LT-2500 Lars Thrane LT-2500 AC-DC Power Supply, 500W, 28VDC, 18A

LT-2500 Lars Thrane LT-2500 AC-DC Power Supply, 500W, 28VDC, 18A

LT-2500 AC/DC Power Supply – developed and manufactured by Lars Thrane A/S – offers 500W power without forced cooling. The power supply will be CE Mark / IEC 60945 certified for the maritime market.

PERFORMANCE
The LT-2500 AC/DC Power Supply has the following interfaces: AC input, DC input, 2 x DC output, and Alarm discrete output for signaling of no AC input source. The power supply has status LED’s indicating: AC input and DC output available. Also, the power supply AC input source can be controlled by using the On/Off button.

The LT-2500 AC/DC Power Supply is designed to be used as the primary power supply for the maritime market (incl. GMDSS), where it is required to connect both AC and DC input source to maintain power at all time and under any conditions. In case of the AC input source disappears, the power supply will seamlessly switch over to the DC input source.

The LT-2500 AC/DC Power Supply is designed and built for the demanding and rough environment at sea and with an operational temperature range from -25⁰C to +55⁰C (-13⁰F to +131⁰F).

INSTALLATION
The LT-2500 AC/DC Power Supply is very easy to install. Everything is included in the box to get started with the installation and operation of the power supply. To install the power supply you must remove the protection cover by loosing two screws. Hereafter, the power supply can be mounted with four screws (one in each corner) to a solid surface.

The power supply is designed to handle AC and DC wires of large cross-section, which is commonly used on the vessels.

More than 40 years of experience have been put into the design and construction of the LT-2500 AC/DC Power Supply, with an exceptional performance and specification level.

Key Features:

• 500W AC/DC Power Supply
• Input: 85-265 VAC + 24 VDC (battery)
• Output: 28 VDC (up to 18 A)
• AC On/Off button
• Seamless handover between AC and DC
• LED status indicators: AC in, DC out
• Fuse protection for AC and DC inputs
• No forced cooling required
• AC Alarm discrete output
• Short circuit protection
• Overload protection
• Thermal overload protection
• CE mark / IEC 60945 Maritime Approval
• DNV Certified

TYPICAL APPLICATION

DC input (PWR): The LT-3100S GMDSS system is designed to be used on 12 VDC and 24 VDC power buses (nominal).

External DC power to the LT-3100S GMDSS system is provided by connecting the proprietary 91-102118 Power Cable, 3m – delivered by Lars Thrane A/S.

The power connector is mounted on the back side of the LT 3110S Control Unit and marked ‘PWR’

. The power source for the LT-3100S GMDSS System must comply with the GMDSS regulations and the associated standards, minimum is compliance to IEC 60945 (2002).

The power source to LT-3110S Control Unit and the LT-3140S Interface Unit must be connected to the main and emergency source of power as required by SOLAS reg II-1/42 or /43, and a battery backup system.

When extending the power supply cables the positive (+) and the negative (-) must be installed closely together in order to keep the cable inductance low.

Make sure to use a galvanic isolated power supply as illustrated in Galvanic Isolated Power
Supply.

The input voltage range is: 12-24 VDC (2.2-1.7A). The LT-3110S Control Unit DC input connector and circuit is protected and certified for reverse polarity protection.

POWER SUPPLY CABLE: The DC Power cable features a Female Plug that connects to the rear of the control panel.

CONTROL PANEL DC POWER CONNECTOR: The DC Power connector(male) is mounted on the backside of the LT-3110S Control Unit.