What is UL 902 ?

What is UL 902?

UL 902 is a technical standard published by Underwriters Laboratories (UL) that outlines the requirements for household electric coffee makers. It is also commonly referred to as the Standard for Household Electric Coffee Makers.

The purpose of UL 902 is to establish safety requirements and test procedures for electric coffee makers. It covers various aspects of coffee maker design, including electrical components, heating elements, automatic shut-off features, and other functional aspects. By complying with UL 902, manufacturers can ensure that their coffee makers are safe to use and meet the necessary quality standards.

Key Requirements of UL 902

UL 902 outlines several key requirements that manufacturers must meet to obtain UL certification for their products. These requirements include:

Electrical Safety: The standard requires that all electrical components of the coffee maker be listed for compatibility with a 120V power supply.

Heating Elements: The standard specifies the maximum allowable heat for the heating elements.

Automatic Shut-off: The standard requires that the coffee maker have an automatic shut-off feature that turns off the heating elements to prevent overheating.

Flammability: The standard specifies the flammability of the materials used in the coffee maker, ensuring that they are not easily ignited by heat or fire.

Electromagnetic Compatibility: The standard requires that the coffee maker's design and materials meet the requirements of the National Electric Code (NEC) for electromagnetic interference (EMI) and Radio Frequency (RF) emissions.

Performance: The standard specifies the performance requirements for the coffee maker, including the minimum temperature and time for each brew cycle.

Safety: The standard requires that the coffee maker have a user-friendly design and operation, including clear labeling and warning messages.

Conclusion

UL 902 is an essential technical standard for ensuring the safety and proper functioning of household electric coffee makers. By complying with the requirements outlined in UL 902, manufacturers can ensure that their products meet the necessary quality standards and are safe to use. Understanding the purpose and requirements of UL 902 is essential for professionals and organizations involved in product development and manufacturing.