Adjustable DC Bench Power Supply 30V 5A Variable Voltage Regulator
Adjustable DC Bench Power Supply 30V 5A Variable Voltage Regulator
Adjustable DC Bench Power Supply — 30V / 5A Variable Voltage & Current Regulator
Take full control of your electronics projects with this professional-grade adjustable DC bench power supply. Delivering a continuously variable output of 0–30V / 0–5A, it's the go-to workbench tool for hobbyists, engineers, and DIY electronics enthusiasts who demand stable, accurate, and safe power delivery every time.
Made in Mainland China.
Why Choose This Bench Power Supply?
- Built to Last: Constructed from high-quality ABS with a scratch-resistant, rust-resistant spray-painted finish that keeps the unit looking great and performing reliably through years of use.
- Comprehensive Safety Features: Short-circuit protection, over-temperature protection, overload protection, overvoltage protection, a built-in fuse, and anti-reverse connection all work together to safeguard your devices and your supply at all times.
- High Accuracy Readings: A bright 3-digit LED display provides voltage precision of ±1% + 1 digit and current precision of ±1% + 2 digits — so you always know exactly what's going to your circuit.
- Dual C.C. / C.V. Auto-Switching: Seamlessly switches between Constant Current (C.C.) and Constant Voltage (C.V.) modes automatically as load conditions change, ensuring consistent, uninterrupted output.
- Energy Efficient: Achieves an impressive efficiency ratio of over 85%, reducing wasted energy and keeping operating costs low.
- Intelligent Cooling Fan: The built-in fan activates automatically when internal temperatures rise, maintaining optimal operating conditions and extending the lifespan of the unit.
Technical Specifications
| Input Voltage | AC 100–240V / 50–60Hz (US Plug: AC 110V) |
| Output Voltage | 0–30V (adjustable) |
| Output Current | 0–5A (adjustable) |
| Voltage Resolution | 0.1V |
| Current Resolution | 0.01A |
| Ripple Voltage | Vpp ≤1% |
| Ripple Noise | ≤1mV |
| Efficiency | >85% |
| Digital Display | 3-digit LED |
| Operating Environment | -10°C to 45°C (14°F–113°F), RH ≤90% |
| Storage Environment | -20°C to 60°C (-4°F–140°F), RH ≤80% |
| Material | ABS |
| Power Cord Length | 1.2m / 3.94 ft |
| Output Line Length | 1.0m / 3.28 ft |
| Plug Type (This Listing) | US Plug (compatible with USA, Canada, Mexico, India, Philippines, Thailand, Taiwan) |
| Noise Level | 60 dB |
Package Contents
- 1 × 30V / 5A Adjustable DC Bench Power Supply (US Plug)
Note: Product appearance and printed labels may vary slightly by production batch but do not affect performance. Color may differ slightly from images due to monitor settings and lighting. Measurement tolerance is ±1–3cm.
Complete Your Workshop
Pair this bench supply with other handy workshop and organization tools:
- 10Pcs Wooden Handle Nylon Bristle Paint Brush Set — Dusting & Cleaning Tools
- 1pc Precision Japanese Double-Edged Hand Saw — SK5 Steel, Fine-Toothed
- 360-Degree Rotating Storage Tray for Sundry & Workspace Organization
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What is the output voltage and current range of this adjustable bench power supply?
A: This DC bench power supply offers a fully adjustable output voltage of 0–30V and output current of 0–5A. Both can be set precisely using the front-panel controls, with a voltage resolution of 0.1V and current resolution of 0.01A, making it ideal for a wide range of electronics testing and DIY projects.
Q: Does this power supply work in the United States, and what plug type is included?
A: Yes! This listing ships with a US Plug (standard two/three-prong) compatible with AC 110V mains power used in the United States, Canada, Mexico, India, the Philippines, Thailand, and Taiwan. Simply plug it in and it is ready to use.
Q: What safety protections does this bench power supply include?
A: The unit is equipped with multiple safety mechanisms including short-circuit protection, over-temperature protection, overload protection, overvoltage protection, a built-in fuse, and an anti-reverse connection feature — all designed to protect both the supply itself and the devices connected to it.
Q: Can this power supply operate in both constant voltage and constant current modes?
A: Yes. It automatically switches between Constant Voltage (C.V.) and Constant Current (C.C.) modes depending on the load. This makes it highly versatile for charging batteries, testing circuits, and powering components that may require current-limited operation.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.