--- product_id: 555165044 title: "DC Power Supply Variable, 30V 50A Bench Power Supply, high Power Adjustable Switching Power Supply with Encoder Adjustment knob, OCP Switch,KPS3050D(30V/50A)" brand: "gbhjj" price: "4731 zł" currency: PLN in_stock: true url: https://www.desertcart.pl/products/555165044-dc-power-supply-variable-30v-50a-bench-power-supply-high store_origin: PL region: Poland --- # 30V Power Output 50A Current Capacity 4-Digit Display DC Power Supply Variable, 30V 50A Bench Power Supply, high Power Adjustable Switching Power Supply with Encoder Adjustment knob, OCP Switch,KPS3050D(30V/50A) **Brand:** gbhjj **Price:** 4731 zł **Availability:** ✅ In Stock ## Summary > 🔌 Power Up Your Projects with Precision! ## Quick Answers - **What is this?** DC Power Supply Variable, 30V 50A Bench Power Supply, high Power Adjustable Switching Power Supply with Encoder Adjustment knob, OCP Switch,KPS3050D(30V/50A) by gbhjj - **How much does it cost?** 4731 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/555165044-dc-power-supply-variable-30v-50a-bench-power-supply-high) ## Best For - gbhjj enthusiasts ## Why This Product - Trusted gbhjj brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Built-in OVP, OCP, OPP, and OTP for ultimate protection. - • **Dynamic Display:** Stay informed with a clear 4-digit display for voltage and current. - • **Reliable Support:** Enjoy 24/7 technical support for peace of mind. - • **Precision Control:** Experience unmatched accuracy with the high-precision encoder knob. - • **Convenient Operation:** Easily toggle power output with a dedicated switch. ## Overview The GBHJJ DC Power Supply Variable is a high-performance bench power supply offering adjustable voltage up to 30V and current up to 50A. It features a precise encoder adjustment knob, a 4-digit display for easy monitoring, and comprehensive safety protections, making it an essential tool for professionals seeking reliability and accuracy in their work. ## Description This product is a programmable DC power supply with beautiful appearance, small size, high performance, powerful functions and simple operation. It is suitable for aerospace and defense, consumer electronics, computers and peripherals, communications, semiconductors, solar energy and electronic automobiles. test.The product can display voltage and current simultaneously. The output voltage and output current are adjusted by the encoder knob, which can be continuously adjusted from 0 to the rated value. It has the characteristics of high power, large current, fast response, fast load, etc., and has significant advantages such as transient response, low noise, and convenient use!The stability and ripple coefficient of the power supply are very good, and it has various protection circuits such as short circuit protection, overvoltage protection, overcurrent protection, and overcurrent protection. Temperature protection, etc., can work at full load for a long time, and is very popular among users.Application fields:platingProduct aging testProduction line testingCharging batteriesElectronic equipment testingLaboratory R&D testingschool teaching experimentCommunication power supplyProducts include:1 AC power cord1X Operation Manual2 copper terminal blocks ## Features - ★【High Precision Encoder Knob】Unlike common potentiometer knobs on the market, the desktop DC power supply has a precise encoder knob that does not jump randomly and remains stable over time. You can easily push the knob to toggle the individual numbers and set the desired voltage or current more accurately. - ★【High-power 4-digit display】DC power supply accuracy is stable and continuously adjustable. It can be easily adjusted between 0-30V and 0-20A. Constant voltage (CV) and constant current (CC) modes can be automatically switched and displayed with 4 digits. The internal use of original chips ensures stable and reliable performance. - ★【Output Switch】 The variable DC power supply is equipped with an output switch, which is favored by the majority of buyers. The output button prevents us from damaging the load by simply pressing the output switch button to turn on or off the power output and forgetting to turn off the output, thus improving the safety and convenience of our work. - ★【Safety Device】 Built-in OVP overvoltage protection, OCP (overcurrent protection), OPP (overload protection), OTP (overtemperature protection), with short circuit protection alarm function, the protection function is complete and reliable, ensuring employees to work safer and more efficiently. - ★【Our Service】: 1*power host, 1*output power cord, 1*input power cord and 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. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | GBHJJ | | Package Dimensions | 44.5 x 34 x 21.5 cm; 8 kg | | Manufacturer reference | DC Power Supply Variable | | Manufacturer | GBHJJ | | Color | KPS3050D(30V/50A) | | Item Weight | 8 Kilograms | ## Product Details - **Brand:** GBHJJ - **Compatible devices:** Personal Computer - **Output wattage:** 50 Watts - **Maximum input voltage:** 30 Volts - **Manufacturer:** GBHJJ ## Images ![DC Power Supply Variable, 30V 50A Bench Power Supply, high Power Adjustable Switching Power Supply with Encoder Adjustment knob, OCP Switch,KPS3050D(30V/50A) - Image 1](https://m.media-amazon.com/images/I/61djROhz95L.jpg) ## Available Options This product comes in different **Color** options. --- ## 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.pl/products/555165044-dc-power-supply-variable-30v-50a-bench-power-supply-high](https://www.desertcart.pl/products/555165044-dc-power-supply-variable-30v-50a-bench-power-supply-high) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-07*