AVR R120 Automatic Voltage Regulator for Diesel Generator

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Availability: 20 in stock

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Diesel Engine Set Voltage Regulation AVR R120 is a half-wave phase controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the AVR circuitry includes under speed and sensing loss protection to ensure safe, reliable control of the generator. Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR.


Sensing/Power inputVoltage120 (90-140VAC)
Frequency50/60 Hz jumper selectable
OutputVoltageMax 100VDC at 207VAC input
CurrentContinuous 8A Intermittent 10A within 10 seconds
Voltage Regulation< +/-1% (with 4% engine governing)

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1 review for AVR R120 Automatic Voltage Regulator for Diesel Generator

    November 6, 2021
    The AVR R120 generator set ATS switch controller has excellent performance, excellent control stability and reliability, which can ensure my home or industrial equipment get sufficient power supply.
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