Original Kutai ADVR-440 4A Hybrid Analog-Digital AVR
$315.00
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Description
The Kutai ADVR-440 is a 4 Amp Universal Hybrid Analog-Digital Voltage Regulator designed as a direct, drop-in replacement for the Stamford AS440. It is engineered for brushless generators and is compatible with Shunt excitation systems.
While maintaining the same footprint and wiring configuration as the original AS440, the ADVR-440 features Kutai’s advanced hybrid technology. This provides better voltage thermal stability and more precise digital protection against under-frequency and over-excitation, making it an ideal upgrade for Stamford HC, UC, and P series generators.
Details
SPECIFICATION INSTALLATION AND ADJUSTMENTS
Technical Specifications
| Sensing & Power Input | 100 – 264 VAC, 1 Phase 2 Wire |
|---|---|
| Excitation Output | Max. 82 VDC @ 200 VAC Input; Continuous 4A, Intermittent 7.5A for 10s |
| Voltage Regulation | < ± 1.0% (with 4% engine governing) |
| External Volts Adj. | ± 10% with 1K ohm 1 watt trimmer |
| Thermal Drift | 0.03% per °C change in AVR ambient |
Installation & Adjustments
- VOLT: Adjusts the generator output voltage level.
- STAB: Fine-tunes the stability to prevent voltage oscillation.
- UFRO: Under-frequency roll-off adjustment (DIP Switch for 50/60 Hz).
- DROOP: Controls voltage droop for parallel operation (when used with CT).
- TRIM: Optimizes the input from external equipment (e.g., PFC).
Key Features
Why Choose Kutai ADVR-440?
- Form-Fit Replacement: Matches the mounting dimensions of the original Stamford AS440.
- Enhanced Reliability: Fully encapsulated for protection against salt, moisture, and high vibration.
- Digital Intelligence: Improved Under-Frequency (UFRO) protection with LED indicator.
- Fast Response: Advanced circuitry for rapid recovery during large block loads.
- Parallel Capable: Built-in droop adjustment for multi-generator synchronization.
Compatibility: Replacement for Stamford A044W409, 250-83000, and AS440 series.
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