What is UL 60947-9-2:2020?

The world of electrical engineering and regulations can often be complex and challenging to navigate. In this article, we will explore the significance of UL 60947-9-2:2020, a standard that plays a crucial role in ensuring the safety and reliability of low-voltage switchgear and controlgear assemblies.

Understanding UL 60947-9-2:2020

UL 60947-9-2:2020 is an internationally recognized standard developed by Underwriters Laboratories (UL), a leading global safety science organization. This standard specifies the requirements for low-voltage switchgear and controlgear assemblies with a rated voltage not exceeding 1000 V AC or 1500 V DC.

One of the primary objectives of UL 60947-9-2:2020 is to ensure the safe and reliable operation of electrical equipment. It provides guidelines for the design, construction, and performance of low-voltage assemblies and sets forth requirements for testing and verification of their compliance.

Key Features and Benefits

UL 60947-9-2:2020 covers a wide range of aspects related to low-voltage switchgear and controlgear assemblies. It addresses essential features such as temperature-rise limits, short-circuit withstand strength, and the ability to withstand specified operating conditions.

By complying with UL 60947-9-2:2020, manufacturers and users of electrical equipment can have confidence in the safety and reliability of their products or installations. The standard helps to minimize the risks associated with electrical faults, ensuring the protection of personnel, property, and the environment.

Testing and compliance

UL 60947-9-2:2020 outlines specific testing procedures to determine the performance and compliance of low-voltage switchgear and controlgear assemblies. These tests evaluate various factors, including electrical and thermal properties, mechanical strength, and resistance to environmental conditions.

Compliance with UL 60947-9-2:2020 is essential for manufacturers seeking international recognition and approval for their products. Additionally, adherence to this standard provides end-users with confidence that the equipment they are using meets the highest safety standards.