--- product_id: 511793126 title: "DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A)" brand: "nankadf" price: "£234.97" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/511793126-dc-power-supply-variable-bench-power-supply-with-encoder-knob store_origin: GB region: United Kingdom --- # 4-digit display 0-30V, 0-20A OVP, OCP, OPP, OTP DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) **Brand:** nankadf **Price:** £234.97 **Availability:** ✅ In Stock ## Summary > ⚡ Power Up Your Projects with Precision! ## Quick Answers - **What is this?** DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) by nankadf - **How much does it cost?** £234.97 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/511793126-dc-power-supply-variable-bench-power-supply-with-encoder-knob) ## Best For - nankadf enthusiasts ## Why This Product - Trusted nankadf brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **24/7 Support:** Enjoy peace of mind with round-the-clock technical assistance at your fingertips. - • **Safety First:** Built-in multi-layer protection ensures your projects are safe and sound. - • **Precision Control:** Experience unmatched accuracy with a high-precision encoder knob for effortless adjustments. - • **User-Friendly Design:** Easily toggle output with a single button for enhanced convenience. - • **Versatile Power Output:** Switch seamlessly between constant voltage and current modes for all your needs. ## Overview The DC Power Supply Variable is a high-performance bench power supply that offers adjustable output from 0-30V and 0-20A. Featuring a precise encoder knob for accurate voltage and current settings, it includes essential safety features like over-voltage, over-current, overload, and over-temperature protection. With a user-friendly output switch and 24/7 technical support, this power supply is designed for both efficiency and safety in professional environments. ## Description Full description not available ## Features - 【High power 4-digit display】 The accuracy of DC power supply is stable and continuously adjustable. It can be easily adjusted between 0-30V and 0-20A. The constant voltage (C.V.) and constant current (C.C.) modes can be automatically converted, and displayed in 4 digits. The original chip is used inside, with stable and reliable performance. - 【High Precision Encoder Knob】 Unlike the common potentiometer knobs on the market, the benchtop DC power supply has a precise encoder knob that does not jump around randomly and is stable over time. You can easily press the knob to switch each digit and set the desired voltage or current more accurately. - 【Output Switch】 The variable DC power supply has an output switch favored by the majority of buyers. The output button prevents us from forgetting to turn off the output and damaging the load by simply pressing the output switch button to turn on or off the power output, thus improving the safety and convenience of our work. - 【Safety Device】Built-in OVP over-voltage protection, OCP (over-current protection), OPP (overload protection), OTP (over-temperature protection), with short-circuit protection alarm function, the protection function is perfect and reliable, protecting the staff to work more safely and efficiently. - 【Our service】: 1*power supply main unit, 1*output power cord, 1*input power cord and a user manual. We provide 7*24 hours technical support. If you have any questions about the product you received, please feel free to contact us and we will help you solve all your problems. ## Images ![DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) - Image 1](https://m.media-amazon.com/images/I/51Ak5WrStPL.jpg) ![DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) - Image 2](https://m.media-amazon.com/images/I/71IiaeUupML.jpg) ![DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) - Image 3](https://m.media-amazon.com/images/I/61pkJKR87zL.jpg) ![DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) - Image 4](https://m.media-amazon.com/images/I/61TWEoDik-L.jpg) ![DC Power Supply Variable, Bench Power Supply with Encoder knob, Adjustable Switching Power Supply with OCP Switch, Variable Power Supply with Output Enable/Disable Button (0-30V 0-20A) - Image 5](https://m.media-amazon.com/images/I/61JA1WME50L.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/511793126-dc-power-supply-variable-bench-power-supply-with-encoder-knob](https://www.desertcart.co.uk/products/511793126-dc-power-supply-variable-bench-power-supply-with-encoder-knob) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*