What is UL 61058-2-4:2020?

The UL 61058-2-4:2020 is a technical standard that provides guidelines and requirements for the safety and performance of switches used in electrical appliances. This standard is specifically focused on electronic switches known as "pushbuttons." It is an essential document for manufacturers, designers, and engineers involved in the development of products with switch functionalities.

Scope and Objectives

The main objective of UL 61058-2-4:2020 is to ensure the safety and reliability of pushbutton switches. The standard covers various aspects, including electrical and mechanical characteristics, thermal properties, insulation, and durability. It sets standards for the materials used, construction methods, and performance criteria for these switches.

The scope of UL 61058-2-4:2020 includes both manually operated and electronically controlled switches used in appliances such as household appliances, office equipment, industrial machinery, and medical devices. It also addresses switches used in hazardous locations where specific safety considerations are required.

Key Requirements of UL 61058-2-4:2020

The UL 61058-2-4:2020 standard includes several important requirements that must be met by switches to ensure their safety and performance. These requirements include:

Electrical Ratings: The standard specifies the maximum voltage and current limits that switches can handle to prevent electrical failures or hazards.

Dielectric Strength: It sets requirements for the ability of switches to withstand high levels of voltage without any breakdown or insulation failure.

Environmental Conditions: The standard defines the temperature, humidity, and other environmental conditions under which switches should operate without any degradation in performance.

Mechanical Endurance: UL 61058-2-4:2020 includes guidelines for the number of mechanical operations that switches must withstand without any significant wear or deterioration.

Marking and Documentation: The standard mandates appropriate labeling and documentation requirements, ensuring proper identification and understanding of switch characteristics, ratings, and limitations by users and manufacturers.

Compliance and Certification

Manufacturers need to ensure that the pushbutton switches they produce comply with the requirements specified in UL 61058-2-4:2020. Compliance can be demonstrated through various means, including self-declaration, third-party testing, and certification from recognized authorities.

Additionally, compliance with this standard helps manufacturers gain access to global markets, as many countries recognize and accept UL standards as a benchmark for product safety and performance.

In conclusion, UL 61058-2-4:2020 is a crucial technical standard governing the safety, reliability, and performance of pushbutton switches used in electrical appliances. Adhering to these requirements is essential for manufacturers to ensure their products meet the necessary regulations and deliver safe and reliable user experiences.