Technical description
Weight: 8.8 kg
Fan size : 250 mm
Electronics housing material :Die-cast aluminum
Impeller material : PP plastic
Support plate material : Sheet steel, galvanized
Support bracket material : Steel, painted black
Inlet nozzle material : Sheet steel, galvanized
Number of blades : 6
Direction of rotation : Clockwise, viewed toward rotor
Degree of protection : IP55
Insulation class : “F”
Moisture (F) / Environmental (H) protection class : H1
Ambient temperature note : Occasional start-up between -40°C and -25°C is permissible.
For continuous operation at temperatures below -25°C (e.g. refrigeration
applications) we recommend our fan design with special low-temperature bearings.

Max. permitted ambient temp.for motor (transport/storage) : + 80 °C
Min. permitted ambient temp. formotor (transport/storage) : – 40 °C
Installation position : Shaft horizontal or rotor on bottom; rotor on top on request
Condensation drainage holes : On rotor side
Motor storage : Ball bearing
Technical features :
– Output 10 VDC, max. 10 mA
– Operation and alarm display
– External 24 V input (parameter setting)
– Alarm relay
– Integrated PID controller
– Motor current limitation
– PFC, passive
– RS-485 MODBUS-RTU
– Soft start
– EEPROM write cycles: 100,000 maximum
– Control input 0-10 VDC / PWM
– Control interface with SELV potential safely disconnected from the mains
– Thermal overload protection for electronics/motor
– Line undervoltage / phase failure detection

Touch current according to IEC 60990 (measuring circuit Fig. 4,TN system) : <= 3.5 mA
Motor protection : Thermal overload protector (TOP) internally connected
With cable : Variable
Protection class : I (with customer connection of protective earth)
Conformity with standards : EN 61800-5-1; EN 60335-1; CE
Approval : C22.2 No.77 + CAN/CSA-E60730-1; UL 1004-7 + 60730