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Enersavers™ Controller
 The Enersavers™ Controller soft start motor controller delivers proven energy savings for companies running AC induction motors. It is a new generation of motor controllers, that not only manages energy usage, but also incorporates a true ramp-type soft start reducing inrush current up to 70%. The Enersavers™ Controller reduces both contactor wear and mechanical breakdowns, and extends the life of the motor.
The Enersavers™ Controller is available in both single-phase and three-phase, in sizes up to 250 horsepower to accommodate many motor applications.
The Enersavers™ Controller monitors the AC induction motor so it functions at its optimum efficiency. It constantly senses the workload of the motor. When the actual workload of the motor is lower than the rated load, the sensing circuits reduce the power (voltage and current) supplied to the motor to the exact level it requires.
The Enersavers™ Controller family supports a range of configurations to best fit your needs. All configurations below are based on a 480 V rating.
| Platform |
1 |
2 |
3 |
Max. Horsepower
Max. Amperage
NEMA Type Enclosure
Manual Bypass Switch |
Up to 25
34
1, 4/12
Yes |
Up to 50
70
1, 4/12
Yes |
Up to 100
130
1, 4/12
Yes |
|
SPECIFICATIONS:
| AC Voltage |
208, 380, 460 and 575 VAC (50 or 60 Hz) 380, 3-Phase |
| Horsepower |
5-400hp (based on 380/415 Volts) |
| Load Type |
Three-phase AC Induction Motors |
| Output Stage |
Six SCR's Full Wave In-line |
| Environmental Considerations |
Ambient Temperature Operating Range: 0° to 40° C
95% Non-condensing Humidit
Altitude - 1,000 m |
| SCR Peak Inverse |
Line Voltage
Repetitive Peak Off-state and Repetitive
Peak Reverse Voltages
380/415 V
1200 V
|
| Full Load Current |
2-477 Amps |
| Transient Voltage Suppression |
Dual (per phase) Metal Oxide Varistors |
| RC Snubber |
Snubber networks in each phase prevent false firing due to dv/dt |
| Hard Firing Gate Pulse |
High potential gate pulse with rapid rise time prevents SCR damage due to di/dt |
| Wiring |
Straight through configuration. No control wiring necessary |
| Mounting |
Units may be wall mounted one inch apart with heatsink fins vertical |
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Enersavers™ Controller:
- Typical energy savings ranging from 15-38%
- Incorporates a soft start, solid state motor controller reducing inrush
current up to 70%
- Eliminates contactor wear
- Indirectly reduces pollutant emissions
- Proven Technology - validated by major companies, universities, and national laboratories
- Easy to install, reliable and maintenance free
Applications :
- Elevators
- Escalators
- Granulators
- Pump Jacks
- Conveyors
- Industrial Equipment
- Injection molding
- Machine tools
- Stamping presses
- Routers
- Saws
- Mixers
- Reciprocal compressors
Certifications :
- Conforming to UL 508 Industrial Control Equipment
- CSA B44.1 (ASME A17.5) Elevator and Escalator Equipment
- CSA C22.2 No. 14-95 Industrial Control Equipment
- CE Mark for Low Voltage Directive and Electromagnetic Compatibility Directive (tested to EN55011 and EN61000)
Testing :
- Oak Ridge National Laboratory, John Kueck, R.H. Staunton
- Oregon State University, Dr. Alan Wallace
Case study for Escalator, Otis Elevator and Escalator of Honolulu International Airport.
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