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AVR AS440 Automatic Voltage Regulator 4A for Generator, Genuine Replacement, Frequency Protection

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The AVR AS440 Automatic Voltage Regulator is the ultimate solution for precise and intelligent control of generator output, serving as a genuine, high-performance replacement that guarantees stable power supply and protects your electrical devices from voltage and frequency fluctuations. With support for continuous currents up to 4A and built-in under-frequency protection, the AS440 ensures safe and reliable operation across industrial, commercial, and residential environments. **Product Overview:** Crafted with advanced technology by a reputable brand in electrical control, the AVR AS440 is specifically designed for generators demanding accurate voltage regulation and rapid response to changing conditions. Easy to install and operate, it matches standard generator specifications, making it the perfect choice for maintenance or upgrades. **Technical Specifications:** - Sensing Input: Jumper selectable 100-130V AC (1 phase) or 190-264V AC (1 phase); Nominal Frequency: 50-60 Hz - Power Input: 100-264V AC (1 phase); Nominal Frequency: 50-60 Hz - Output: 82V DC, 200V AC - Continuous Current: 4A; Transient Current: 7.5A for 10 seconds - Resistance: Minimum 15 ohms (10 ohms if input voltage <175V AC) - Regulation: ±1.0% - Thermal Drift: 0.03% per °C ambient temperature change - Under Frequency Protection: Set point 94-98% Hz - Over Excitation Protection: Set point 75V DC; Time delay: 10-15 seconds (fixed) - Typical System Response: AVR response 20 ms; Field current to 90% in 80 ms; Machine voltage to 97% in 300 ms - External Voltage Adjustment: ±10% with 1k Ohm, 1W trimmer (increasing resistance lowers voltage) - Power Dissipation: Up to 12W - Analogue Input: Maximum ±5V DC; Sensitivity: 1V for 5% generator voltage (adjustable); Input resistance: 1k Ohm - Quadrature Droop Input: 10 Ohm burden; Max sensitivity: 0.07A for 5% droop, Max input: 0.33A - Environmental: Vibration 20-100 Hz at 50mm/sec; 100Hz-2kHz at 3.3g; Operating temperature: -40 to +70°C; Relative humidity: up to 95%; Storage temperature: -55 to +80°C **Key Features:** - Highly precise automatic voltage and frequency control - Protects electrical devices from fluctuations and over-excitation - Fast response to load and environmental changes - Genuine replacement, meeting standard generator specifications - Robust design for resistance to heat, humidity, and vibration - Simple installation and maintenance **Recommended Use Cases:** Ideal for factories, farms, hospitals, power stations, businesses, and commercial or residential buildings that rely on generator power to ensure uninterrupted energy supply. **Benefits:** - Extends the lifespan of generators and connected devices - Reduces risk of electrical failures and downtime - Delivers stable and safe power - Improves operational efficiency and energy consumption **Care Instructions:** For optimal performance, install the AVR AS440 by a qualified technician, regularly inspect all connections, and avoid exposure to excessive moisture or extreme temperatures. Clean the device from dust and ensure wires and terminals remain secure. Brand: Genuine Model: AVR AS440 Origin: Complies with global specifications Suitable environments: Factories, hospitals, businesses, farms, commercial and residential buildings

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Model: AVR AS440
Product Type: Automatic Voltage Regulator (AVR)
Brand: Original
Sensing Input: 100-130V AC single phase or 190-264V AC single phase / Nominal frequency 50-60Hz
Power Input: 100-264V AC single phase / Nominal frequency 50-60Hz
Output: 82V DC, 200V AC
Continuous Current: 4A
Transient Current: 7.5A for 10 seconds
Load Resistance: 15 ohms minimum (10 ohms if voltage is less than 175V AC)
Voltage Regulation: ±1.0%
Thermal Drift: 0.03% per °C change in ambient temperature
Under Frequency Protection: Set point 94-98% Hz
Over Excitation Protection: Set point 75V DC / Time delay 10-15 seconds
Typical System Response: AVR response 20ms, Field current to 90% in 80ms, Generator voltage to 97% in 300ms
External Voltage Adjustment: ±10% with 1kΩ 1W trimmer
Power Dissipation: 12W maximum
Analogue Input: Maximum input ±5V DC, Sensitivity 1V for 5% generator volts, Input resistance 1kΩ
Quadrature Droop Input: 10 ohms burden, Max sensitivity 0.07A for 5% droop, Max input 0.33A
Build Up Voltage: 4V at AVR terminals
Operating Environment: Vibration 20-100Hz (50mm/s), 100Hz-2kHz (3.3g), Operating temperature -40 to +70ºC, Relative humidity up to 95%, Storage temperature -55 to +80ºC
Country of Origin: As per global standards

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