Mark for UL functional safety certification service

Mark for UL functional safety certification service

In addition to a typical safety certification, UL also certifies certain products for functional safety. Based on a product’s application and usage, the functional safety assessment is performed in accordance with the requirements of a published and relevant functional safety standard. Functional safety is the part of overall safety that depends on the correct functioning of safety-related control systems and software. A functional safety investigation involves the evaluation of a safety critical circuit(s) in accordance with declared safety ratings relating to software, hardware, environmental stress factors (such as EMC) and safety lifecycle management processes. UL’s certification marks for functional safety are normally restricted to products that are intended to be used in a functional safety application. The required marking elements also include the aforementioned safety level declared by a product manufacturer. UL’s Marks for functional safety certification indicate that a product provides functions to a user that can be applied in a safety-related way. Functional safety standards define safety levels as safety integrity level (SIL), automotive safety integrity level (ASIL), performance level (PL) or class. In conjunction with one of UL’s functional safety certification marks, a manufacturer identifies the functional safety standard and the SIL, ASIL, PL or Class to which a product has been evaluated. There are various marks for functional safety certification to indicate intended use in the United States and/or Canada and/or Europe. Canadian and European safety requirements may be somewhat different from U.S. safety requirements. All of the products carrying these marks are covered by UL’s Follow-Up Services program to determine that they continue to be manufactured in compliance with UL’s requirements. A UL Functional Safety Listing Mark appearing on a product typically consists of the following required elements.

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