Stamford AVR AS540 – Automatic Voltage Regulator
The AS540 is a reliable and efficient Automatic Voltage Regulator (AVR) designed specifically for Stamford brushless alternators. It ensures stable voltage output, smooth response to load variations, and excellent performance across a wide range of applications. Built with high-quality solid-state components and a fully encapsulated design, the AS540 offers superior protection against vibration, moisture, and dust, ensuring long service life and dependable operation.

Key Specifications:

• Voltage Sensing: 190–264V AC (single phase)

• Frequency Range: 15–100 Hz

• Excitation Voltage: Max 63V DC @ 4A continuous (7A for 10s)

• Regulation Accuracy: ±1.0%

• Operating Temperature: –40°C to +70°C

• Build Type: Fully encapsulated, resistant to vibration and environmental stress

• Compatibility: Designed for Stamford alternators and compatible generator models