AVR SX440 Automatic Voltage Regulator with Soft Shell — for Stamford Generators

📊 Product Details (Essential Specs)

• Product: Automatic Voltage Regulator (AVR)

• Model: SX440 (with Soft Shell)

• Compatibility: Designed for use with Stamford brushless alternators (verify model fit before ordering)

• Input Sensing Voltage: 190–264 VAC (single/dual phase sensing)

• Output/Excitation Current: Continuous ~4 A (short-term boost capability)

• Frequency: 50 / 60 Hz compatible

• Voltage Regulation Accuracy: Typically ±1% under steady load

• Protection Features: Over-excitation protection, short-circuit and thermal safeguard (model dependent)

• Adjustments / Controls: Built-in potentiometers for Voltage, Stability, Droop, and Sensitivity

• Housing: Soft shell / rubberized protective cover — reduces vibration damage and eases handling

• Mounting: Compact footprint, surface-mountable for straightforward replacement

• Condition: New — China manufactured / aftermarket replacement (OEM alternatives available)

💡 Key Benefits & Features

• Stable voltage output under varying loads — protects sensitive equipment.

• Soft-shell protection reduces mechanical shock, dust ingress and improves durability.

• Easy setup & tuning via accessible potentiometers — fast field replacement.

• Cost-effective alternative to OEM AVRs while maintaining reliable performance.

• Suitable for mixed applications: standby generators, continuous power sets, commercial & industrial installations.

✅ Applications

• Stamford brushless alternator repairs & rebuilds

• Diesel generator maintenance and retrofits

• Industrial power houses, commercial buildings, residential standby sets

• Rental and service fleets needing quick AVR replacements