The UEI Series also offers additional advanced features to meet various system requirements. A wealth of self-protection features and safety compliances avoid both converter and external circuit problems including, input overvoltage transient protection, input under-voltage turn-off, output overcurrent short circuit protection, over-temperature protection, stable no load operation, and as mentioned previously, start-up into pre-biased loads, UL/EN/IEC 60950 safety approvals, and input/output isolation voltage up to 2250VDC.