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UL 1310 specifies requirements covering indoor and outdoor use Class 2 power supplies and battery chargers in applications such as lighting systems, machinery and other appliances installed in residential and industrial environments. These units utilize an isolating transformer and other components to provide either AC or DC outputs, subject to a maximum rating of 42.4VAC peak or 60VDC. The standard is aimed at products that primarily power low voltage, electrically operated devices. Direct plug-in and cord-connected units also include DC powered supplies operating from a vehicle battery via a cigarette lighter or equivalent DC connector or from a data port associated with information technology equipment. These units are also limited to a maximum input power of 600W. Other aspects covered by the standard include: packaging, corrosion, switches, weight, DC cabling, mounting, connections, strain relief, operating temperature, humidity and environment (indoor and outdoor).
