--- product_id: 724211709 title: "Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440)" brand: "boartechs" price: "£74.91" currency: GBP in_stock: true category: "Boartechs" url: https://www.desertcart.co.uk/products/724211709-automatic-voltage-regulator-control-as440-avr-diesel-generator-automatic-voltage store_origin: GB region: United Kingdom --- # ±1.0% Voltage Regulation Smooth Potentiometer Adjustment Wide Operating Temp Range Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) **Brand:** boartechs **Price:** £74.91 **Availability:** ✅ In Stock ## Summary > ⚡ Power Perfected: Control Your Generator Like a Pro! ## Quick Answers - **What is this?** Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) by boartechs - **How much does it cost?** £74.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/724211709-automatic-voltage-regulator-control-as440-avr-diesel-generator-automatic-voltage) ## Best For - boartechs enthusiasts ## Why This Product - Trusted boartechs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Operates reliably across extreme temperatures with minimal thermal drift (0.03%/°C). - • **Smart Safety Features:** Integrated over-voltage and low-speed protections safeguard your generator’s longevity. - • **Effortless Fine-Tuning:** Smooth, damage-resistant potentiometer ensures precise voltage adjustments every time. - • **Precision Power Control:** Maintain stable voltage with ±1.0% regulation for flawless generator performance. - • **Compact & Durable Design:** Lightweight 0.35kg module with robust rubber casing built for long-term use. ## Overview The AS440 Automatic Voltage Regulator Control Module delivers high-precision voltage stabilization with ±1.0% regulation and rapid 20ms response time. Designed for durability, it operates smoothly across wide temperature ranges with minimal drift, featuring smart protections against over-voltage and low-speed conditions. Compact and robust, this module ensures your diesel generator runs efficiently and reliably, making it an essential upgrade for professional-grade power management. ## Description Generators.Technical specificationSENSING INPUTVoltage Jumper selectable100-130 Vac 1 phase or190-264 Vac 1 phaseFrequency 50-60 Hz nominalPOWER INPUTVoltage 100-264 V ac 1 phaseFrequency 50-60 Hz nominalOUTPUTVoltage 82 V d. C. @ 200 V a. C.Current continuous 4A (see note 1).Transient 7.5A for 10 secs.Resistance 15 ohms min(10 ohms min when input volts is less than 175 ac)REGULATION+/- 1.0% (see note 2)THERMAL DRIFT0.03% per deg. C change in AVR ambient (see note 3)AVR response: 20 msFiled current to 90%: 80 msMachine Volts to 97%: 300 msEXTERNAL VOLTAGE ADJUSTMENT+/-10% with 1 k ohm 1 watt trimmer (see note 4)Increasing resistance lowers voltage.UNDER FREQUENCY PROTECTIONSet point: 94 -98% Hz (see note 5)UNIT POWER DISSIPATION12 watts maximumBUILD UP VOLTAGE4 Volts @ AVR terminalsANALOGUE INPUTMaximum input: +/- 5 Vdc (see note 6)Sensitivity: 1V for 5% Generator Volts (adjustable)Input resistance 1k ohmQUADRATURE DROOP INPUT10 ohms burdenMax. Sensitivity: 0.07 A for 5% droop 0PFMax. Input: 0.33 AOVER EXCITATION PROTECTIONSet point 75 V dcTime delay 10-15 seconds (fixed)ENVIRONMENTALVibration: 20-100 Hz 50mm/sec100Hz -2kHz 3.3g==========Usage : SVCModel Number : AS440Current Type : ACOrigin : Mainland ChinaCertification : nonevoltage : 220vmaterial : rubberweight : 0.35kgsize : 15.5*10.5*5.5cm ## Features - High Precision, Wide Range Of Operating Temperature, Small Drift Stability. - The Potentiometer Adjustment Is Smooth And Not Easy To Damage. - With Over Voltage Function And Low Speed Function, And Control Of The Generator. - Automatic Voltage Regulator Control Moudle is made of high quality material which can use for a long time. ## Images ![Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) - Image 1](https://m.media-amazon.com/images/I/51Ya+vdqPML.jpg) ![Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) - Image 2](https://m.media-amazon.com/images/I/61TCC09IO4L.jpg) ![Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) - Image 3](https://m.media-amazon.com/images/I/61ZyRKYvQxL.jpg) ![Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) - Image 4](https://m.media-amazon.com/images/I/61askMVvFQL.jpg) ![Automatic Voltage Regulator Control AS440 AVR Diesel Generator Automatic Voltage Regulator Control Module Stabilizer alternator Replacements Accessories(Soft Glue AS440) - Image 5](https://m.media-amazon.com/images/I/61mchwXojTL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/724211709-automatic-voltage-regulator-control-as440-avr-diesel-generator-automatic-voltage](https://www.desertcart.co.uk/products/724211709-automatic-voltage-regulator-control-as440-avr-diesel-generator-automatic-voltage) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-24*