insulation U = 0.42W/(m2K) without thermal bridge.
• Snow load SL 1000 at -25°C according to EN 12101-2.
• Wind resistance WL 1,500 (sizes 500 to 1,000) or 1,000 (sizes 1,120 and 1,250) according to EN 12101-2.
• 2-speed opening mechanism 20,000 cycles with opening/closing limit switches for external control box type control CCAC (accessory).
• Connection boxes IP65 independent for motor with disconnector and for servomotors (220-240V 50Hz IP65).
• The cover must be controlled to open before the fan starts and to close after it stops. The control box CCAC (accessory) performs this sequence.

• Three-phase asynchronous motor directly coupled to the propeller, without thermal protection. 1-speed motors by default
• Possible control by frequency variation.
• 1-speed motor with B3 feet, IP55, class H:
  • three-phase 2, 4 or 6 poles 230/400V, 50/60Hz* up to 3 kW.
  • three-phase 2, 4 or 6 poles 400V, 50Hz above 3 kW.
• 2-speed motor (Dahlander windings) with B3 legs, IP55, class F:
• three-phase 2/4, 4/6, 4/8 or 6/12 poles 400V, 50Hz.

* According to characteristics

• The engine should start after 20 to 36 seconds after the lid opening request, depending on the product characteristics. The control box CCAC manages this sequence.

• Painting according to RAL code.
• Engines with preheating resistors, PTC or PTO sensors.