SmartFan® Nimbus-HP
Speed Control for AC Fans, Pumps and Motors
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Fan, Pump and Motor Speed Control |
Fig. 1: Nimbus-HP AC Motor Speed Control model TRC1800-F
Fig. 2: Nimbus-HP AC Motor Speed Control with cover model TRC1800E-F
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Nimbus-HP AC Motor Speed Control for Motors, Fans and Pumps
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| SmartFan Nimbus-HP is a TRIAC based fan, pump and motor speed control designed for OEM applications in HVAC, electronic and industrial control markets. The Nimbus-HP automatically controls single phase motors that have been approved for voltage control by the motor manufacturer. Nimbus-HP regulates motor speed from a control signal (2-10 VDC, 4-20mA) or up to three remote temperature sensors (thermistor). Typical applications include: humidity control, clean room pressurization, equipment cooling, heat exchangers, exhaust ventilators, pumps, duct fans & blowers. |
On-board programming allows the setting of many parameters providing maximum flexibility. Special and custom variable speed control configurations are available.
Benefits of using SmartFan Nimbus-HP motor speed control include acoustical noise reduction, environmental (humidity, temperature or pressure) regulation, greater product reliability, increased
fan life, improved safety and energy savings |
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CAUTION: SmartFan AC motor speed controls are designed for OEM (Original Equipment Manufacturers) and are not intended for end-user or after-market applications. SmartFan AC motor speed controls should only be used with compatible induction motors: Permanent Split Capacitor (PSC) or Shaded Pole. All AC motors must be approved by the motor manufacturer or thoroughly validated 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-HP AC motor speed control compares
to other controller technologies. |
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Nimbus-HP AC Motor Speed Control for Motors, Fans and Pumps - Specifications |
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- Power
source: 85 - 305 VAC, automatically detected
- Frequency:
47-64 Hz, automatically detected
- Output power ratings at 65°C: 8 to 18 Amps
- Motor type: Induction either permanent split capacitor (PSC) or shaded pole motors
that have been approved for voltage control by the motor manufacturer
- Input power and motor connections: 1/4" quick connects
- Control signal, sensor and alarm connections: Terminal Block
- Full voltage start pulse
- Storage temperature: -40°C to 125°C
- Operating temperature: -20°C to 65°C
- Temperature accuracy and hysteresis: 2°C
- Weight: 1.25 lb. (567 grams)
- Weight with cover: 1.90 lb. (862 grams)
- RoHS (6/6) compliant
- Agency approvals pending
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Nimbus-HP AC Motor Speed Control for Motors, Fans and Pumps - Features |
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- Controls fan/motor speed based on:
- 4-20 mA control signal
- 2-10 VDC control signal
- Up to three remote temperature sensors (supplied separately)
- Dual control option (i.e. temperature and humidity)
- Programmable temperature control mode options:
- Four full speed temperature settings
- Two control temperature slopes
- Four idle speed settings
- Programmable fan/motor turn off at idle
- 64 fixed speed settings
- Remote alarm signal to indicate loss of control signal or over temperature condition
- Optional metal cover
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Nimbus-HP AC Motor Speed Control for Motors, Fans and Pumps - Part Numbering |
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| Part No. |
Power Source |
Output Power Rating at 65°C |
Enclosure |
| TRC1800-F |
85-250 VAC |
18 Amps |
No |
| TRC1800E-F |
Yes |
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Use the links below for addtional manual pages or for a complete manual or click on the Operation/Installation Manual PDF link above.
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Nimbus-HP - your choice for speed control of AC Motors, Fans and Pumps

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