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UL 1310

Home > Design Capabilities > Safety

UL1310 covers Class 2 power supplies and battery chargers intended for use in indoor and outdoor environments on alternating branch circuits with a maximum potential of 150V to ground. There are many areas to the scope as detailed below:

The requirements apply to:

1. Portable and semi permanent mounted direct plug-in units provided with 15A blade configurations for use on nominal 120 or 240V branch circuits
2. Cord and plug connected units provided with a 15 or 20A attachment plug configuration and
3. Units permanently connected to the input supply.
   
   Within the requirement units may also be provided with a direct current input jack for being powered from a vehicle battery adapter. These units utilise an isolated transformer and may incorporate components to provide an alternating or direct current output. Each output provides Class 2 power levels in accordance with the National Electrical Code, ANSI/NFPA 70. Maximum output voltage may not exceed 42.4V peak for alternating current, 60V for continuous direct current. These products are intended primarily to provide power to low voltage, electrically operated devices.
   
4. Products whose input power does not exceed 660W under any possible condition of output loading.
5. Class 2 products intended for use with toys.  Products of this type shall also comply with the Standard of Toy Transformers, UL 697.
   
   A product marked for a specific end-use may also be subjected to additional requirements found in the applicable end product standard.

Sunpower Class 2 Power Units include the newly released CLG-100 Series.

 The requirements do not cover the following areas

1. The effect that a power unit may have on the equipment or system to which it is connected.  
2. Products intended to charge batteries for starter motors used to start engines. These are covered by the Standard for Battery Chargers for Charging Engine-Starter Batteries, UL 1236.
3. Products with outputs other than Class 2, nor battery chargers intended to charge batteries employed in wheel chairs or similar types of mobility aids.  Products of this type are covered by the Standard for Power Units Other Tan Class 2, UL 1012.
4. Products without a rectifier, these may be covered by the Standard for Class 2 and Class 3 Transformers, UL 1585.
5. Products solely powered by a dc source. These are covered by the Standard for Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Craft, UL 458 or by requirements appropriate to the intended application.
6. Products intended for supplying low voltage landscape lighting.  Products of this type are covered by the Standard for Low Voltage Landscape Lighting Systems, UL 1838.

Last Amendment: 24/01/2007 14:42:41