AS440 Stamford AVR – Automatic Voltage Regulator

OverviewTheStamford AS440 Automatic Voltage Regulator (AVR)is a precision-engineered voltage control solution designed specifically for Stamford alternators, including the popular UC224 and UC274 generator heads manufactured by Cummins Generator Technologies. As a critical component in generator systems, the AS440 AVR continuously monitors and regulates output voltage to ensure stable, reliable power delivery under varying load conditions. This self-excited regulation system protects sensitive electrical equipment from voltage fluctuations, brownouts, and power surges while maintaining optimal generator performance. Whether you're operating standby power systems, prime power applications, or industrial generator sets, the AS440 provides the voltage stability essential for protecting valuable equipment and ensuring uninterrupted power supply.Engineered with advanced power and voltage sensing circuitry, the Stamford AS440 AVR represents decades of refinement in automatic voltage regulation technology. This genuine OEM component (part number E000-24403/1P) features robust construction designed to withstand harsh operating environments while delivering precise voltage regulation. The AS440 includes optional paralleling capabilities that allow multiple generators to operate in synchronized configurations, making it ideal for applications requiring redundant power systems or increased capacity. Unlike some AVR models, the AS440 cannot be used in conjunction with Electronic Backplate Systems (EBS) – for those applications requiring EBS compatibility, the Stamford AS480 AVR is recommended. With proven reliability across countless installations worldwide, the AS440 continues to be the standard choice for Stamford generator owners who demand consistent performance and long-term durability from their voltage regulation systems.Key SpecificationsSpecificationValueModel NumberAS440Part NumberE000-24403/1PVoltage Regulation Accuracy±0.5% steady state, ±1% transientInput Voltage R