KR680 – Automatic Voltage Regulator
The KR680 is a high-quality Automatic Voltage Regulator (AVR) engineered for brushless alternators to ensure stable voltage output and reliable generator performance. It provides fast response to load changes, precise voltage regulation, and robust protection against overvoltage and short circuits. With its compact, fully encapsulated design, the KR680 offers superior durability and long-term stability for industrial, marine, and commercial generator applications.

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, dust, and moisture

• Protection Features: Overvoltage, underfrequency, and short-circuit protection