Controller for two speeds fan motor RD 4.0 EX
Controller RD 4.0EX is designed for two-speed explosion-safe (EX) fan motors with star/delta electrical connection. The controller has a motor overheating protection function. If the motor overheat protection gives a signal that the motor winding temperature is too high, the controller cuts off the power supply to the motor.
TECHNICAL DATA
- Power supply: 400 VAC.
- Frequency: 50/60 Hz.
- Motor power and current: max. 4,0 kW, 9,0 A.
- Protection class: IP54.
- Max. ambient temperature: 40°C.
