ABB is a technology-based provider of power and automation products, systems, solutions and services, helping its customers become more productive and energy efficient while reducing environmental impact.

Smoke Venting motors
Many fire protection solutions require smoke ventiing fans to extract gases into the open air. The system is generally designed so that the fans provide standard ventilation in normal working conditions and smoke extraction in emergencies.

ABB smoke extraction motors are designed and certified for both direct on line (DOL) and variable speed drive operation (VSD), both in normal ventilation and emergency situations.

  • Certified for both horizontal and vertical mounting
  • Comply with the European standard and offer maximum performance in both normal and emergency condifions


ABB smoke extraction motors have been tested according to EN 12101-3.

ClassTemperature C, timeDuty
F200-120200C, 120 minDOL, VSD
F300-60300C, 60 minDOL, VSD
F400-120400C, 120 minDOL, VSD
T250-120250C, 120 minDOL, VSD

Application Principle

Hot some gases rising to the ceiling are evacuated by the fans, while fresh air is replenished further down, creating an area free from smoke at the floor level. Smoke venting fans can also be used for creating differential pressure between areas of building, to prevent smoke from spreading between them. Smoke venting fans and the motors driving them are designed to cope with the high temperatures that develop during a fire. Special type of bearings fitted with high temperature grease are used. The motors must be connected using heat resistant cable classified for the appropriate temperature and time.

Smoke venting fans can be placed in ventilation duct, inside the room that is being protected, or outside the room to push cool air into the room during a fire. Some fans have a dedicated supply system for cooling air.


Technical Specifications

Output power0.55 to 630 kW
Frame sizeIEC 80 to 400
Frame materialAluminum or cast iron
Number of poles2-pole up to size 250, 4-12 pole
Speedsingle- or two-speed
Network VoltagesUp to 690 V
FrequencyVariable speed range up to 1800 r/min

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