Centrifugal fans
Rotor surface: painted black
Degree of protection: IP20
Insulation class: F
Humidity class: F
Environmental protection class: H1
Mounting position: shaft horizontal or rotor below; rotor above on request
Duty type: S1
Motor protection: internal thermal protector (TW)
Cable design: variable
Protection class: rotor with basic insulation; no connection to the protective conductor