What is UL 60947-2:2020?

UL 60947-2:2020 is a standard set by Underwriters Laboratories, which is a globally recognized safety certification organization. This standard specifically focuses on the safety requirements for low-voltage switchgear and control gear assemblies.

of UL 60947-2:2020

This standard provides guidelines and requirements for various aspects related to switchgear and control gear assemblies, including their construction, rated voltages, currents, and performance under fault conditions. It covers a wide range of equipment, such as circuit-breakers, contactors, motor starters, disconnect switches, and control gear modules.

The primary purpose of UL 60947-2:2020 is to ensure the safety of personnel working in close proximity to these electrical devices. The standard defines several design criteria and test methods that manufacturers need to comply with in order to achieve the UL certification mark.

Key Features and Benefits

UL 60947-2:2020 incorporates several key features to enhance safety and reliability. One of the significant aspects is the requirement for short-circuit withstand strength, which ensures that the switchgear can handle high fault currents without endangering nearby personnel or causing further damages.

Another important feature is the provision for overcurrent protection, which helps prevent excessive current flow and mitigates associated risks. The standard also addresses switching performance, temperature rise limits, mechanical endurance, and resistance to environmental conditions.

Compliance and Impact

Complying with UL 60947-2:2020 is crucial for manufacturers of low-voltage switchgear and control gear assemblies to gain market acceptance and demonstrate their commitment to safety. By adhering to the standard, manufacturers not only minimize the risks of electrical hazards but also increase the reliability and lifespan of their products.

Furthermore, organizations that use or specify such equipment can have confidence in the safety of these devices, knowing that they have undergone rigorous testing and meet the required quality standards. This helps protect personnel, facilities, and assets from potential electrical accidents.