Technological Innovation

What is UL 61058-2-72:2020?

UL 61058-2-72:2020 is a technical standard that provides guidelines for the safety and performance of switches used in electrical appliances. It was published by Underwriters Laboratories (UL), a globally recognized independent safety science company. This article aims to provide an in-depth understanding of this standard and its significance in ensuring the safety of switch products.

Scope of UL 61058-2-72:2020

This standard applies to switches used in electrical appliances, including those used in household, commercial, and industrial environments. It covers various types of switches, such as toggle switches, rocker switches, push-button switches, rotary switches, and more. Its scope also includes switches used in hazardous locations and switches with added functionalities, such as dimmers or timers.

Key Requirements and Tests

UL 61058-2-72:2020 outlines specific requirements that switches must meet in terms of construction, electrical performance, environmental conditions, and other factors affecting their safety and reliability. Some key requirements include proper insulation, mechanical strength, dielectric strength, contact resistance, and temperature rise limitations. The standard also provides detailed testing procedures to verify compliance with these requirements.

The Importance of UL 61058-2-72:2020 Compliance

Compliance with UL 61058-2-72:2020 is crucial for manufacturers of switch products, as it ensures the safety and reliability of their products. Non-compliant switches can pose serious risks, such as electric shock, fire, or malfunctioning of connected electrical appliances. By adhering to this standard, manufacturers can demonstrate the quality and safety of their switches, gaining trust from consumers and regulatory authorities.


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