Othonos 39, 17343
Agios Dimitrios Athens
09:00 - 17:00


Fax: +30 210 9969444


Energy Saving System 


ECOSTAB-ECOBUCK is a voltage stabilizer designed for Energy Saving and capable of improving Power Quality in all mains voltage conditions.

Ecostab-Ecobuck supplies the load with a stable voltage having a value less than or equal to the nominal mains voltage.

The voltage with which the load is powered can be set through a potentiometer between the nominal value and -8%.

Ecostab-Ecobuck is able to increase or reduce the voltage of the electrical distribution network in order to provide the loads with an optimal voltage, which can be set to a desired value and kept stable.

The desired value is linearly adjustable between a minimum value of 368V (-8%) and a maximum value of 400V (± 0%).

In the entire range of variation of the mains voltage allowed by the standard (± 10% of the nominal value of 400V) the load is always powered by the Ecostab-Ecobuck at the desired voltage, kept stable at ± 1%.

The variations of the mains voltage both in excess and in default are compensated and the supply voltage to the load is kept stable at the set value.



Technical Specifications

Product Brochure

General features

Range. Voltage optimisers are available in power range from 5 to 4000 KVA, in single-phase and three-phase version.

  • Single-phase 100-110-115-120-127-200-220-230-240-265-277V.
  • Single-phase with input 240V and output 230V.
  • Three-phase 208-220-230-240-380-400-415-440-460-480-500V.
  • Three-phase with input 415V and output 400V.
  • Frequency: 50 or 60 Hz.

Accuracy. Ecostab-Ecobuck voltage optimisers secure the true RMS voltage value with an accuracy of ±1% according to the presence of high harmonic distortions of the mains.

Regulation speed. An innovative control circuit combines an extremely fast regulation speed, from 11 to 33 ms/V according to the model, with the structural reliability of the electrodynamic system.

Overload capacity. This is a peculiarity of the Ecostab-Ecobuck electrodynamic regulation system. These devices can 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.

Efficiency. Efficiency up to 98.5% at full load.

Power factor and load variation insensitivity. The adopted operating principle ensures that the accuracy and the regulation speed features of Ecostab-Ecobuck voltage optimisers remain unaltered under any load condition (full load or no load, with inductive or capacitive loads).

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 0.1% in any operating condition.

Impedance. The installation of an Ecostab-Ecobuck voltage optimiser in a pre-existing system does not require a new calculation of the protections because the internal impedance of the optimiser, varying from 0.52 to 0.015 Ohm, does not significantly affect the line impedance.

Operating temperature. Ecostab-Ecobuck voltage optimisers are designed to work correctly at a maximum ambient temperature of 40°C in the most demanding conditions: continuous operation, full load and minimum input voltage. Models suitable for operation at temperatures higher than 40°C are manufactured on request.

Degree of protection. According to the ambient conditions, the safety requirements and the installation site, Ecostab-Ecobuck voltage optimisers are available in 4 versions with the following protection degree: IP00, IP21, IP54 INDOOR and IP54 OUTDOOR.

Reliability.  The MTBF exceeding 500,000 hours is the result of continuous improvement in technical aspects and production process.

Cooling system. Ecostab-Ecobuck voltage optimisers are cooled in different manner according to the type of casing and the ambient conditions by means of:

  • natural convection
  • fans
  • air conditioning

Installation. It is rather quick and easy. The voltage optimiser is installed after the energy counter and before the electric users.

Special versions. Ecostab-Ecobuck voltage optimisers can be equipped on demand with special fittings in separate cabinet, like e.g.: maintenance by-pass, thermal magnetic circuit breakers, insulating transformer, surge suppressors, lightning arresters, harmonic filters.

Remote control. Ecostab-Ecobuck voltage optimiers can be equipped with a special optional monitoring system POWER METER permitting the remote control via ETHERNET, INTERNET, GSM/GPRS. The following electric and physical parameters are detected: frequency, active power, reactive power, apparent power, distorting power, three-phase equivalent current, line current, power factor, active, reactive and inductive energy, harmonics, temperature, humidity, switch and contactor state. By using the POWER MANAGEMENT software installed on a non-dedicated PC, detected values can be managed and statistics can be obtained on a daily, weekly, monthly and yearly basis with various viewing, data processing, cost calculation and energy saving possibilities.

Compliance with standards. Ecostab-Ecobuck voltage optimisers comply with the following Directives:

  • Electro Magnetic Compatibility 2004/18/EC and following amendments.
  • Low Voltage Electrical Equipment 2006/95/EC and following amendments.

M2..S Single- phase 230V 50-60 Hz- IP21
Model Rated Power (KVA) Input Voltage Variation (±%) Output regulation range (%) Response Time (ms/V) Output accuracy (±%) Dimensions AxBxH (mm) Net weight (kg)
M208EJ8S 8 10 0 to -8 21 1 600x350x290 45
M210EJ12S 12 21 800x450x400 65
M211EJ20S 20 22 80
M212EJ25S 25 27 120


Y3..S Three- phase +N 400V 50/60 Hz -IP21
Model Rated Power (KVA) Input Voltage Variation (±%) Output regulation range (%) Response Time (ms/V) Output accuracy (±%) Dimensions AxBxH (mm) Net weight (kg)
Y308EJ20S 20 10 0 to -8 13 1 350x580x890 120
Y310EJ40S 40 12 450x800x1200 210
Y311EJ60S 60 16 240
Y312EJ80S 80 19 290
Y313AJ100S 100 17 650x650x1800 480
Y314AJ150S 150 27 1100x650x1800 620
Y316AJ200S 200 19 650
Y317AJ300S 300 22 750
Y318AJ400S 400 16 1100x900x1900 1100
Y319AJ600S 600 17 1100x1270x1800 1360
Y320AJ800S 800 18 1100x1270x1900 1770
Y320AJ1000S 1000 18 100x1270x1900 1850
Y322AJ1250S 1250 26 2130x1350x2150 2700
Y323AJ1600S 1600 18 3100
Y324AJ2000S 2000 17 3400
Y326AJ2300S 2300 18

3 cabinets


Y328AJ2500S 2500 24 5200
Y330AJ2800S 2800 26 5700
ECOBUCK M Single- phase 230V 50-60 Hz- IP21
Model Rated Power (KVA)

Input Voltage Variation

(± %)

Output regulation range (%) Response Time (ms/V) Output accuracy (±%) Dimensions AxBxH Net weight (kg)
Μ204EJB5S 5 +10% -8% 0 έως -8% 42 ±1% 450x560x430 45
M206EJB10S 10 42   65
Μ208EJB15S 15 44 450x560x430 80
M210EJB30S 30 54 120
ECOBUCK Y Three- phase 400 VAC +N 50/60Hz – IP21
Model Rated Power (KVA)

Input Voltage Variation

(± %)

Output regulation range(%) Time (ms/V) accuracy (±%) Dimensions AxBxH Net weight (kg)
Y304EJB15SS 15 +10 -8% 0 έως -8 26 ±1% 350x580x890 150
Y308EJB30SS 30 24   210
Y306EJB35SS 45 26 450x800x1200 240
Y310EJB80SS 80 24   290
Y311EJB120SS 100 32 650x650x1800 480
Y312EJB160SS 150 40 1100x650x1800 560
Y313AJB200SS 200 34   630
Y314AJB300SS 300 54   780
Y316AJB400SS 400 38 1100x900x1900 1100
Y317AJB600SS 600 44   1360
Y318AJB800SS 800 32 1100x1300x1900 1770
Y319AJB1000SS 1000 34 1100x1300x1900 1850
Y319AJB1250SS 1250 34 1500x1350x2150 2700
Y320AJB1600SS 1600 36 2150x1350x2150 3100
Y320AJB2000SS 2000 36 2150x1350x2150 3400
Y322AJB2500SS 2500 52

3 cabinets


Y323AJB3200SS 3200 36   5200
Y324AJB4000SS 4000 34   6000






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