Feature 1Self Excited Function: The alternator with shunt excitation is self excited with an R230 automatic voltage regulator. 2Monitoring of Excitation Current: The regulator monitors the exciter excitation current as a function of the alternator output voltage. 3No Sustaining Short Circuit: Very simple design, alternators with parallel excitation have no sustaining short circuit capability. 4Perfect Replacement Parts: The automatic voltage regulator board is professionally designed for a perfect fit and finished for easy assembly. 5Durable Material: The R230 AVR automatic voltage regulator is made of high grade ABS material for stable and reliable use.Item Type:R230 AVR Automatic Voltage RegulatorMaterial: ABSVoltage Regulation: Approx. 0.5%Power Supply Range: 85-139 VPotentiometer for Voltage Setting: 1000/0.5W, Minimum Setting Range 5%Use: Voltage RegulatorGross Weight: Approx. 325g/11.5oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x R230 AVR Automatic Voltage Regulator1 x ManualNoteIn order to reduce the loss of customers, special tips! If you need to magnetize the generator set, please remove the AVR board and then magnetize it! In order to prevent the AVR board in the magnetization process, due to improper super work lead to fried tube burn board, are not eligible for warranty and return service! (Fried tube burn board: PCB circuit board large area fried burned bad, basically is not repairable, and repair is also very troublesome)