General Overview: The LDR40MH12-HT is a DC power supply with an integrated accupack, designed for uninterrupted power supply (DC-USV) applications. It is suitable for both AC and DC input voltages and provides a stable DC output.

Input Specifications: The device accepts an AC input voltage range of 85 - 270V (0-400Hz) and a DC input voltage range of 120 - 400V. The input current at nominal load is 1.3A at 115V and 0.65A at 230V AC, with a peak current of less than 17A at 230VAC. It includes a transient voltage suppressor for protection.

Output Specifications: The power supply delivers a nominal output voltage of 12VDC with a current of 8.0A and a power output of 96 Watts. It features current limiting and a residual ripple of less than 25mVPP. The buffered voltage ranges from 9.0 to 13.0 VDC.

Control and Operating Data: The device maintains control deviations of less than 200mV with load variations between 10% and 90%, and less than 25mV with ±10% load variation. It operates efficiently at approximately 86% in grid mode, with a buffered time of 30 minutes at a typical 8A load. The operating temperature range is from -40°C to +70°C.

Safety and Protection: The LDR40MH12-HT includes safety features such as slow blow fuses for input and output, short circuit protection, and overload protection. It complies with various safety standards including VDE, IEC, and EN regulations, and is rated for IP65 protection class.

Mechanical and Installation Data: The device measures 83mm x 161mm x 160.5mm and weighs approximately 3.5kg. It can be mounted on a DIN-rail or wall. The construction adheres to CSA/UL, VDE, IEC, and EN standards.

Additional Features: The power supply includes status indicators for input, charging, buffer mode, and temperature, as well as relay inputs for accu-protection. It is vibration-proof and suitable for use in tropical environments with high humidity.