--- product_id: 400014310 title: "- 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch" brand: "var tech" price: "€ 292.30" currency: EUR in_stock: true reviews_count: 8 category: "Var Tech" url: https://www.desertcart.at/products/400014310-3005-b-dc-power-supply-variable-30v-5a-transformer-based store_origin: AT region: Austria --- # 30V variable output 5A max current Intelligent cooling & protection - 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch **Brand:** var tech **Price:** € 292.30 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with precision and confidence — don’t get left in the dark! ## Quick Answers - **What is this?** - 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch by var tech - **How much does it cost?** € 292.30 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/400014310-3005-b-dc-power-supply-variable-30v-5a-transformer-based) ## Best For - var tech enthusiasts ## Why This Product - Trusted var tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Stay Cool Under Pressure:** Advanced transformer-based design with intelligent cooling and overheating protection - • **Seamless Power Management:** Output On/Off switch lets you pause output without cutting mains power - • **Precision at Your Fingertips:** Coarse and fine voltage controls for exact tuning every time - • **Built for Industrial Strength:** Robust overload and short circuit protection ensures reliability in demanding environments - • **Visual Clarity, Instant Feedback:** Multicolor 4-digit LED twin meters for real-time voltage and current monitoring ## Overview The VAR TECH 3005 B is a transformer-based DC power supply delivering variable 0-30V and up to 5A current with fine and coarse voltage controls. It features a smart cooling system, overload and short circuit protection, and a vibrant multicolor LED display for precise monitoring. Designed for industrial-grade reliability, it includes an output on/off switch allowing voltage adjustments without disconnecting mains power. ## Description Product Description From the manufacturer V A R TECH was founded in 2002 with the Intention of introducing Superior quality and Reliable Electronic Test and Measuring Instruments as well as Electronic repair and Production tools to the Indian Market. Trusted by thousands of Engineers and Technicians in India. V A R TECH has become the most trusted Indian Brand for the Quality, Reliability and Economy offered by our products. Our Electronic T.M.I & Electronic Repair and Production Tools are built with the best Industrial Grade Components which promises to deliver the Best In Class Performance and Accuracy. India's Highest quality Industrial Grade Electronic T.M.I & Electronic Repair & Production Tools Our Company has been successful in delivering our promise which is to provide our customers Superior Quality and Reliable Industrial Grade products and Reasonable prices and we promise to deliver the same in the future. The company is supported by a technical person having more than 30 years experience in this field and a dedicated Technical team to provide the best technical support. India's Top Quality D.C. Power Supplies & other products V A R TECH offers a wide range of D.C. Power Supplies ranging from 15 Volts to 100 Volts and 2 Amperes to 30 Amperes Outputs. All of our Power supplies are made of Industrial Grade components of the highest standards. Trusted by thousands of Engineers and Technicians for the superior Quality, Reliability and Accuracy offered by our products. 30 Years Of Excellence in T.M.I, Electronic Repair & Production tools. All our products are designed based on the requirements and Conditions our Customers & Market. With the Inputs from our Industrial customers, Technicians & Engineers we produce the most appropriate tools for the intended use. 30V~150V & 2A~40A Power supplies in stock. 30V~1000V and 2A~1000A Made to order Power supplies V A R TECH has the widest Range of D.C. Regulated Power Supplies in India. Review: Good build quality - Don’t expect the probes, also the ammeter only works when there is load don’t get confused Review: Very Useful - Good to buy, very useful product ## Features - 0 to 30V 0 to 5A variable power supply linear with coarse and fine controls and output on off switch with voltage live control - Transformer based with intelligent cooling system & overheating protection - Multicolour display with 2 led meters, 4 digits each - Industrial grade with overload protection and short circuit protection - Users can pause the output and vary the voltage without turning off the mains - For service and after sales support please feel free to contact us. Our service team will provide all the necessary assistance immediately. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09QM43LBL | | Best Sellers Rank | #11,403 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #156 in Power Supplies (Computers & Accessories) | | Brand | VAR TECH | | Brand Name | VAR TECH | | Compatible Devices | Personal Computer | | Connector Type | ATX | | Connector Type Used on Cable | ATX | | Cooling Method | Water | | Country of Origin | China | | Current Rating | 5 Amps | | Customer Reviews | 4.4 out of 5 stars 64 Reviews | | Form Factor | ATX | | Importer Contact Information | V A R TECH | | Item Dimensions | 27 x 10 x 15 Centimeters | | Item Weight | 4.75 Kilograms | | Manufacturer | V A R TECH, www.var-tech.com | | Manufacturer Contact Information | www.var-tech.com | | Maximum Input Voltage | 230 Volts (AC) | | Model Name | 3005 B | | Model Number | 3005 B | | Number of Fans | 2 | | Output Wattage | 150 Watts | | Packer Contact Information | V A R TECH | | System Bus Connector Type | ATX | | Unit Count | 1 Count | | Warranty Description | 1 Year warranty against manufacturing defects | | Wattage | 150 Watts | ## Product Details - **Brand:** VAR TECH - **Compatible Devices:** Personal Computer - **Connector Type:** ATX - **Model Name:** 3005 B - **Output Wattage:** 360 Watts ## Images ![- 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - Image 1](https://m.media-amazon.com/images/I/71aNHABYU0L.jpg) ![- 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - Image 2](https://m.media-amazon.com/images/I/71K-6TuaQ4L.jpg) ![- 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - Image 3](https://m.media-amazon.com/images/I/71-11mBtDNL.jpg) ![- 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - Image 4](https://m.media-amazon.com/images/I/71gnGttlS0L.jpg) ![- 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - Image 5](https://m.media-amazon.com/images/I/71p4rSQrA-L.jpg) ## Questions & Answers **Q: Please show the back side of the product in the image. So that we ( buyers ) can check power connector type / back cooling fan /and 110V,220V switch** A: Thanks for your suggestion. We will upload the rear panel image A.S.A.P. Please check the ‘Attachment’ & the following is F.Y.I. :- The Power Connector is a regular 3 Pin (Computer type) Connector. The Colling Fan sits inside the unit & only the Air Vents are cut into the rear panel. To avoid problems (& burn outs) due to mistakes (in our country) we have removed the 110/220V switch itself from the rear panel. However if you want, we can wire it out permanently for 110V & provide you. If you insist we can also provide a switch for this at additional cost. **Q: What is the warranty of this power supply** A: 1 year warranty against manufacturing defects. V A R TECH has a service center with engineers for after sales support throughout the life of the product. **Q: Can I have data on voltage/ampere storage?** A: This is a regular power supply. Whatever you intend to do, you can do it using a Programmable Power Supply or any Power Supply with a PC Interface. **Q: Does it support both 110V and 220V input voltages?** A: There is no 110/220V switch. But we will check Tomorrow physically if it is possible to wire it up for you & let you know. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good build quality *by S***. on 25 January 2025* Don’t expect the probes, also the ammeter only works when there is load don’t get confused ### ⭐⭐⭐⭐ Very Useful *by M***N on 19 July 2024* Good to buy, very useful product ### ⭐⭐⭐⭐⭐ Using Vartech rps for our testing facility performance is top notch *by A***D on 16 March 2026* Initially we had purchased 2 units in 2024 and we are using them continuously for all our projects. We recently purchased another unit and the performance has been the same. Always dependable. Old unit was sent for service and they returned the unit in 3-4 days after repair. Overall very happy with the product and support. ## Frequently Bought Together - VAR TECH 3005 B DC Power Supply Variable 30V 5A Transformer Based with Output On/Off Switch - e4u Quality Standard 4mm Banana Plug To 45mm Alligator/Crocodile Clip Red Black Test Probes Pair - 0.5 MTR - Generic PZIN14013619 Imported 10 Pieces 50cm Double Ended Crocodile Clips Cable Alligator Clips Wire Testing --- ## 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/400014310-3005-b-dc-power-supply-variable-30v-5a-transformer-based](https://www.desertcart.at/products/400014310-3005-b-dc-power-supply-variable-30v-5a-transformer-based) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-06-06*