What is UL 60947-3-2020 ?

Title: Unlocking the Benefits of UL 60947-2:2020 for Low-Voltage Circuit Breakers

Electrical installations are a critical aspect of our daily lives, powering homes, businesses, and industries. As with any equipment, the safety and efficiency of these installations are paramount to their overall performance. The latest version of UL 60947-2:2020, a standard for low-voltage circuit breakers, is designed to establish guidelines for the design, construction, testing, and performance of these devices. By understanding the purpose and main features of this standard, professionals in the field of electrical engineering and product manufacturing can gain insights into how to ensure the safety and efficiency of electrical installations.

What is UL 60947-2:2020?

UL 60947-2:2020 is a technical standard developed by Underwriters Laboratories (UL) that pertains to low-voltage switchgear and controlgear. This standard defines the requirements for high levels of safety and performance for electrical components used in various applications. The primary purpose of UL 60947-2:2020 is to ensure the safe operation of low-voltage switchgear and controlgear systems.

Main Features of UL 60947-2:2020:

Compliance with UL 60947-2:2020 is mandatory for manufacturers of low-voltage circuit breakers. The standard establishes guidelines for the design, construction, testing, and performance of these devices. It aims to ensure that the circuit breakers conform to certain safety criteria and exhibit desired functionality.

UL 60947-2:2020 covers various aspects of low-voltage circuit breakers, including:

Electrical Characteristics: The standard defines the electrical characteristics of the circuit breakers, such as their voltage, current, and response time. These characteristics are critical factors that determine the devices' performance and safety.

Safety Criteria: The standard outlines the safety requirements that manufacturers must meet to ensure the safety of electrical installations. These requirements include requirements for labeling, marking, and documentation.

Performance Requirements: The standard establishes guidelines for the performance of the circuit breakers, including their ability to withstand various testing conditions and their resistance to aging and degradation.

Electrical Safety Tests: The standard specifies the various tests that manufacturers must conduct to verify the safety and performance of the circuit breakers. These tests include electrical continuity, insulation resistance, and voltage-dependent thermal breakdown (VDTB).

Conclusion:

UL 60947-2:2020 is an essential standard for professionals working in the field of electrical engineering and product manufacturing. Compliance with this standard is crucial for ensuring the safety and efficiency of electrical installations. By understanding the main features and purpose of this standard, manufacturers can produce reliable and safe electrical products that meet the industry's stringent safety requirements.