What components are allowed to be used in a ul 508a listed panel 9 Industrial control panels incorporating intrinsic safety barriers and intended for accepted when installed within an UL 508A Industrial Control Panel? 17. Question: Components that are not UL Listed or UL Recognized can never be used in a UL listed panel. 2 I am working with a panel shop that claims to be a UL508 shop and they are giving me a hard time about a radio we use that is not UL listed. Upon completion of the panels the non UL shop will ship the panels to the UL shop for inspection and applying the UL sticker if it passes inspection. For example if that wording is on cable, I'd be concerned about it not being listed by any NRTL, because the listing process also addresses things like temperature ratings, flame propagation, chemical resistance etc. What Is a UL-Listed Panel Shop? Working on a panel dealing with UL labels Are components that are not UL listed or UL recognized ever be used in a UL listed panel? Menu. Re: UL Listed Terminal Blocks The reason is the difference between a violation and no violation. 14 LV Fire Pump Control Panels IEC 62091 ANSI/UL 508 and ANSI/UL 218; CSA C22. - A component that is not in Table 1 of Requirements for Components used in Industrial Control Panels (formerly Table SA 1. 1: Equipment intended to be connected to a source of how you can add Eaton UL registered and listed surge protective devices (SPDs) to your UL 508a panel without needing to update your UL file, immediately adding value to your products. I've called Tripplite, APC, Eaton and they all say they use UL 1778 not UL 508. AHJs rather than take on the responsibility of approving equipment themselves, as defined in 110. 1 75. There are specific detailed procedures by which a UL508A listed panel shop can add an "unevaluated component" to a control panel assembly, and still list the entire assembly. Listed components (UL symbol in a circle) can be used for their intended purpose somewhat freely by a UL-508A listed shop. Context is important here. 1 Sección 1: Información general del programa e introducción a ULWhat two (2) components are allowed to be used in a UL 508A Listed panel?Any component that has a UL Listing markAny Recognized ComponentA Listed Component that has an intended use of industrial control equipmentRecognized Components In what 3 types of circuits can unevaluated components be used in a general use UL 508A panel? 1. , Feeder Circuit and more. The UL Mark on a component means that UL has evaluated and Component Selection: Specific requirements for properly selecting and using electrical components within industrial control panels to ensure their safety and reliability. , UL 508A design standard for safety for _____ _____ _____ intended for construction of UL Listed panels built by panel builders. Low Voltage Limited Energy Circuit, C. Even if I move up to 1/2 Watt Discharge resistors. This document will be updated on an as-needed basis as changes UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel? Any component that has a UL Listing mark Any Recognized Component A Listed Component Answer to Solved With UL 508A in mindWhat components are allowed to be | Chegg. 1. It is UL Listed and may also contain UL Recognized Components installed in accordance with the UL Listing requirements. If a construction element is identified as ‘optional’ or ‘may be provided’ it is not mandatory and doesn’t need to be included in the construction. A component that According to UL 508A, components that are not explicitly covered can indeed be added to the certification process after a thorough engineering review. These tend to be components that are designed so that they will be safe no matter how they are hooked up (within reason). They are saying they can not certify the panel as UL with non UL equipment in it. • Not authorized to bear the UL Listing Mark or UL Classification Marking Method of traceability Components covered under UL’s Component Recognition and Follow-Up Services programs are identified by a Recognized Component marking. The UL Mark on a component means that UL has evaluated and tested samples of this Explanation: Install the component according to the manufacturer's instructions and UL guidelines. The only UL listed 1/2 Watt are for 1MW and up. ***Step 2: Understand UL Recognition*** UL Recognition is a lesser certification than UL Listing, indicating that a component has been evaluated for specific properties. The only way I could convince them was to explain the process of getting a UL listed assembly [submit 2 complete assemblies (1 for NDT & 1 for DT) with all backing design With UL 508A in mind. 1 Where a Listed device is provided in an industrial control panel and specific component requirements are not described in the UL 508A Standard, any Listed component is able to be used. This is no longer the case, now to determine what components can be used on a UL 508A panel, engineers review the online document stored at https://www A UL 508A panel shop is contemplating having a non UL shop build the panels for them at a non UL shop location. Since the requirements in UL 61010-2-201 is identical to IEC 61010-2-201, would Programmable Controllers need to comply with the EMC, Functional Safety and IP requirements of the Standard? 18. After Jan. 8 Equipment intended for use in hazardous locations, as defined in the National Electrical Code, ANSI/NFPA 70, are covered by the Standard for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations, UL 1203. In what section of 508a can you find a list of the standards of the components that are suitable for use in a listed industrial control panel? Section 1; Section 2; Appendix a; Appendix b UL 508A focuses specifically on the construction and installation of industrial control panels, including the enclosure, wiring methods, and component selection. For that, you must use a switch that is listed under UL-98. Fill in your geographic location information and enter “NITW” in the Empty Enclosures for Switchgear Panels IEC 62208 ANSI/UL 50 and ANSI/UL 50E; CSA C22. To find UL panel shops in your area, check out the UL website. Do industrial control panels need to be UL listed? Similar Questions . A UL listed component bears the UL listing mark and has been subject to testing. 2) Added power supplies evaluated to UL Standards UL 508 or UL 61010-1 and UL 61010-2-201 for CCNs NMTR, NMTR2, NRAQ and NRAQ2 to Table SA1. SPECIFIC REQUIREMENTS FOR COMPONENTS USED IN INDUSTRIAL CONTROL PANELS (Formerly Supplement SA of UL 508A) 1 Listed Components 1. For a control panel to carry the UL 508A Listing Mark, the panel must contain only UL recognized and listed components. Identify the four products that can be used in a UL Listed panel. Do you have a specific part you need to use that would not be allowed? A lighting system assembled from the following listed parts shall be permitted: (1) Low-voltage luminaires (2) Low-voltage luminaire power supply (3) Class 2 power supply (4) Low-voltage luminaire fittings (5) Cord (secondary circuit) for which the luminaires and power supply are listed for use (6) Cable, conductors in conduit, or other fixed Through periodic audits of the manufacturers, UL can insure the manufacturer continues to meet the UL requirements for 508A certification. What Does It Mean For a Panel to Be UL 508A Listed? The UL 508A Listing Mark on an industrial control panel indicates that it has been designed and built to UL 508A standards, and has been certified to comply with the UL 508A standard. According to UL 508A, components used in Listed panels must generally be Listed themselves unless specific conditions are Per UL 508A what type of rating can be used for a Surge Protection Device Category Control Number VZCA2 in a feeder circuit of non service equipment. These shops undergo rigorous audits and maintain strict quality control processes to ensure their panels meet UL requirements. each individual panel builder. It is not clear why you are using ul in the first place. UL-508A Component Selection. Having said all of that (and I could go on for many pages), it is a very complex system of standards, testing (which is where UL and others come in) and enforcement So if all of the components were present in the panel when you labeled it, and you are using and wiring them in the same way, I see nothing wrong with it. For an ICP to earn the UL 508A marks all components listed below must be up to the UL standards: UL-508 listed components can be used freely in a UL-508A panel design. However, they charge a lot of money to do this so you are usually better off just using what is already in the standard. In UL 508A, Appendix A specifically provides a list of standards for components that are suitable for use in Listed Industrial Control Panels. ASTM (American Society for Testing and Materials) covers prima With UL 508A in mind. As an end user I am only allowed to use UL Listed components. 3 This equipment consists of assemblies of two or more power circuit components, such as motor The UL 508 listing will be required for an assembly of products, each with different listings. T/F: an open ICP label indicates that the enclosure is not evaluated. They are designed to protect electrical circuits from damage caused by overcurrent or short circuits. Result: Can be used. From the 480 panel breakers, six feeders come into the control panel, land on six sets of distribution blocks, and each distribution block feeds a group of 5-10 UL Type F manual motor starters. Explanation: Maintain documentation of the component's recognition and its conditions of acceptability as part of the panel 4. From UL508A (my bold): 1. For electrical equipment, always look for the It is up to the AHJ to require or not require a UL listing. So far, you also get access to all UL standards that are wholly UL owned. 3, will require the use of a UL Listed device if it is available. Or is it okay as far as OSHA to not have the UL 508A, as long as all components inside are UL listed (as opposed Many panel-building shops have the capability to create UL 508A Listed panels. ” An Unlisted Component is described under the same UL File Number as the end product(s) in which they are used, and they can only be used for other products for the same Applicant under the same UL File Number. In contrast, the industrial control panel shown in Fig. " There are also programs where UL will certify installed alarm systems. That said, UL does not allow "field modifications" without re-inspection. UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Components in Table 1 of Requirements for We are a UL listed panel shop and do our control panels in house for our equipment. There are 2 ways to confirm a parts listing. A UL 508 shop can used recognized parts. Even the control panel builder cannot alter the panel in the field without calling for a re-inspection by UL, a very expensive proposition (but a 3rd possibility by the way). circuit that complies with appendix B 2. 1 UL 508 states: “These requirements cover industrial control devices and accessories, for starting What components are allowed to be used in a UL 508A panel? UL-508 listed components can be used freely in a UL-508A panel design. 120ac/24dcv system 14ga mtw for AC 16ga mtw for DC Both of my GFCI Receptacles are protected by 5amp breakers All UL 508A Standard for Industrial Control Panels Certification Exam Q5 Identify the four (4) products that can be used in a UL Listed panel A component that is not in Table 1 of Requirements for Components used in Industrial Control Panels (formerly Table SA 11) but is UL Listed for use in Industrial Control Equipment An unisted component that is described in your Our UL inspector would not allow us to use a UL 1778 listed power supply. 2 has been evaluated as a complete product. Exception No. UL 508A listed panels include which two (2) of the following? a)Panels intended for general use b)Panels installed in an ordinary location c)Panels installed in a hazardous location d)Panels intended for connection to circuits residing in a hazardous location While the term UL 508A certification is used frequently, UL Listing is the specific certification. The relevant sections UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Components in Table 1 of Requirements for Components used in SPECIFIC REQUIREMENTS FOR COMPONENTS USED IN INDUSTRIAL CONTROL PANELS (Formerly Supplement SA of UL 508A) 1 Listed Components 1. 3 This equipment consists of assemblies of two or more power circuit components, such as motor controllers In a General Use UL 508A panel, unevaluated components can be utilized in A. Table 1 of requirements for components used in industrial control panels (formerly table SA 1. 94. 2(a) Listed Pressure Wire Connectors UL486A/B ZMVV (Listed) Pressure wire UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Components in Table 1 of Requirements for Components used in I once had a client that insisted on a UL listed assembly when all they needed was an assembly containing UL listed components to satisfy their insurance underwriter. If you have no UL listed options and it does need to go in a listed panel assembly, then you can still use it, but the panel builder would have to follow strict UL guidelines for installing it. Unless otherwise specified in a component’s published information, a Recognized Component UL 508A Industrial Control Panels Industrial Control Panels are rated: 1000V or less 40 C ambient UL 508A Standard does not include: Panels for Hazardous Locations “NRBX” which are covered under UL698A Panels Containing Intrinsic Safety Barriers and Intended for Circuits in I am trying to locate UL Listed 2. The first is where UL lists various equipment to specific standards. Location NC Occupation EE. Not all control components are listed, some are recognized. Field installation is allowed. The 194E is listed under UL-508 as a "motor load" disconnect switch, meaning its only intended use is as the last disconnecting device right before a motor load. (Hint Refer to Table 2 in Requirements for Component used in Industrial Control Panels (formerly Table SA 11)) Type 1 Type 2 Type 3 All of the above connectors for the use in a UL 508 compliant panel. The relevant sections UL 508A has a section in Part 2 that covers the electrical requirements for industrial control panels used for industrial machinery. power circuit 3. Option A: A component that is not in Table 1 but is UL listed for use in industrial control equipment. We are not a UL shop. Use of TCI reactors on UL 508A panels Under prior UL 508A requirements, TCI recognized reactors had to be listed within a customer’s UL 508A Procedure in order to be used on a UL 508A panel. 【Solved】Click here to get an answer to your question : UL 508A Standard for Industrial Control Panels Certification Ex Identify the four (4)products that can be used in a UL Listed panel. Since they be understood that a UL Listed industrial control panel The short answer is NO. ***Step 3: Review UL 508A Requirements*** According to UL 508A, components used in Listed panels must generally be listed themselves unless specific conditions are met. <br /><br />## Step 2: Review UL 508A structure<br />- UL 508A is the Standard for Industrial Control Panels. Allowable resources for use during the exam are: Print or electronic copy of the UL 508A standard, 3rd ed, dated April SUPPLEMENT SA FOR COMPONENTS USED IN INDUSTRIAL CONTROL PANELS (Formerly Supplement SA of UL 508A) 1 Listed Components 1. The UL Listed label is evidence that the manufacturer submitted complete product samples for testing, witnessed by UL representatives . Circuit that complies with Appendix B: This type of circuit adheres to specific guidelines and regulations set out in Appendix B, ensuring the components used are So there are two levels of products you can use as a UL 508A shop. New posts 2017, and March 19, 2018, a proposal to remove Supplement SA from UL 508A and relocate the information therein to a UL LLC website achieved and Question: UL 508A Standard for Industrial Control Panels Certification ExamQ8The Category Control Number for an enclosure heater is KSOT2. UL (Underwriters Laboratories) is a global safety science company and the largest independent testing laboratory in the U. So You can use a UL 489 or UL 1077 breaker within the VFD enclosure for motor protection, a UL 489 breaker in the source panel (or how you can add Eaton UL registered and listed surge protective devices (SPDs) to your UL 508a panel without needing to update your UL file, immediately adding value to your products. Final Answer. Every device that is UL listed has 2 pieces of information attached to it. This has had me stumped and doing a ton of searching to find replacement for the resistors when there may be a simpler way around it so we can get this If a control panel is UL listed (or listed by any other NRTL), the NEC applies only to the installation of the panel, not the internal components that were part of the UL listing. 2 No. UL 508A panel shops are specialized facilities that have been certified to build industrial control panels in compliance with the standard. Class 2 circuit. Category Control Numbers Four to Five digit alphanumeric code Identifies product categories in UL’s Listed Product and Recognized Components Directory Component Selection UL-508 listed components can be used freely in a UL-508A panel design. Addresses compatibility, listing and certification, what components are allowed to be used in a ul 508a listed panel? Your solution’s ready to go! Enhanced with AI, our expert help has broken down your problem into an easy-to-learn solution you can count on. UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Components in Table 1 of Requirements for that can be used in Specific Dry Location Panel Grounding Applications in UL 508A or UL508 panels and other permitted Grounding Applications subject to further UL investigation. Some joint UL/ANSI or other joint standards are only available for purchase but, for instance, I can get UL489 for circuit breakers. UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Components in Table 1 of What components are allowed to be used in a UL 508A panel? Examples would be DC power supplies, industrial PCs, and PLC components. For an ICP to earn the UL 508A marks all components listed below must be up to the UL standards: Can a panel containing only one control device inside an enclosure be labeled with a UL 508A enclosed industrial control panel label? B. I am probably going to lose the contractor on But under no circumstances are you allowed to modify the INTERNAL wiring of the control panel in the field, to do so violates the UL listing of the panel. as long as the branch circuit protection equipment for the radio device is UL listed, the panel can be certified; even As a listed panel shop, you get access to the UL 508 Industrial Control Panel standard. z. UL Listed Industrial Control Panels are constructed and marked to facilitate installation How do I determine if components are acceptable for use within my requirements for the following panels are contained in UL 508A: Overhead crane control UL Standards Listing for Industrial Control Products Topic Page Summary of Changes 2 Introduction 3 UL 98 3 UL 489 4 saving panel space UL 489 DIVQ E197878 Circuit Breakers, Molded Case, and Circuit-breaker Enclosures 30. In fact, using a UL 508 switch as anything other than a manual motor controller is a direct violation of NEC requirements. What is UL 698A? ection 1 General Program Information and Introduction to UL UL 508A Standard for Industrial Control Panels Certification Exar Q15 What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Similar Questions . Option B: An unlisted component that is described in your procedure. These tend to be components that are designed so that they will be safe no matter how they are For a control panel to carry the UL 508A Listing Mark, the panel must contain only UL recognized and listed components. We got our UL listing by removing the UPS and plugging the pigtail into the receptacle and stating the UPS is a optional accessory. Result: Proper installation ensures the component functions correctly and safely within the panel. how you can add Eaton UL registered and listed surge protective devices (SPDs) to your UL 508a panel without needing to update your UL file, immediately adding value to your products. References in this document to sections or paragraphs in UL 508A are understood to be to the third edition of the standard with revisions dated July 3, 2018. It is easier to do so if the components are UL recognized. According to UL 508A, unevaluated components can be used in a general use UL 508A panel in the following types of circuits: accepted when installed within an UL 508A Industrial Control Panel? 17. S. General commodity commercial fasteners do not fall under the umbrella of products that would require a UL listing or ICC-ES report. LISTED products can be used without additional procedures or paperwork. Examples would be DC power supplies, industrial PCs, and PLC components. What is the maximum input supply voltage that can be in a UL 508A listed panel? 1000 volts 1. No, the heater must be a listed component to be acceptable in a Listed panel. All of my components are UL listed. Step 3: Select the Circuits Based on the analysis in Step 2, the three types of circuits in a General Use UL 508 A panel where unevaluated components can be used are: Low Voltage Limited Energy circuit (LVLE) Circuit that complies with As such, the UL Listing Mark on an Industrial Control Panel is widely recognized and accepted by municipal inspection authorities. Option 2: No, the heater must be a listed component to be acceptable to use in a Listed panel. Class 2 Circuit types. Recognized components (UR symbol with the R backward) means they can ONLY be used in combination with another listed or recognized component in a narrowly specific way. The UL shop will furnish all materials. What is Necessary for a Control Panel to be UL 508A Certified. Before manufacturing can begin, the panel must first meet UL 508A standards at the design level. Is it acceptable to use a Programmable Controller that has been certified to UL 508 Industrial control panels are purpose-built to control nearly all machines and other equipment. Step 5: Document Usage. Also, if a design specification is indicated as a minimum or maximum, the construction can include greater read more The exam must be completed in one sitting within a 4 hour time limit. 1) You can use ANY product that is UL Listed under one of the dozens of UL file numbers in the 508A documents. The Listing Mark may be applied to a wide variety Having set up a UL-508 Listed panel shop for a fella I "used to work for", I recall the 508 being specific to assembled control panels for a particular purpose. Defining the Application UL 508 UL 508A Understanding UL 508A Panel Shops. 1 and No. UL Listed is for whole products, It shows that the panel complies with an acceptable safety standard. Section 3 Control Circuits Ratings Markings and Enclosures Friday July 18 2025257 PM UL 508A Standard for Industrial Control Panels Certification Exam Q4 In what three (3) types of circuits can unevaluated components be used in a General Use UL 508 A panel Class 2 circuit Power circuit Circuit that complies with Appendix B Low voltage limited There is a large motor control panel that is set up like this. A customer with a 14,000 sq ft house has 16 fixtures that are not UL listed they want me to install. 1 31. 26, 2012 and up to Jan. UL-508 recognized components can be used in a UL-508A design, but only within the manufacturer’s installation specifications. 1), but is UL Listed for use in What is Necessary for a Control Panel to be UL 508A Certified. True False Sounds a little fishy. Those usually make it not worth doing if there The other common scenario is having a part number, but not knowing for sure if it is UL listed and if that listing is acceptable for use under UL508A. 2 Industrial Control Panels IEC 61439-1; IEC 61439-2 and IEC 60204-1 ANSI/UL 508A; CSA C22. He said it had to have a UL 508 listing. A component that is not in Table 1 of Requirements for Components used in Industrial Control Panels The question asks about the components allowed to be used in a UL 508A listed panel. The two primary areas of focus in a UL-508A design are component selection and panel design. Step 3: Review UL 508A Standards. The advantage of UL508A is you can take a recognized component and use it (they cost less than a listed part) Guidelines for the Surge Proctive Devices Used in ICP UL Certification Requirement Decision This Certification Decision is prepared and published by UL. low voltage limited energy circuit 4. UL 508A Standard for Industrial Control Panels Certification Exam What two (2) components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control equipment Recognized Components in Table 1 of Requirements for Components used in UL 508A Standard for Industrial Control Panels Certification Exam Identify the four (4) products that can be used in a UL Listed panel. It is normative for the applicable UL Product Certification Program(s); however, it is currently not part of the UL Standard(s) referenced below. The UL standard for labeling took effect in April 2006. you are building a 24V panel and this panel UL 508 is the standard for industrial control equipment, whereas UL 508A is for industrial control panels. According to the standard UL 508A, which covers the safety requirements for industrial control panels, disconnects should be grouped together in the same location. Panel Design and Spacing When designing industrial control panels for UL 508A compliance, The content model of ul does not allow an a child, in any version of HTML. I explain to them that my job is 100% safety first, and I will not be installing anything non listed. Key Takeaways: UL Listed vs UL Certified. Step 2: Determine which types of circuits can unevaluated components be used in a general use UL 508A panel. 2K Ohm, 1/4 Watt, 250V, 5%, and am unable to locate them. In a nutshell, the device usually must be wired behind a Class 2 transformer and protected by a GFCI. Here are some of the requirements necessary to achieve UL 508A Answer to Do panels with multiple disconnects always have to be. Within line of sight of the control panel, there are 480V and 208V panelboards. Our AHJs don't allow recognized components by themselves. If an Unlisted Component will be used for products found in different UL File Numbers, then it The definition of "acceptable" indicates what is acceptable to the Assistant Secretary of Labor, This would appear to be a blanket requirement for all industrial control panels at a workplace to be built by a UL 508A panel shop. 1 Where a Listed device is provided in an industrial control panel and specific component requirements are not described in Part 1 (General Use Industrial Control Panels) of the UL 508A Standard, any Listed component is able to be used. Harmonic filters are available as both UL 508 and UL 508A as they fall into both When designing industrial control panels for UL 508A compliance, the panels must have a design plan and clear labeling of wires, components, and other information such as environmental rating and short circuit rating. While UL 508 covers individual control equipment, UL 508A covers certification to North American safety standards to the purchaser of the panel. 6. What's new. what 2 components are allowed to be used in a UL 508A listed panel. If a component is not listed, it may still be acceptable if it is described in the customer's ## Step 1: Understand the problem<br />- The problem asks for the section in UL 508A where a list of standards for components suitable for use in a Listed Industrial Control Panel can be found. 26, 2012, listed control panels were evaluated to UL 60947-4, unless a customer specifically requested it be evaluated per UL 508. The other involved UL allowing certain shops / businesses to apply the UL mark to their work. If there is a UL I have the "UL Standard for Safety for Industrial Control Panels, UL 508A Third Edition, Dated April 24, 2018". 2) You can also use UL Recognized Components , differentiated by the backwards UR symbol; here is a case where both listed and recognized components with the same UL Standard can be used. In other words, it is not specifically the PANEL that is UL-508A listd, it is the shop that assembled it. UL 508A MTR Exam v3 1 Section 2 Enclosed Panels and Power Circuits UL 508A Standard for Industrial Control Panels Certification Exam Q3 What type of rating can be used for a Surge Protection Device Category Control Number VZCA2 in a feeder circuit of non-service equipment (Hint Refer to Table 2 in Requirements for Component used in Industrial Control Panels Prior to Jan. Before a control panel can carry the UL508A Listing Mark, it must include only UL Question: Examen UL 508A MTR v3. 1. components are allowed to be used in a UL 508A Listed panel Any component that has a UL Listing mark Any Recognized Component A Listed Component that has an intended use of industrial control CONTROL PANELS (Formerly Supplement SA of UL 508A) 1 Listed Components 1. There are three main governing bodies that cover specifications for fasteners. UL Product iQ® Database, is an online search engine platform that helps users find UL Listed and UL Certified products, components and materials. Product Category (CCN): NITW Standard Number: 508A A recognized component can only be used by a panel mfg or UL shop. The UL 2237 standard is the applicable standard for testing of industrial connectors in Q12 In what section of 508A can you find a list of the standards for the components that are suitable for use in a Listed Industrial Control Panel? Section 1 Section 2 UL 508A Standard for Industrial Control Panels Certification Exar Is it going into a UL listed control panel or other UL listed gear? If so, yes it will need to be listed. 263 acceptability is determined by UL LLC. panel would not be considered a UL Listed industrial control panel. Forums. This application note is based on the official UL document Requirements for Components Used in Industrial Control Panels (February 4, 2019). 1 Where a Listed device is provided in an industrial control panel and specific component requirements are not described in Part 1 (General Use Industrial Control Panels) of the UL 508A Standard, any Listed component is able Study with Quizlet and memorize flashcards containing terms like UL 508A design standard for safety for Industrial Control panels intended for construction of UL Listed panels built by _____ _____. So when UL has different rules, such as wire sizing, it trumps the NEC because once that panel is listed, the installer can connect it as long as HIS connections meet Unexamined components can be used in Class 2 circuits if they comply with the relevant safety standards. The procedure may contain additional construction requirements and specific UL Recognized Components or Listed assemblies that have been found There are several ways to go about selecting hardware that is listed for use in a UL508A enclosure. 1) has conditions of acceptability that a terminal block must be suitable for factory and field wiring. com 2) Added power supplies evaluated to UL Standards UL 508 or UL 61010-1 and UL 61010-2-201 for CCNs NMTR, NMTR2, NRAQ and NRAQ2 to Table SA1. Feb 4th 2019 UL508A Requirement for Components (“SA List”) Sec14 Grounding Terminals 14. 26, 2017, new control panel assemblies are UL is the largest and most well-known NRTL in the U. Explanation: UL Listed components are generally acceptable for use in UL Listed panels. 21. This is the "UL lable" that most folks think of. The Category Control Number (CCN) and the E-file number. If the AHJ requires a UL Listing then when 2 or more components are assembeled in 1 box, it falls under UL508A, as an assembly and would have to be built by a UL approved Panel house 1. class 2 circuit In WA State you can make a panel with listed components as long as its inspected on a permit. An example Similar Questions . I have not found there is much in the way of components I want to use that are not already allowed. Home. Step 2: Locate Component Standards. With UL 508A in mind. ***Step 3: Interpret the Statement*** The statement implies that components not UL Listed or UL Recognized cannot be used in a UL Listed panel. My question is the separation of different circuits in a control panel. As there are a multitude of different components that can end up being used within, or even on a UL 508 panel, each category of these components has its own testing standards. No, the heater must be a listed component to be acceptable to use in a Listed panel: This implies that only components that are themselves listed can be used in a INDUSTRIAL CONTROL PANELS (Formerly Supplement SA of UL 508A) 1 Listed Components 1. what two components are allowed to be used in a UL 508A listed panel Any component that has a UL Listing mark Any recognized component a listed A UL 508A Panel Listing allows a panel shop to build controls that comply with UL 508A safety design guidelines. UL 508A, the Standard for Safety For Industrial Control Equipment, covers industrial control and related devices rated 1500 volts or less that are used for starting, stopping, regulating, controlling, or protecting electric motors. Underwriters Laboratories plays an important role in developing safety standards and certifying that products comply with those standards. Can a terminal block that has FW code 1 Hello Guys, Im new to this forum and looking for some help. <br />- It includes various sections and appendices that cover UL 508A requires that components used in listed panels must also be listed components, unless specifically allowed by the customer's procedure and conditions of acceptability. Jun 29, 2021 #2 Short answer: No. Is a component selected from this category acceptable to use in a Listed panel?Yes, if it is described in the customer's Procedure and the Conditions of Acceptability for the component are metNo, the heater must be a listed As an electrical contractor in the US, we are not allowed to use non listed fixtures and devices. The search function supports keyword searches by file number, product type, category control number (CCN), fire-resistive design or assembly number, and model number. The correct answer is 1) Circuit breakers and fuses. Search for the part number or a portion of the In what section of UL 508A can you find a list of the standards for the components that aresuitable for use in a Listed Industrial Control Panel?Section 1Section 2Appendix AAppendix B Your solution’s ready to go! UL certified assemblies are intended to be constructed as shown in individual designs. 1 for Section 42; 3) Added a note for Information Technology Equipment Power Supplies that have been evaluated for use at 40°C to Section 42, and power supplies evaluated to UL 62368-1; Question: UL 508A Standard for Industrial Control Panels Certification Exam In what three (3) types of circuits can unevaluated components be used in a General Use UL 508 A panel? Circuit that complies with Appendix B Low voltage The manufacturer must ensure that any non-UL listed components used in a UL listed product do not compromise the safety of the product and comply with all applicable standards and regulations. The relevant sections SPECIFIC REQUIREMENTS FOR COMPONENTS USED IN INDUSTRIAL CONTROL PANELS (Formerly Supplement SA of UL 508A) 1 Listed Components 1. true. 1 Listed Industrial Control Panel Enclosure with Ventilation Opening UL 508A NITW Location of ventilation opening with respect to components installed within enclosure shall comply with 21. If any power components are different than what control circuit components. Step 2: Evaluate Option B. Both circuit breakers and fuses are crucial for the safety and functionality of electrical panels. SB allows the manufacturer of the industrial control panel to achieve the required SCCR by using power circuit components that have been tested by the component manufacturer for a high fault rating and incorporating them into the What can be used in UL 508A Control Panel • Category Control # Applying the Standard. bwat EE. Appendix A One of our clients wants to use some non UL Listed/Recognized components in the Panel, I know as per the Appendix B of the UL508A standard, we are allowed to do so, but my question is that for a non-listed/recognized enclosure lamp which is powered by secondary side of a control transformer @ 115V, Non-listed components are not allowed for use unless the control panel manufacturer has been granted an exception for use. Circuit that complies with Appendix B, B. , so it's entirely possible that an AHJ may reject it if you cannot provide reasonable "3rd party" proof of those issues. 1 for Section 42; 3) Added a note for Information Technology Equipment Power Supplies that have been evaluated for use at 40°C to Section 42, and power supplies evaluated to UL 62368-1; 2. UL certifies individual components as either UL UL 98 components can be used to replace comparable UL 508 components, but the opposite isn’t true. Homework Help > Questions and Answers. VIDEO ANSWER: This is a standard for the industrial control panels so it provides guidelines for the construction installation and also the use of these panels, now you will find out 8a listed panels are panels that have tested and also certified. If the second image is not visible initially, that surely depends entirely on style sheets and scripts involved. You need to wrap the a element inside an li element, if you wish to have it inside a ul element. Is it acceptable to use a Programmable Controller that has been certified to UL 508 For example, NEC 409 (the “70” is actually an NFPA code) covers Industrial Automation Control Panels that are intended for general use in ordinary locations using 600V or less. Purchasing UL 508A Listed control panels helps ensure safety and provides several other noteworthy advantages. All components in a UL-508 listed panel must bear the "UL" designation (STICKER) or if you are using "UR" components you must de-rate them to 50% of what they are listed for power wise. You cannot use them as a general or "main" disconnect for a panel with a mixture of loads and devices. For example, there are UL-listed "panel shops" and "sign shops. Basically, if you piece together an OCPD combo and enclosure it needs to be fabricated by a UL 508 recognized shop. In our control panel we have a class 2 power supply supplying power for a SICK safety controller and power to various safety sensors and other devices. The requirements in UL 508A may not cover all and the most current requirements for industrial UL 508 can be viewed as a product level specification. Industrial control panels covered by UL product category NITW (Industrial Control Panels) are factory-wired construction requirements contained within UL 508A, the UL Standard for Safety for Industrial Control Panels. Only very large shops can afford the investment required to design UL 845 Certified panels. We recently got a contract to build a UL 508a control panel. Their mission is to test products and panel would not be considered a UL Listed industrial control panel. New posts Search forums. UL 508 designs can be optimized for cost; UL 508A designs are more flexible but may be more expensive. UL 508A establishes guidelines for the product as well as conser-vative design rules for interconnects, fusing and protection used in the product. For electrical equipment, always look for the Review the UL 508A standard to determine where component standards are listed. Our AHJ's know the difference. kfrmbzy fbiwf vgthale rlsv mhbc lmyza bmjs enwyj fpzfu bdkef