What is UL 924 ?

What is UL 924?

UL 924 is a technical standard published by Underwriters Laboratories (UL) that outlines the requirements and testing procedures for Household Electric Coffee Makers. It is also known as the Standard for Household Electric Coffee Makers.

The primary purpose of UL 924 is to establish safety requirements and test procedures for electric coffee makers. The standard covers various aspects of coffee maker design, including electrical components, heating elements, automatic shut-off features, and other functional aspects. By complying with UL 924, manufacturers can ensure that their coffee makers are safe to use and meet the necessary quality standards.

Key Requirements of UL 924

To comply with UL 924, manufacturers must ensure that their electric coffee makers meet several key requirements. These requirements include:

Electrical Safety: The electric coffee maker must have an adequate electrical safety design and must be listed in accordance with UL 5021.

Heating Elements: The electric coffee maker must have a heat source that is safe and will not cause burns or other injuries.

Automatic Shut-Off: The electric coffee maker must have an automatic shut-off feature that turns off the heat source to prevent overheating.

Water Limitation: The electric coffee maker must not exceed the water limit specified by the manufacturer.

Noise: The electric coffee maker must not produce noise that is excessive or that would cause discomfort for the user.

Durability: The electric coffee maker must be able to withstand the expected use and conditions.

Testing Procedures

To ensure that their electric coffee makers meet the requirements of UL 924, manufacturers must conduct testing that verifies the safety and functionality of their products. This testing may include:

Electrical Safety Test: The electric coffee maker must undergo an electrical safety test to ensure that it meets the requirements of UL 5021.

Water Limitation Test: The electric coffee maker must be able to limit the amount of water it can hold and must not exceed the specified water limit when filled to capacity.

Noise Test: The electric coffee maker must be tested to ensure that it does not produce excessive noise that would cause discomfort for the user.

Durability Test: The electric coffee maker must be able to withstand the expected use and conditions.

Conclusion

UL 924 is an essential standard for ensuring the safety and functionality of Household Electric Coffee Makers. By complying with this standard, manufacturers can ensure that their products meet the necessary quality standards and are safe to use. The key requirements outlined in this standard, including electrical safety, heating elements, automatic shut-off, water limitation, and durability, are critical for ensuring the safety and reliability of these popular household appliances. Compliance with UL 924 is mandatory for manufacturers to ensure that their products are safe and reliable for use.