Alternator Voltage Regulator with Sensor Less Protection Facility is fully PU potted in ABS plastic base plate and is ideal for three phase and single phase alternators. The Alternator Voltage Regulator is designed with over excitation field current protection. The Alternator Voltage Regulator is available with under frequency protection and over excitation field current protection. Alternator Voltage Regulator with Sensor Less Protection Facility is made using quality grade raw material and ensures ease of use.