What is UL 60947-2:2020?

UL 60947-2:2020 is a professional technical standard that provides guidelines and specifications for low-voltage switchgear and controlgear. This standard, issued by Underwriters Laboratories (UL), is widely recognized and adopted in the electrical industry to ensure the safety and performance of these devices.

The Scope of UL 60947-2:2020

UL 60947-2:2020 covers the requirements for circuit-breakers, switches, contactors, and other similar devices intended to be used in industrial, commercial, and residential applications. The standard outlines specific mechanical, electrical, and operational characteristics that these devices must meet to ensure their reliable and safe operation.

Key Features of UL 60947-2:2020

UL 60947-2:2020 incorporates several important features to guarantee the quality and performance of low-voltage switchgear and controlgear. First and foremost, the standard sets forth stringent requirements for product testing and evaluation, including temperature rise tests, dielectric strength tests, and short-circuit withstand capability tests. These rigorous testing procedures help ensure that the devices can withstand various environmental conditions and fault scenarios without compromising their safety.

Additionally, UL 60947-2:2020 addresses the proper selection and application of these devices, providing guidance on factors such as rated current, terminal capacity, and utilization category. By following the specified guidelines, designers and installers can ensure that the equipment is suitable for its intended use and will perform reliably throughout its service life.

Compliance and Certification

Manufacturers of low-voltage switchgear and controlgear must demonstrate compliance with UL 60947-2:2020 in order to receive UL certification for their products. This certification is an essential prerequisite for market acceptance and is often a requirement imposed by regulatory bodies and specifying authorities. By adhering to the standards outlined in UL 60947-2:2020, manufacturers can instill confidence in customers regarding the safety and quality of their devices.