What is UL 294B

UL 294B is a standard that specifically addresses the requirements for access control system closers and holders. It provides guidelines and testing procedures to ensure the safe and reliable operation of these systems. In this article, we will explore in detail what UL 294B entails and why it is important.

History and Purpose

The UL 294B standard was first published in 2016 by Underwriters Laboratories (UL), a leading independent safety certification organization. The purpose of UL 294B is to establish criteria for the evaluation of access control system closers and holders that are used in conjunction with doorsets. It sets requirements for their performance, construction, and reliability to ensure the safety of building occupants.

Prior to the introduction of UL 294B, there was no specific standard available for evaluating access control system closers and holders. This resulted in varying quality and performance levels across different manufacturers' products. The UL 294B standard was developed to address these concerns and provide a unified benchmark for product safety and performance.

Key Requirements of UL 294B

To comply with UL 294B, access control system closers and holders must meet a range of stringent requirements. Some key requirements include:

Strength and durability: Closers and holders must be able to withstand specified levels of force without failure or significant damage.

Electrical safety: Electrical components used in the access control system must comply with relevant safety standards to prevent electric shock hazards.

Reliability under fire conditions: Closers and holders must continue to operate as intended during a fire emergency to facilitate safe evacuation.

Compatibility: The closer or holder must be suitable for use with the specific doorset and not interfere with its normal operation.

Importance of UL 294B

UL 294B plays a critical role in ensuring the safety and reliability of access control systems. By setting uniform standards for product performance and construction, it helps to eliminate substandard products from the market and reduce the risk of malfunctions or failures that could compromise building security.

Compliance with UL 294B also provides reassurance to end-users, architects, and building owners that the access control system closers and holders they choose meet industry-recognized criteria for safety and reliability. It enhances trust in these products and promotes overall building safety.

Furthermore, UL 294B certification can give manufacturers a competitive edge by demonstrating their commitment to quality and compliance with recognized safety standards. It allows them to differentiate their products in the marketplace and appeal to customers who prioritize safety and reliability.