SmartFan Nimbus is a compact, TRIAC based fan & motor control designed for OEM applications in HVAC, electronic and industrial control markets. The Nimbus automatically controls single phase motors that have been approved for voltage control by the motor manufacturer. Typical applications include: humidity control, clean room pressurization, equipment cooling, ceiling fans, exhaust ventilators, pumps, duct fans & blowers. The Nimbus regulates motor speed from a control signal (2-10 VDC, 4-20 mA), humidity sensor, pressure transducer, flow transducer or up to 3 remote temperature sensors. Automatic voltage and frequency detection, current ratings up to 7.5A and 3 mounting and connection configurations, including DIN rail mount and ”4x4 job box” mount, make this microprocessor based design extremely flexible and economical. Controls fan/motor speed based on: — 4-20 mA control signal — 2-10 VDC control signal — Remote temperature sensors (supplied separately) — Remote transducer (humidity, pressure, flow etc.) — On board pressure transducer Power source: 95-250 VAC, automatically detected Frequency: 47-64 Hz, automatically detected Fan On/Off threshold selectable by DIP Switch AC Motor Type Compatibility: PSC (Permanent Split Capacitor) or Shaded Pole, automatically detected. Full voltage start pulse RoHS (6/6) compliant UL recognized to UL508, CSA-C22.2, File E100344 SELECTABLE OPTIONS Current ratings: 2.5A to 7.5A (at 40C still air) Mounting Options: PCB mount, DIN Rail mount, 4x4 electrical job box mount 4 selectable temperature settings 10 selectable pressure settings 64 selectable fixed speed settings Temperature alarm and lost signal alarm Accepts up to 3 temperature sensors Selectable idle speeds and control temperature slope