What is UL 60335-2-404 ?

Title: Understanding UL 60335-2-404: The Safety Standard for Portable Transformers and Power Supplies

Portable transformers and power supplies are essential products that power many everyday devices. However, these products can pose potential hazards if not designed and manufactured to meet the safety standards set by Underwriters Laboratories (UL). In this article, we will discuss UL 60335-2-404, a safety standard that sets guidelines for manufacturers to ensure the safety and performance of their portable transformers and power supplies.

What is UL 60335-2-404?

UL 60335-2-404 is a safety standard defined by UL for household and similar electrical appliances. The standard specifically covers the safety requirements for portable transformers, power supplies, battery chargers, and similar products that are designed for household use. The main purpose of UL 60335-2-404 is to ensure the safety of consumers when using household electrical appliances.

UL 60335-2-404 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.

What is meant by "safety requirements"?

When we talk about safety requirements, we are referring to the measures that a product must take to minimize the risk of electric shock, fire, or mechanical injuries to consumers. These safety requirements are set by Underwriters Laboratories (UL) and are intended to ensure that the products are safe for use in a wide range of conditions.

What is UL 60335-2-395?

UL 60335-2-395 is a technical standard used in the certification process for household and similar electrical appliances. The standard provides guidelines and requirements that manufacturers must follow to ensure the safety and performance of their products.

UL 60335-2-395 is specifically designed to address specific risks associated with appliances that include ultraviolet (UV) radiation sources. These types of appliances, such as tanning beds, germicidal lamps, and photochemical devices, pose potential dangers if not properly designed and manufactured.

The purpose of UL 60335-2-395 is to provide manufacturers with a set of requirements that they must follow when designing and manufacturing products that contain UV radiation sources. The standard sets forth requirements for construction, radiometric output, marking, and documentation, among other things.

Key Requirements of UL 60335-2-395

To comply with UL 60335-2-395, manufacturers must follow these key requirements:

Construction: The standard requires that all UV radiation sources be designed and constructed to prevent unauthorized access to the electrical circuit.

Radiometric output: The standard specifies the level of UV radiation that can be emitted from the appliance. Manufacturers must ensure that the appliance emits no more than the specified level.

Marking: The standard requires manufacturers to mark their products with the appropriate warning labels.

Documentation: Manufacturers must maintain records of their products, including information about the construction, materials used, and any testing that has been conducted.

Conclusion:

UL 60335-2-404 and UL 60335-2-395 are important safety standards that manufacturers must comply with when designing and manufacturing portable transformers and power supplies. By following the guidelines and requirements set forth by these standards, manufacturers can ensure that their products are safe for use in a wide range of conditions.