What is UL 60947-42-2020 ?

Title: Unlocking the Benefits of UL 60947-2:2020 for Low-Voltage Switchgear and Controlgear Products

Introduction:

The power sector is one of the most critical sectors, and the safety of electrical installations is of utmost importance. The Underwriters Laboratories (UL) is a global safety certification company that provides the necessary guidelines to ensure the safety, reliability, and performance of electrical devices. UL 60947-2:2020 is a professional technical standard that focuses on low-voltage circuit breakers and their performance requirements.

Purpose of UL 60947-2:2020:

The primary objective of UL 60947-2:2020 is to establish guidelines for the design, construction, and testing of low-voltage circuit breakers. It aims to ensure that these devices conform to certain safety criteria and exhibit desired functionality. Compliance with UL 60947-2:2020 standards guarantees enhanced protection against electrical faults and facilitates effective control of circuits.

Key Requirements of UL 60947-2:2020:

UL 60947-2:2020 has several key requirements that manufacturers, regulators, and end-users must comply with. These requirements are essential for ensuring the safety, reliability, and performance of low-voltage switchgear and controlgear products. Some of the key requirements of UL 60947-2:2020 include:

Electrical Safety:

The standard specifies the general requirements for electrical safety, including the use of non-contacting conductive materials, adequate insulation, and protection against electrical hazards.

Performance:

UL 60947-2:2020 sets performance requirements for the circuit breakers, including their ability to operate reliably in various operating conditions and their resistance to arcing and voltage surges.

Safety:

The standard requires that circuit breakers have a high level of safety, including the ability to detect and interrupt over-currents and the use of protective features to prevent electrical hazards.

Reliability:

UL 60947-2:2020 specifies the tests that manufacturers must conduct to ensure the reliability of their circuit breakers, including tests for their resistance to aging, short-circuits, and over-currents.

Electrical Characteristics:

The standard defines the electrical characteristics of circuit breakers, including their voltage rating, current capacity, and response time.

Main Features of UL 60947-2:2020:

UL 60947-2:2020 is a comprehensive standard that sets the guidelines for the design, construction, and testing of low-voltage circuit breakers. Some of the main features of this standard include:

Compliance with safety standards:

UL 60947-2:2020 is designed to ensure compliance with safety standards, including those set by Underwriters Laboratories (UL) and the International Electrotechnical Commission (IEC).

Performance requirements:

The standard specifies the performance requirements for circuit breakers, including their ability to operate reliably in various operating conditions and their resistance to arcing and voltage surges.

Safety features:

UL 60947-2:2020 requires that circuit breakers have a high level of safety, including the ability to detect and interrupt over-currents and the use of protective features to prevent electrical hazards.

Reliability requirements:

The standard specifies the tests that manufacturers must conduct to ensure the reliability of their circuit breakers, including tests for their resistance to aging, short-circuits, and over-currents.

Electrical.