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UL 1012
New product
UL 1012 Power Units Other Than Class 2
standard by Underwriters Laboratories, 11/09/2010
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Full Description
Please note: All interim revisions for this edition available at time of your purchase will be included.The requirements in UL 1012 cover portable, stationary, and fixed power units having an input rating of 600 volts or less, direct- and alternating- current, with at least one output not marked Class 2, and that are intended to be employed in ordinary locations in accordance with the National Electrical Code, ANSI/NFPA 70.
These requirements cover general purpose power supplies and power supplies for uses such as to supply some household appliances, school laboratories, cathodic protection equipment; power supply-battery charger combinations; and industrial equipment, including inverters, divided into two classes - those rated 10 kilovolt-amperes or less and those rated more than 10 kilovolt-amperes.
Power units with all outputs identified as Class 2 are covered under the Standard for Class 2 Power Units, UL 1310.
These requirements do not cover the following types of battery chargers:Battery chargers intended to charge motor-starting batteries as covered by Standard for Battery Chargers for Charging Engine-Starter Batteries, UL 1236;Battery chargers for charging industrial batteries which power material handling trucks, tractors, personnel carriers, and similar motive equipment, as covered by the Standard for Industrial Battery Chargers, UL 1564;Chargers or charging functions incorporated into converter or inverters for use in recreational vehicles and boats, as covered by the Standard for Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts, UL 458; andCharge controllers or charging functions incorporated into equipment for use in independent power systems, as covered by the Standard for Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources, UL 1741.A battery charger not wholly within the scope of one of the standards specified above shall be investigated to the requirements of this Standard supplemented by the applicable requirements of whichever of the standards above is most applicable.
These requirements do not cover a power supply for a fire-protective or burglary-protective signaling system, electrostatic-air cleaning equipment, recreational vehicles, electric discharge or neon tubing, test equipment for commercial or industrial laboratories; or an appliance or system in which the power supply is used.
These requirements cover power supplies for centralized ac or dc power systems, including dc power supplies, rectifiers, and the like, that form part of these systems.
A power supply that is intended for use with a specific type of product other than as referenced in above is investigated under the standard for that end product.
These requirements do not cover the effect that a power supply may have on an equipment or a system to which it is connected.
A power system, the primary function of which is maintaining continuity of an alternating power source in case of input power failure, is covered under the Standard for Uninterruptible Power Systems, UL 1778.