ELSRV1 – SINGLE-PHASE ELECTROMECHANICAL VOLTAGE STABILIZERS FROM 5KVA TO 50KVA – WIFI
SINGLE PHASE ELECTROMECHANICAL VOLTAGE STABILIZERS WIFI
The peculiarity of the ELSRV1 range is the shape, being created as a typically countertop product, it develops in width and depth but gradually in height, providing new installation possibilities. Due to this particularity, the product is intended for the production of specific batches on order.
We designed a new product that makes life easier for the user.
The ELSRV1 stabilizers supply a constant voltage, correcting voltage drops and increases that occur on the network or in the internal structure of the electrical system.
Our voltage regulators work automatically to regulate voltage without any user intervention.
Once the regulator is turned on, the mains voltage is continuously measured and the necessary raise/lower operations are performed automatically, providing the system with the constant voltage required for correct operation.
Servo regulators consist of a variator, a servomotor that controls the variator, a multimeter with electronic management that controls the motor and the booster transformer.
The motor’s high torque corrects quickly thanks to the DC servo motor and control system that can quickly respond to voltage changes.
When the regulation is completed, the servomotor is de-energized with an electronic braking circuit.
Electrical noise and transients do not disturb the regulation
You can safely power any area that needs regular electrical supply without any problems.
OPERATING TECHNOLOGY
Single-phase electromechanical voltage stabilizers use a toroidal transformer (variable transformer), a BUCK-BOOST transformer, and an electronic circuit that controls the rotation of the variable transformer, thus regulating the output voltage. With the control system, in a very fast response time, the high-torque regulation motor regulates small voltage changes very quickly. The servomotor is put out of service by the limit switches when it is outside its operating limits and by the control circuit when the output voltage is automatically adjusted to the set value. When the regulation is complete, the motor’s energy is cut with the help of an electronic opening circuit, operating in complete silence.
REGULATION SYSTEM
The system is equipped with a bypass switch that allows the load to be powered with mains voltage in the event of a malfunction or need. Using the setting buttons you can adjust the output voltage, precision range, regulation speed, and high-low voltage limits. It is then possible to adjust the maximum current control and the relative hysteresis time. All settings can be password protected. A display shows the input and output voltage, and the current delivered.
SINGLE-PHASE ELECTROMECHANICAL STABILIZERS – OPERATING PRINCIPLE

The new ELSRV1 stabilizers offer features such as:
- Free movement of PV electricity to the electricity grid
- Protection of the user from dangerous or harmful voltages.
- Protect you and your device from excessive currents.
- Pure sinus RMS tension regulation.
- Extended overload protection and instant protection.
- Balance AC voltage with extreme precision.
- It works smoothly on all loads from 0% to 100%.
- Manual switching to bypass mode without adjustment.
- Static, non-gradual, dynamically corrected output voltage.
- The standard regulation is ± 1.5% (227.7V -232.3V) stable when the input voltage is within the range
- WIFI remote control system as standard
| MODEL ELSRV1xxWF | 05 | 07 | 10 | 15 | 20 | 25 | 30 | 40 | 50 |
| KVA Power | 5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 |
| Power Factor |
1.0 |
||||||||
| INPUT | |||||||||
| Rated voltage | 230Vac 1ph + N | ||||||||
| Input voltage range | 172Vac ~ 265Vac | ||||||||
| Input Frequency | 45 ~ 66 Hz | ||||||||
| Max Input Current A | 29 | 43 | 58 | 87 | 116 | 145 | 174 | 232 | 290 |
| OUTPUT | |||||||||
| Output voltage | 230V (optional 220/240Vac to be selected when ordering) | ||||||||
| Output Accuracy | ± 1.5% | ||||||||
| Overload capacity | 100÷110% load – 30′, 110÷120% load – 10′, 120÷150% load – 1′, 150÷200% load – 10″ | ||||||||
| Speed adjustment | 90V / sec | ||||||||
| Output current A | 21 | 32 | 43 | 65 | 86 | 108 | 130 | 173 | 217 |
| PROTECTIONS | |||||||||
| Input Protection | Circuit breaker | NH fuse inside the structure | |||||||
| Output Protections | Low-high voltage | ||||||||
| Wifi system: high/low voltage, overcurrent, frequency protection | |||||||||
| By-Pass | Manual by-pass included | ||||||||
| OTHER DATA | |||||||||
| Communication | WIFI with Tuya app, Smartlife, compatible with Alexa, Google Assistant | ||||||||
| Colour | RAL7035 (other colours available on request) | ||||||||
| Yield | min. 98% | ||||||||
| Cooling | Side forced ventilation | ||||||||
| Protection class | IP21 (IP44 optional) | ||||||||
| Ambient Temp. Max. | -15° C ~ +40° C | ||||||||
| Altitude | Up to 1000 m a.s.l. without derating | ||||||||
| Relative humidity | < 95% (non-condensing) | ||||||||
| Sound pressure | < 50dB at 1m | ||||||||
| Version | benchtop | Tower with pivoting wheels | |||||||
| Dimensions WxDxH cm | 33x45x27 | 36x53x29 | 50x54x85 mm | ||||||
| Weight kg | 25 | 30 | 35 | 60 | 75 | 110 | 130 | 150 | 170 |


