What is UL 60947-2:2020?

UL 60947-2:2020 is a technical standard developed by Underwriters Laboratories (UL), an independent global safety certification company. This standard specifically deals with circuit-breakers and similar equipment used in various electrical installations. It provides guidelines and requirements to ensure the safety, performance, and reliability of these devices.

Scope of UL 60947-2:2020

The scope of UL 60947-2:2020 covers low-voltage switchgear and controlgear, including circuit-breakers, contactors, motor starters, and other related equipment. These devices are widely used in industrial, commercial, and residential applications to control and protect electrical circuits. This standard outlines the technical requirements, testing methods, and ratings for these devices to ensure their proper functioning and safe operation.

Main Features and Requirements

UL 60947-2:2020 specifies several features and requirements that circuit-breakers and similar equipment must meet. These include:

Rated voltage and current: The standard provides a range of specified voltage and current ratings based on different application scenarios.

Short-circuit breaking capacity: It defines the maximum fault current that a device can safely interrupt without causing any damage.

Coordination with other protective devices: The standard emphasizes coordination between circuit-breakers and other protective devices to prevent cascading failures during faults or abnormal conditions.

Environmental considerations: UL 60947-2:2020 also takes into account the impact of external factors like temperature, humidity, and vibration on the performance of these devices.

Benefits of UL 60947-2:2020 Compliance

Ensuring compliance with UL 60947-2:2020 brings several benefits to manufacturers, installers, and end-users alike:

Enhanced safety: By adhering to the standard's guidelines, the risk of electrical hazards and accidents is significantly reduced.

Improved product quality: Following the requirements of UL 60947-2:2020 ensures that circuit-breakers and similar equipment meet high-quality standards and deliver reliable performance.

Easier market access: Many countries and regions have regulations and certifications in place that require compliance with recognized safety standards like UL 60947-2:2020. Meeting these requirements facilitates entrance into international markets.