SmartFan® Nimbus – AC Fan Control / AC Motor Control
Operation / Installation PDF
SmartFan Nimbus AC motor speed control is designed to control AC motors, pumps and fans in HVAC, electronics and industrial control applications. Nimbus provides AC motor speed control for single phase AC motors approved for voltage control in applications including; humidity control, clean room pressurization, equipment cooling, exhaust ventilators, duct fans & blowers. Nimbus accepts 115 or 230 VAC power source and provides AC motor speed control from a control signal (0-20 mA, 0-10 VDC), remote transducer or up to three remote temperature sensors.
Automatic voltage and frequency detection, current ratings up to 7.5 Amps and three mounting and connection configurations make this AC motor speed control extremely flexible and economical. Benefits of using SmartFan Nimbus for AC motor speed control include acoustical noise reduction, environmental (humidity, temperature or pressure) regulation, greater product reliability, improved safety and energy savings.
CAUTION – SmartFan Nimbus is designed for OEMs (Original Equipment Manufacturers) and is not intended for end-user or after-market applications. The Nimbus should only be used with compatible induction motors (Permanent Split Capacitor (PSC) or Shaded Pole) that are approved by the motor manufacturer for TRIAC (voltage) control. Attempting to control a fan or motor that is not compatible could cause excessive heating and/or permanent damage to the motor.
Control Comparison & Motor Efficiency – See technical article on how the Nimbus AC motor speed control compares to other controller technologies.
|Specifications||Features / Selectable Options|
Nimbus AC Fan & Motor Speed Controller Dimensions
X = 0.86″ (21.8mm) for 240x2xxx-F
X = 1.06″ (26.9mm) for 240x6xxx-F
X = 2.06″ (52.3mm) for 240x7xxx-F
Electrical job box mount style CRI# 240x3Wxx-F or 240xJWxx-F
For CAD drawings, use the links in Additional Information below.
Nimbus AC Fan & Motor Speed Controller Part Numbers
|Part Number||Current Ratings
(Amps @ 40C)
|Packaging||Connections||Control Options||Stock Product|
|240B2T00-F||0. 15 to 2.5||PCB||Terminal Blocks||4-20mA or
|240B6T00-F||0.5 to 6.0||PCB||Terminal Blocks|
|240B7T00-F||0.5 to 7.5||PCB||Terminal Blocks|
|240B3W00-F||0.15 to 2.5||Job Box Cover Plate||18 AWG Wires|
|240BJW00-F||0.5 to 7.0||Job Box Cover Plate||18 AWG Wires|
|240T2T00-F||0.15 to 2.5||PCB||Terminal Blocks||Transducer1or
|240T6T00-F||0.5 to 6.0||PCB||Terminal Blocks|
|DIN350-F||Optional Plastic DIN Rail Mount (compatible with PCB package only – click for dimensions)|
1 When used in the temperature sensor or transducer control mode, a sensor is required. Choose an air, surface or liquid thermistor temp sensor from Control Resources or use your own transducer.
Ordering Information: The Nimbus is designed for Original Equipment Manufacturers (OEM) and is not intended for end-user or aftermarket applications. The Nimbus should only be used with compatible induction motors (Permanent Split Capacitor (PSC) or Shaded Pole) that are approved by the motor manufacturer for TRIAC (voltage) control prior to use. Attempting to control a motor that is not compatible could cause excessive heating and/or permanent damage to the motor. A $400 minimum order applies to this product.
To talk to an Engineer or Service Representative, call (978) 486-4160 (9:00 AM – 5:00 PM EST)