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  • Save up to 40% of energy
  • Offers automatic voltage stabilisation, which guarantees certain savings and still delivers stabilised voltage.
  • Significant savings for applications: Asynchronous motors, filament/fluorescent and discharge lamps, and production lines
  • Secure the true RMS voltage value with an accuracy ranging from ±0.5% to ±1.5%.
  • Extremely fast regulation speed from 11 to 33 ms/V
  • Withstand overloads up to ten times the rated power for ten milliseconds, five times the rated power for six seconds or twice the rated power for one minute without damage.
  • Power factor and load variation insensitivity: Ensures that the accuracy and regulation speed features of the optimisers remain unaltered under any load condition
  • Frequency variation insensitivity: The control circuit works correctly also with mains frequency variations up to ±5%.
  • Harmonic distortions: The high quality and correct use of materials ensure that the harmonic distortion is always maintained within 0.2% in any operating condition
  • Designed to work correctly at a maximum ambient temperature of 40°C in the most demanding conditions. Models suitable for operation at temperatures higher than 40°C are manufactured on request


APS automatic voltage optimisers are one of the solutions offered by new technologies to users and supply an operating voltage that minimises consumption without impairing performance or reducing reliability. They allow businesses to obtain a significant saving of energy, extend the working life of electric equipment, and secure a significant reduction of carbon dioxide emissions

Standard single-phase models can deliver a variable voltage from 230V to 207V with input voltage comprised in the 207-253V range.

Standard three-phase models can deliver a variable voltage from 360/270V to 400/230V with input voltage comprised between 360/207V and 440/253V.

Models capable of broader input voltage variations may be built on demand. These may be needed because voltage may sometimes exceed the 10% tolerance specified in the supply contract.

Load capability from 15KAV to 3000kVA meets a vast range of load requirements.


APS Voltage Optimiser

Model Single-phase Three-phase
Power Range 100 – 110 – 115 – 120 – 127 – 200 – 220 – 230 – 240 – 265 – 277V 208 – 220 – 230 – 240 – 380 – 400 – 415 – 440 –460 – 480 – 500V
Input Voltage 240V
Frequency 50/60Hz
Output Voltage 230V
Frequency 50/60 Hz
Accuracy ±0.5% to ±1.5%
Regulation Speed 11 – 33 ms/V
Overload Capacity Ten times the rated power for 10 milliseconds; five times the rated power for 6 seconds; twice the rated power for 1 minute
Efficiency 96% - 98% at full load
Frequency Variation Insensitivity ±5%
Harmonic distortions ±0.2%
Impedance 0.52 – 0.015 Ohm
Operating Temperature 0° ̴40°
Degree of Protection IP00 / IP21 / IP54 INDOOR / IP54 OUTDOOR
Cooling System Natural convection, fans, air conditioning
Standard Fittings Digital network analyser / energy meter, pilot lamps, potentiometer; alarm indication and dry contacts for connection to an external device for protection against; overload, over/under voltage, phase failure/reversed phase sequence
Special Versions Can be equipped on demand with special fittings in separate cabinet. E.g. maintenance by-pass thermal magnetic circuit breakers, insulating transformer, surge suppressors, lightning arresters, harmonic filters
Remote Control (Optional) Ethernet, Internet, GSM / GPRS
Compliance with Standards 2004/18/EC and 2006/95/EC

Product PDF

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