What is UL 60335-2-264 ?

Title: What is UL 60335-2-264: A Safety Standard for Portable Transformers and Power Supplies?

Portable transformers and power supplies are essential products that power many everyday devices, including smartphones, tablets, laptops, and outdoor equipment. However, these products can pose safety risks if not designed and manufactured to meet the safety standards set by Underwriters Laboratories (UL). UL 60335-2-264 is a safety standard that specifically covers the safety requirements for portable transformers, power supplies, battery chargers, and similar products that are designed for household use.

What is UL 60335-2-264?

UL 60335-2-264 is a safety standard defined by UL for household and similar electrical appliances. This standard specifically covers the safety requirements for portable transformers, power supplies, battery chargers, and similar products that are designed for household use. The purpose of UL 60335-2-264 is to ensure the safety of consumers when using household electrical appliances, and it sets forth specific guidelines for manufacturers to follow in order to prevent potential hazards such as electric shock, fire, or mechanical injuries.

To comply with this standard, manufacturers must design and produce their products in a way that minimizes risks associated with electrical components, wiring, insulation, temperature rise, and other potential dangers. The standard outlines key requirements that manufacturers must meet to ensure the safety of their products, including the use of appropriate materials for electrical components, the use of insulated wiring, and the provision of overcurrent protection.

What is UL 60335-2-373?

UL 60335-2-373, also known as the Standard for Safety of Household and Similar Electrical Appliances Part 2: Particular Requirements for Commercial Electric Cooking Ranges, Ovens, Hobs, and Grills, is a safety standard developed by UL, an independent product safety certification organization. This standard specifically applies to commercial electric cooking appliances and sets out requirements to ensure their safe operation.

The main purpose of UL 60335-2-373 is to reduce the risks associated with the use of commercial electric cooking appliances in professional kitchens. These appliances are subject to high temperatures, heavy loads, and demanding operating conditions, so it's crucial to establish safety requirements that minimize the potential for accidents, injuries, or fires.

Key Requirements of UL 60335-2-373

To comply with this standard, manufacturers must design and produce their products in a way that meets the following key requirements:

The use of fire-resistant materials for all electrical components, wiring, and insulation.

The provision of overcurrent protection, including a circuit breaker or fusible interruptor.

The use of a thermal switch or temperature limit switch to prevent overheating.

The use of a grounding feature to prevent electrical currents from flowing through the body.

The provision of a user control, such as a circuit breaker or a plug-out switch, to allow users to disconnect from the power supply.

The use of a fail-safe mechanism, such as a thermal switch or a circuit breaker, to automatically disconnect the power supply in the event of an overcurrent or overheating condition.

Conclusion:

UL 60335-2-264 and UL 60335-2-373 are important safety standards that require manufacturers of portable transformers, power supplies, battery chargers, and similar products to design and produce their products in a way that meets the safety requirements set by UL. By ensuring that their products are safe for use in a wide range of applications, manufacturers can help reduce the risks associated with the use of these products, including electric shock, fire, or mechanical injuries.