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SmartFan Nimbus AC Motor Speed Control |
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| 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. |
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CAUTION: SmartFan AC motor speed control products are designed for OEMs (Original Equipment Manufacturers) and are not intended for end-user or after-market applications. SmartFan AC motor speed control products should only be used with compatible induction motor (Permanent Split Capacitor (PSC) or Shaded Pole) that are approved by the motor manufacturer and thoroughly validated for voltage control prior to use. 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. |
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Product Features - SmartFan Nimbus AC Motor Speed Control |
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- Power
source: 95 - 250 VAC, automatically detected.
- Frequency:
47-64 Hz, automatically detected.
- AC
Motor Type Compatibility:voltage controllable PSC (Permanent Split Capacitor) or Shaded Pole, motor type automatically
detected
- Full
voltage start pulse
- Does
not require a separate low voltage power source
- Temperature
alarm output when control is based on remote temperature
sensor(s)
- UL
recognized to UL508, CSA-C22.2, File E100344
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Selectable Options - SmartFan Nimbus AC Motor Speed Control |
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- Current
ratings: 2.5A to 7.5A (at 40°C still air)
- AC Motor Speed Control
based on:
0-20 mA control signal
0-10 VDC control signal
Up to three remote temperature sensors (supplied separately)
Remote transducer (humidity, pressure, flow, etc.)
On board pressure transducer
- Mounting
options:
PCB mount
DIN Rail mount
4x4 electrical job box mount
- Connections:
Terminal block
18 AWG wires (job box only)
- Dip
switch allows user selectable settings of:
4 control (full speed) temperature settings
2 slope (difference between full and idle) settings
4 idle speeds
Motor on/off threshold
10 pressure settings
64 fixed speed settings
- Sensors
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Fig.
4
X = 0.86" (21.8mm) for 240x2xxx
X = 1.06" (26.9mm) for 240x6xxx
X = 2.06" (52.3mm) for 240x7xxx |
Fig.
5
Electrical
job box mount style CRI# 240x3Wxx or 240xJWxx |
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Part Numbering System1 - SmartFan Nimbus AC Motor Speed Control |
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| Nimbus2 |
Control
Mode3 |
Current
Rating5 /
Packaging |
Connector |
Special
Features |
| 240 |
B
= Current, voltage, temperature, remote transducer
or fixed speed
T2 = Temperature and remote transducer
only
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2
= 0. 15 to 2.5 Amps
3 = 0. 15 to 3.0 Amps (Job Box only)
6 = 0. 50 to 6.0 Amps
7 = 0. 50 to 7.5 Amps
J = 0. 50 to 7.0 Amps (Job Box only) |
T
= Terminal Block
W = 18awg wires (Job Box only) |
00
= standard
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1Confirm TRIAC (voltage) controllability with the fan/motor
manufacturer before ordering.
2Nimbus part numbers are RoHS 5/6 (contains lead) compliant. For full 6/6 compliance, add a "-F" suffix to the part number.
3When used in the temperature or remote transducer
control mode, a sensor (sold separately) is required.
Choose an air, surface or liquid temperature sensor
or humidity sensor from the CRI catalog or via your
own transducer.
4A minimum order of 50 units is required to supply
T models.
540°C, still air, max current rating.
| Stock
Product |
240B2T00 (Fig. 2)
240B3W00
240B6T00
240BJW00 (Fig. 3) |
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DIN
Rail Option (Fig 1):
Units supplied in circuit board form may be mounted
on a DIN rail using DIN rail kit CRI #DIN350-F.
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Manual Pages - SmartFan Nimbus AC Motor Speed Control |
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Use the links below for addtional manual pages or for a complete manual (9 pages), click on the Operation/Installation Manual PDF link above.
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