--- product_id: 42999155 title: "Norstar DAVR-3000 3000 Watt 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage Transformer and Automatic Voltage Regulator Stabilizer" brand: "spark robotic" price: "€ 399.81" currency: EUR in_stock: true reviews_count: 8 category: "Spark Robotic" url: https://www.desertcart.hr/products/42999155-norstar-davr-3000-3000-watt-110-120-to-220-240 store_origin: HR region: Croatia --- # 3000W max load power Digital voltage display Dual circuit breaker protection Norstar DAVR-3000 3000 Watt 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage Transformer and Automatic Voltage Regulator Stabilizer **Brand:** spark robotic **Price:** € 399.81 **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, protected, and ahead of the curve with Norstar DAVR-3000! ## Quick Answers - **What is this?** Norstar DAVR-3000 3000 Watt 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage Transformer and Automatic Voltage Regulator Stabilizer by spark robotic - **How much does it cost?** € 399.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/42999155-norstar-davr-3000-3000-watt-110-120-to-220-240) ## Best For - spark robotic enthusiasts ## Why This Product - Trusted spark robotic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Double Defense Safety:** Dual circuit breakers and switches ensure unmatched protection against electrical faults. - • **Powerhouse Performance:** Handles up to 3000 watts for your critical electronics and refrigeration needs. - • **Smart Stability Engine:** Next-gen built-in CPU guarantees consistent voltage regulation and prevents damaging surges. - • **Crystal Clear Voltage Insight:** Digital meters provide instant, stable, and accurate voltage readings at a glance. - • **Universal Voltage Compatibility:** Seamlessly steps voltage up or down between 110/120V and 220/240V for global device support. ## Overview The Norstar DAVR-3000 is a robust 3000-watt step-up and step-down voltage transformer with an automatic voltage regulator designed for single-phase 50Hz applications. Featuring a digital display for precise voltage monitoring, dual circuit breakers for enhanced safety, and a next-generation CPU for stable voltage output, it’s ideal for safeguarding sensitive electronics and refrigeration appliances from power fluctuations. ## Description 3000 Watt Max Load Capacity. Great for use with electronics and refrigeration appliances. Norstar DAVR-3000 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage transformer and Automatic Voltage Regulator . …Single Phase. Input/Output frequency 50Hz. - Digital display meters are more accurate stable and easy to read the voltage status at a glance. - this unit comes with individual circuit breakers for both input and output voltage along with dual switches which ensures double protection. - This unit has a built-in new generation CPU which ensures consistency and stability to the AVR unit. Review: This thing is amazing - I was blowing out circuit boars on my AC unit (Split System) and it was due to overvoltage. My 120V power from the pole would go up to 140V periodically and blow the board. After 4 replacement boards I found this unit that has solved all my overvoltage issues. I plugged the AC into this and have not had an issue since June 11th 2021. We are in NC and this unit works hard to keep our Laboratory cool. Without this unit I would have already blown another circuit board. I'm very impressed as to how well it works. It keeps the power at a steady 110V. I'm sure that it would do the same for 220V. Review: Terrible product and false advertisement - First of all, this transformer will not give you 50hz as stated in the description. If you have a 230v device that requires 50hz frequency this thing will not work but it states it does. See my video. It also does not dispaly accurate voltage, always stays at 220v. Secondary, the unit came damaged, see my picture. It looks like everyone gets this this item banged up. Maybe they throw them off the roof to test durability. ## Features - Norstar DAVR-3000 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage transformer and Automatic Voltage Regulator - Digital display meters are more accurate stable and easy to read the voltage status at a glance. - This unit comes with individual circuti breakers for both input and output voltage along with dual swiches which ensures double protection - This unit has a built-in new generation CPU which ensures consistency and stability to the AVR unit - 3000 Watt Max Load Capacity. Great for electronics and refrigeration appliances. Single Phase. Input/Output frequency 50Hz. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07169S11T | | Best Sellers Rank | #421,059 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,830 in Power Converters | | Brand | spark robotic | | Brand Name | spark robotic | | Customer Reviews | 3.8 out of 5 stars 71 Reviews | | Item Weight | 29.3 Pounds | | Manufacturer | Norstar | | Maximum Frequency | 50 Hz | | Minimum Frequency | 50 Hz | | Model | FBA_DAVR3000 PRO | | Mounting Type | Wall Mount | | Number of Items | 1 | | Part Number | FBA_DAVR3000 PRO | | Power Source | Corded Electric | | Specification Met | ANSI, UL, cUL | | UPC | 759003319588 788679295322 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Norstar - **Item Weight:** 29.3 Pounds - **Mounting Type:** Wall Mount - **Power Source:** Corded Electric - **Specification Met:** ANSI, UL, cUL ## Images ![Norstar DAVR-3000 3000 Watt 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage Transformer and Automatic Voltage Regulator Stabilizer - Image 1](https://m.media-amazon.com/images/I/61zel30amJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This thing is amazing *by S***. on August 12, 2021* I was blowing out circuit boars on my AC unit (Split System) and it was due to overvoltage. My 120V power from the pole would go up to 140V periodically and blow the board. After 4 replacement boards I found this unit that has solved all my overvoltage issues. I plugged the AC into this and have not had an issue since June 11th 2021. We are in NC and this unit works hard to keep our Laboratory cool. Without this unit I would have already blown another circuit board. I'm very impressed as to how well it works. It keeps the power at a steady 110V. I'm sure that it would do the same for 220V. ### ⭐ Terrible product and false advertisement *by R***T on September 15, 2023* First of all, this transformer will not give you 50hz as stated in the description. If you have a 230v device that requires 50hz frequency this thing will not work but it states it does. See my video. It also does not dispaly accurate voltage, always stays at 220v. Secondary, the unit came damaged, see my picture. It looks like everyone gets this this item banged up. Maybe they throw them off the roof to test durability. ### ⭐⭐⭐⭐⭐ Great quality *by S***N on October 27, 2025* Daily use since 7 years and still lasting! Great quality! ## Frequently Bought Together - Norstar DAVR-3000 3000 Watt 110/120 to 220/240 or 220/240 to 110/120 Step UP and Down Voltage Transformer and Automatic Voltage Regulator Stabilizer - 220v to 110v Travel Voltage Converter: International Universal Voltage Converter US to Europe Power Strip Plug Transformer - 2000W Electric Hair Dryer Step Down Outlet Converters for European UK EU --- ## 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.hr/products/42999155-norstar-davr-3000-3000-watt-110-120-to-220-240](https://www.desertcart.hr/products/42999155-norstar-davr-3000-3000-watt-110-120-to-220-240) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-20*