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What is UL 60335?

The Background of UL 60335

UL 60335 is a safety standard that specifically covers the safety requirements for household and similar electrical appliances. It was developed by Underwriters Laboratories (UL), a global safety certification company, in response to the increasing number of electrical accidents occurring in households.

The standard sets forth specific criteria and test methods to ensure the safety of various types of electrical appliances such as refrigerators, washing machines, vacuum cleaners, and more. These appliances are tested for potential hazards including electrical shock, fire, mechanical hazards, and radiation exposure.

Key Elements of UL 60335

UL 60335 consists of several key elements that manufacturers must comply with in order to achieve certification. These elements include:

Temperature Tests: Appliances are tested to ensure they do not overheat during normal operation, which could lead to fires or burns.

Leakage Current Tests: The standard also requires appliances to undergo leakage current tests to ensure electrical safety and prevent electrical shocks to users.

Mechanical Strength Tests: Appliances must be able to withstand mechanical stresses such as impacts, vibrations, and drops to ensure they do not pose hazards to users or surrounding objects.

Radiation Tests: Certain appliances that emit radiation, such as microwave ovens, are subject to specific radiation tests to ensure they emit levels within safe limits.

The Importance of UL 60335 Certification

UL 60335 certification is crucial for both manufacturers and consumers. For manufacturers, achieving UL 60335 certification signifies that their products meet the necessary safety standards, reducing potential liability risks and increasing consumer confidence in their brand.

For consumers, purchasing appliances with UL 60335 certification provides assurance that the products have been thoroughly tested and are safe to use. It greatly reduces the risk of electrical accidents, protecting both property and human lives.

In addition, compliance with UL 60335 is often a requirement for manufacturers to enter certain international markets. Many countries and regions have adopted UL 60335 as their national safety standard, making it essential for exporters to obtain certification in order to access these markets.


UL 60335 plays a vital role in ensuring the safety of household electrical appliances. By setting forth rigorous safety requirements and test methods, it helps protect consumers from electrical hazards and establishes trust between manufacturers and consumers. Ensuring compliance with UL 60335 not only improves overall product quality but also opens up numerous international market opportunities for manufacturers.


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