The LT-2500 AC/DC Power Supply is a high-performance power management solution engineered for professional maritime applications. Designed and manufactured by Lars Thrane, this 500-watt power supply delivers stable and reliable energy to critical onboard systems such as communication equipment, navigation systems, and GMDSS installations.

The unit supports dual power input sources, allowing connection to both 115-240 VAC main power and a 24 VDC battery backup. In the event of a loss of AC power, the system automatically performs a seamless switch to the DC battery input, ensuring uninterrupted operation of essential vessel equipment. This automatic switchover makes the LT-2500 ideal for systems where continuous power availability is critical.

Delivering 28 VDC output with up to 18 A current, the LT-2500 provides efficient and stable power distribution to onboard electronics. The power supply features two DC outputs, LED status indicators for AC input and DC output, and an alarm output to signal loss of AC input. An integrated AC on/off button allows manual control of the AC input source for convenient operation.

Engineered for demanding maritime environments, the LT-2500 includes multiple safety mechanisms such as short-circuit protection, overload protection, thermal overload protection, fuse protection, and reverse polarity protection. The device operates efficiently without forced cooling, providing silent operation and reduced maintenance requirements.

With IEC 60945 maritime certification, CE marking, and DNV approval, the LT-2500 meets strict international standards for marine equipment. The unit is designed to operate reliably in temperatures from −25°C to +55°C, making it suitable for a wide range of vessel types including commercial ships, fishing vessels, and offshore installations.

Compact, efficient, and easy to install, the LT-2500 AC/DC Power Supply provides a dependable power solution for modern maritime systems that require continuous and secure power delivery.

Key Features

• 500W AC/DC maritime power supply

• Input: 115-240 VAC + 24 VDC battery

• Output: 28 VDC up to 18 A

• Automatic seamless switching between AC and DC power sources

• 2 × DC output ports

• LED status indicators for AC input and DC output

• AC alarm output for loss of AC power detection

• AC On/Off control button

• Protection features:

  • Short-circuit protection

  • Overload protection

  • Thermal overload protection

  • Fuse protection

  • Reverse polarity protection

• No forced cooling required (fanless design)

• CE / IEC 60945 maritime certification

• DNV approved

• Operating temperature −25°C to +55°C

• Designed for professional maritime environments