DATAKOM AVR-12 Voltage Regulator is an electronic device which lets the alternator to produce fixed output voltage. It has open chassis, resin molded design and is intended to be mounted in the alternator’s terminal box. The output stage of the device is a Half Wave tyhristor output associated with a free wheeling diode. Basically the unit is compatible with all brushless type alternators. The AVR-12 has a special relay-less electronic circuit design. The unit does not include moving parts; therefore it is able to operate in highly vibrating environments. The AVR-12 includes a low frequency protection circuit. The easy connection scheme of the device allows fast and easy replacement. The device measures phase to neutral of the alternator and adjusts the DC voltage applied to the excitation winding in order to reach the desired voltage. The unit offers low-frequency protection feature. A frequency measuring circuit continually monitors the generator output and provides low-frequency protection of the excitation system, by reducing the output voltage proportionally with frequency below 45Hz. FEATURES: Half-Wave tyhristor output, 0-10 amps. output current, 0-115 volts output voltage, Relay-less circuit design, Low frequency protection, Built in voltage adjustment, Stability adjustment, Remote voltage adjustment feature, Easy connection scheme, Compatible with various types of alternators. TECHNICAL SPECIFICATIONS: Phases: single phase. Voltage Adjustment Range: 195-265 Volts min Frequency: 50/60Hz. Frequency Protection Adj. Range: 40-50Hz Output Voltage: 0-115 volts-DC at 230volts Output Current: 10A continuous, 20A for 5sec forcing Residual Voltage For Build Up: 5 volts minimum Regulation: +/- 2% typical. Power Output Stage: Half Wave tyhristor. Internal Fusing: 10A (fast acting fuse) Operating temp.: -10'C (14'F) to 60 ?C (140'F). Storage temp.: -20'C (-4'F) to 80 'C (176'F). Maximum humidity: 95% non-condensing. Dimensions: 125x68x35mm (L x W x H) Fixing centers: 115mm, 2xM6 Weight: 200grams. WE DO NOT SHIP THIS PRODUCT TO USA AND CANADA