13.8V 30A Switching DC Power Supply for Radios

Stable 13.8V Power for Communication and Radio Equipment

This 13.8V 30A switching DC power supply is designed to deliver stable, regulated power for communication equipment, short-wave and amateur radio stations, and other 13.8V DC devices. With adjustable output around a 13.8V center point and less than 2% voltage regulation, it provides consistent performance even under varying loads.

The compact, lightweight unit (approx. 1.5 kg) features a back-lit combination volt/amp meter for clear, real-time monitoring of output voltage and current. A front-panel voltage adjust knob allows fine-tuning: turn clockwise to increase and counterclockwise to decrease, with 13.8V at the center position. Built-in protection includes short-circuit protection and automatic current limiting up to 30A to help safeguard both the power supply and connected equipment.

Reliable Power for Short-Wave and Communication Use

Engineered for communication applications, this supply is suitable for powering short-wave base stations, transceivers, and other 13.8V DC communication devices. Ripple is kept below 80 mVp-p at rated load to support clearer, more stable operation of sensitive electronics. The 220VAC 50Hz input and 5A fuse provide straightforward integration into standard mains environments, while the robust housing is designed for continuous operation at up to 20A, with 30A available at peak.

Why It's a Smart Choice

• Stable 13.8V Output - Regulated DC output with less than 2% variation supports reliable performance of radios and communication gear.
• High Current Capacity - Delivers up to 30A (20A continuous), suitable for a wide range of 13.8V communication and electronic devices.
• Built-in Safety Features - Short-circuit protection, automatic current limiting, and fused AC input help protect connected equipment.

FAQ

Q: What input power does this unit require?
A: It operates from a 220VAC 50Hz mains supply and uses a 5A fuse on the AC input.

Q: Is the output voltage adjustable?
A: Yes. The front-panel knob allows you to adjust the DC output around the 13.8V center point. At the center position, it supplies approximately 13.8V.

Q: What is the maximum output current?
A: The power supply can provide up to 30A maximum, with 20A rated for continuous operation.

Q: Can this be used to charge car batteries or power motorized equipment?
A: No. It is not intended for charging car batteries or powering devices with very high inrush current, such as large motors.

Q: What type of equipment is it best suited for?
A: It is particularly suitable for short-wave and amateur radio base stations, communication equipment, and other 13.8V DC electronic devices that require stable, low-ripple power.