UST EcoVolt™ Automatic Voltage Optimizer and Regulator

The UST EcoVolt™ automatic voltage optimizer and voltage regulator offers commercial and industrial enterprises of any size an affordable solution for protecting equipment and processes from damaging electrical events.

EcoVolt™ is the first voltage optimization and voltage regulation solution built on proven AVR technology. A breakthrough in affordable engineering, EcoVolt makes it possible for commercial customers to do what their utilities can’t … or won’t.

What EcoVolt Offers

  • Full protection for critical equipment from damaging electrical events
  • Extended life of motors, lights and other voltage-dependent equipment
  • Voltage standardization and optimization, even in regions of the world where utility power is poor

The EcoVolt is designed to monitor incoming voltage, correct three-phase unbalance, protect against electrical events and optimize voltage to match the demand of the load, exactly, regardless of location, load or line condition. When combined with complete protection from damaging sags, swells and other electrical events, EcoVolt sets a new standard for perfect power.

60Hz / 600V*

KVAPart #Vac Input (wye)Vac Output (wye)Enclosure
20OPT-0020-600Y-332600575S28
30OPT-0030-600Y-332600575S28
50OPT-0050-600Y-332600575S28
75OPT-0075-600Y-332600575S28
100OPT-0100-600Y-332600575S36
125OPT-0125-600Y-332600575S36
150OPT-0150-600Y-332600575S44
200OPT-0200-600Y-332600575S44
300OPT-0300-600Y-332600575S52
500OPT-0500-600Y-332600575S52

60Hz / 480V*

KVAPart #Vac Input (wye)Vac Output (wye)Enclosure
20OPT-0020-480Y-266480460S28
30OPT-0030-480Y-266480460S28
50OPT-0050-480Y-266480460S28
75OPT-0075-480Y-266480460S28
100OPT-0100-480Y-266480460S36
125OPT-0125-480Y-266480460S36
150OPT-0150-480Y-266480460S44
200OPT-0200-480Y-266480460S44
300OPT-0300-480Y-266480460S52
500OPT-0500-480Y-266480460S52

50Hz / 230V*

KVAPart #Vac Input (wye)Vac Output (wye)Enclosure
20OPT-0020-230Y-124-5230215S28
30OPT-0030-230Y-124-5230215S28
50OPT-0050-230Y-124-5230215S28
75OPT-0075-230Y-124-5230215S28
100OPT-0100-230Y-124-5230215S36
125OPT-0125-230Y-124-5230215S36
150OPT-0150-230Y-124-5230215S44
200OPT-0200-230Y-124-5230215S44
300OPT-0300-230Y-124-5230215S52
500OPT-0500-230Y-124-5230215S52

*Custom voltages and sizes available upon request.

Electrical Specifications
Electrical Rating20 through 500 kVA
Nominal Voltage480V and 600V for 60 HZ units
230V for 50Hz units
Input Voltage Range+/- 10% of nominal input rated voltage
Output Voltage Range+/- 1.5% of nominal output voltage
Response Time1 cycle
Correction Time2-3 cycles
TechnologyEnhanced voltage regulation through microprocessor-controlled design strategy
Tap SwitchingNot dependent on determining load current zero crossing
Operating Frequency+/- 3% of nominal
Efficiency99% typical
CoolingNatural convection through a NEMA-1 ventilated enclosure
Overload1,000% for 1 second, 200% of rated load for 1 minute

Enclosure
H (in/cm)H (in/cm)H (in/cm)
S280.3944954128440428/7126/66
S3646/11736/9128/71
S4465/16544/11233/84
S5265/16552/13240/102

Environmental Specifications
Audible NoiseLess than 65dB at 1 meter
Ambient Temperature0˚ to 40˚ operating
Operating Altitue3,300' without derating
Humidity 0-95% non-condensing