Uninterruptible power systems (UPS) - Part 1: Safety requirements


1 Scope

UL 62040-1 covers movable, stationary, fixed or built-in UPS for use in low-voltage distribution systems that are intended to be installed in an area accessible by an ordinary person or in a restricted access area, and that delivers fixed frequency AC output voltage with port voltages not exceeding 1,000 V AC or 1,500 V DC and that includes an energy storage device. It applies to pluggable and to permanently connected UPS, whether consisting of a system of interconnected units or of independent units, subject to installing, operating and maintaining the UPS in the manner prescribed by the manufacturer.