--- product_id: 53079298 title: "Variac, 500VA Variable Voltage Transformer,AC Auto Transformer" brand: "yaeccc" price: "€ 228.63" currency: EUR in_stock: true reviews_count: 10 category: "Yaeccc" url: https://www.desertcart.at/products/53079298-variac-500va-variable-voltage-transformer-ac-auto-transformer store_origin: AT region: Austria --- # 500VA power capacity 0-130V adjustable output Over-voltage protection Variac, 500VA Variable Voltage Transformer,AC Auto Transformer **Brand:** yaeccc **Price:** € 228.63 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and protection! ## Quick Answers - **What is this?** Variac, 500VA Variable Voltage Transformer,AC Auto Transformer by yaeccc - **How much does it cost?** € 228.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/53079298-variac-500va-variable-voltage-transformer-ac-auto-transformer) ## Best For - yaeccc enthusiasts ## Why This Product - Trusted yaeccc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Copper Core:** High-quality copper coil ensures longevity and stable performance. - • **User-Friendly Design:** Lighted On/Off switch and output volt meter for effortless monitoring. - • **Built-in Safety First:** Over-voltage protection and a 5A fuse keep your devices secure. - • **Precision Voltage Control:** Seamlessly dial from 0 to 130V for tailored power needs. - • **Versatile Industrial & Home Use:** Perfect for coffee roasting, motor speed control, lab testing, and more. ## Overview The YaeCCC Variac 500VA Variable Voltage Transformer offers adjustable voltage output from 0 to 130V with a robust 5A current rating. Featuring over-voltage protection, a durable copper coil, and an easy-to-read volt meter, it’s engineered for both industrial and home applications including lab testing, motor control, and coffee roasting. Compact and reliable, it ensures efficient, distortion-free power conversion with user-friendly controls. ## Description Buy YaeCCC Variac, 500VA Variable Voltage Transformer,AC Auto Transformer | 5Amp Variac Transformer,110V Input 0-130V Output,Ideal for Household Industrial and Lab Voltage Testing: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: works, for the price its good. - the VU meter matches the dial labeling but nether of those match actual output voltage. the dial is labeled in increments of 13 volts and for every increment +1v or +2v is added to the actual voltage so at 13v dial setting I get 15v, at 26v dial setting I get 30v, etc. at 130v dial setting I get 148v output. output spikes -1.3v at max output (148v) and -0.6v at near min setting (2v) periodically (~2hz, smooth spike). aside from this spike voltage is +/- 0.1v for about 70% of the time, the other 30% being that spike happening. attached is a multi meter test for the dial sweep. dial was turned from min to max to min at a more or less constant rate a few times. voltage spike happens with my unit at around 25v and its significant. you can see it in the picture. the rest of the transition from min voltage to max is smooth. scale of the graph is 0v-160v mean is 80v. also attached is oscilloscope reading of the output at 2v. my scope is only rated for 10v max and im not going to push it with this unit. shows 60hz +/- 0.1hz with a periodic spike in hz every so often which makes it dip to sub 20hz. spike is super short (a few microsecond or less is my guess, didn't bother to try and catch it on the scope to measure it explicitly.) and happens less than once per second so no big deal. you can see that spike measured in the statistics frame on the oscilloscope image under the Min column, average column is still close to 60z so its not a significant spike. if you care about a spike that short you probably care about the waveform too - scope shows a pretty clean saw waveform, not sine wave. this aint guna be lab gear. all in all, for the price, its fine. its not supposed to be lab equipment and as long as you mind the actual output voltage it should work well. im pretty happy with it. UPDATE: been running 24/7 for 11 months, no issues at all. Review: They'll lower the noise levels of your fans - Works wonders with my big industrial fans. ## Features - - Enclosed, non-isolated, Adjustable transformer, with Output Volt Meter.On/Off Power Switch(Lighted),5A fuse & power cord. - - Over-voltage protection, the use of more security.Contact voltage transformer, wide voltage range (0-130V) - - Built-in copper coil, material quality, more secure and durable.High efficiency and with no waveform distortion. - - Suit for home coffee roasting,Motor Speed control,Label Printing Machine,EE Labs,Test for Railroad Switching, Power Supplies, Satellite,Equipment,Telecommunication Equipment. - Please note that most device have surge (when first turn on) much higher than operating amp rating. E.g, motor with 5 amp rating may have over 10 amp surge, and you will need 10 amp transformer. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076Y2XHRS | | Best Sellers Rank | #94,291 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #343 in Power Converters | | Brand | Yaeccc | | Brand Name | Yaeccc | | Current Rating | 10 A, 5 A | | Customer Reviews | 4.5 out of 5 stars 362 Reviews | | Item Dimensions D x W x H | 4.33"D x 5.51"W x 5.7"H | | Item Highlight | 5Amp Variac Transformer,110V Input 0-130V Output,Ideal for Household Industrial and Lab Voltage Testing | | Item Weight | 8.4 pounds | | Manufacturer | Yae First Trading Co.,Itd | | Maximum Frequency | 60 hertz | | Minimum Frequency | 60 hertz | | Model | 0.5KVA | | Mounting Type | Wall Mount | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | TEK-AB-0308 WI-0048 AB-0379 AB-0378 | | Power Source | Corded Electric | | Product Dimensions | 4.33"D x 5.51"W x 5.7"H | | UPC | 602989770891 | | Unit Count | 1 Count | ## Product Details - **Brand:** Yaeccc - **Current Rating:** 10 A, 5 A - **Mounting Type:** Wall Mount - **Power Source:** Corded Electric - **Product Dimensions:** 4.33"D x 5.51"W x 5.7"H ## Images ![Variac, 500VA Variable Voltage Transformer,AC Auto Transformer - Image 1](https://m.media-amazon.com/images/I/619aUaerb5L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ works, for the price its good. *by W***T on December 31, 2018* the VU meter matches the dial labeling but nether of those match actual output voltage. the dial is labeled in increments of 13 volts and for every increment +1v or +2v is added to the actual voltage so at 13v dial setting I get 15v, at 26v dial setting I get 30v, etc. at 130v dial setting I get 148v output. output spikes -1.3v at max output (148v) and -0.6v at near min setting (2v) periodically (~2hz, smooth spike). aside from this spike voltage is +/- 0.1v for about 70% of the time, the other 30% being that spike happening. attached is a multi meter test for the dial sweep. dial was turned from min to max to min at a more or less constant rate a few times. voltage spike happens with my unit at around 25v and its significant. you can see it in the picture. the rest of the transition from min voltage to max is smooth. scale of the graph is 0v-160v mean is 80v. also attached is oscilloscope reading of the output at 2v. my scope is only rated for 10v max and im not going to push it with this unit. shows 60hz +/- 0.1hz with a periodic spike in hz every so often which makes it dip to sub 20hz. spike is super short (a few microsecond or less is my guess, didn't bother to try and catch it on the scope to measure it explicitly.) and happens less than once per second so no big deal. you can see that spike measured in the statistics frame on the oscilloscope image under the Min column, average column is still close to 60z so its not a significant spike. if you care about a spike that short you probably care about the waveform too - scope shows a pretty clean saw waveform, not sine wave. this aint guna be lab gear. all in all, for the price, its fine. its not supposed to be lab equipment and as long as you mind the actual output voltage it should work well. im pretty happy with it. UPDATE: been running 24/7 for 11 months, no issues at all. ### ⭐⭐⭐⭐⭐ They'll lower the noise levels of your fans *by L***U on August 2, 2026* Works wonders with my big industrial fans. ### ⭐⭐⭐⭐⭐ For the electronics hobbyist *by N***O on April 19, 2026* Easily the best option when bench top supplies don't cut it. If you're at the point where it's impractical to keep buying larger power supplies, you need one of these. Frankly, they are just awesome. You get a massive range of voltages to play with, and best of all, it's AC! Seriously, this expands the range of devices you can power immensely. And not just Microwave Oven Transformers. But those do totally work 😉. The thing even has about half a Henry of inductance at full tilt, and does hum pretty good if you're pushing the rated power, but personally I consider this an audible saftey feature 🤷. Built pretty good, replaceable fuse slot is nice. Yeah, buy one imo. Makes the wall socket somewhat less scary, and that's pretty great ## Frequently Bought Together - YaeCCC Auto Voltage Transformer AC Variable Voltage Converter Transformer 110VAC Input, 0-130VAC (500W) - Xytronic ITR300 Jameco Valuepro Isolation Power Transformer, 120VAC, 300Va, 3.2" Width, 4.6" Length, 4.2" Height - WGGE WG-026 10 Pieces and 5 Colors Test Lead Set & Alligator Clips,20.5 inches / 22 AWG Copper Wire. The Clips soldered and Stamping to The Wires. (1 Pack) --- ## 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.at/products/53079298-variac-500va-variable-voltage-transformer-ac-auto-transformer](https://www.desertcart.at/products/53079298-variac-500va-variable-voltage-transformer-ac-auto-transformer) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-10-14*