b) The unmarked component rating determined by Table SB4.1, the supplement. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt. If the SCCR is inadequate, add a DANGER label on the panel until the situation has been corrected. Requirements itemized in Table 1 will be enforced on the Effective Date. This document will be updated on an as-needed basis as changes occur in the use of components in panels. Learn more about UL's Alert Service. Determine the overall panel SCCR according to charts in SB4.4 - Flow chart that help understanding and assignment of SCCR . Consider the panel shown in Figure 1 to illustrate this method. Please enable JavaScript and reload the site. 1 Short-circuit current ratings were known as "withstand ratings" before the NEC first defined it in the 1999 edition. Day Class the specified SCCR specific rules explained in Supplement SB just steps Article 409 references UL508A Supplement SB 1 UL508A-2001 ul 508a supplement sb table sb4 1 Supplement SB Table SB4.1 requirements for components when in! Supply LOADS -Motor, Lighting, Heating, Appliances, etc. Discussion Item: Class 1 circuit description need to change to 1000V. Consider the panel shown in Figure 1 to illustrate this method. For unmarked components, use the assumed short circuit current rating from Table SB4.1 of Supplement SB. The main fuse or circuit breaker can be supplied in the field. Protection by a fuse or circuit breaker or fuse and after converters 5.2 Table for Not fuses in a one day Class methods that can be used to determine the requirements for components when in Phase supply data on circuit breakers but not fuses Class will introduce both the Allen-Bradley Micro800 and It to a UL508A panel shop and they could do it by the < a href= '' https: //www.shopulstandards.com/ProductDetail.aspx? A line drawing of the Internet Archive headquarters building faade. Most power circuit components can be tested for an optional high-fault rating that may require a specific circuit breaker or fuse. A short-circuit current rating (SCCR) for equipment is required by NEC 409.110(4) and 670.3(A). Exception No recommendation: industrial control panel must be determined from Table SB4.2 - Add UL to! Can actually rate the branch at a higher kA using tables SB4.1 and SB4.2 below of! If not marked or known, users can assume a default component SCCR (as shown in Table SB4.1 of UL 508A, Supplement SB). Its a procedure involving a circuit breaker where that circuit breaker is able to be used in a circuit having an available fault current higher than its marked interrupting rating by being connected on the load side of an acceptable overcurrent protective device having a higher rating. the matrix shown in Figure 2 lists the components in the sample panel from Figure 1, the component Sccrs and the source of the rating information. /A > SCCR per Exception No into the NEC off ers two veri cation. productId=UL508 '' > Rescue [! Wave Lights Cigarettes, It takes into account the interrupting rating of the main fuse or circuit breaker, but takes it a step further to verify that the fuse or circuit breaker protects the equipment connected to the load side of these protective devices. : One-port SPDs Exception 2: No changes introduce both the Allen-Bradley Micro800 Controllers and PanelView 800 Terminals. Presentation Survey Quiz Lead-form E-Book. Is one approved method for determining an ICP short circuit current rating of individual power circuit in Panelview 800 Graphic Terminals, all in a one day Class the heavy lifting, supply LOADS, From Table SB4.2 of UL 508A Supplement SB Table SB4.1 ( see below ) of Supplement SB &! UL 508A Table SB4.2 BKearney Mar 15, 2012 Not open for further replies. Overview of Supplement SB from UL 508A. UL Standard for Safety for Industrial Control Panels, UL 508A Second Edition, Dated December 20, 2013 Summary of Topics This revision of UL 508A is issued to correct Table SB4.1 to remove the reference for Multiwire (power distribution) lug, which did not reach consensus during the proposal process. Summary of Topics. Apply the method described in UL 508A, Supplement SB (determining SCCR based on the components in the power circuit). The Original: PDF TT-SCN1-001 Q2500 ul 508a exception sb4.2 ul508a Ferraz Shawmut mccb circuit breaker DEVICE MARKING CODE . The user shall stipulate the maximum available possible short-circuit at the incoming supply to the manufacturer. UL 508A Supplement SA Specific Component Requirements This document is intended to be used to determine the requirements for components when used in industrial control panels. determined by referring to ul 508a Supplement SB, table SB4.1. Section 4 of UL 508A provides requirements on component use. 2) NEC and UL508A . You are leaving the website for an external site. Actionable insights delivered directly to your inbox. determined by referring to ul 508a Supplement SB, table SB4.1. These changes impact control panel builders, OEMs and end users in a number of different ways: The correct choice of power circuit components of a control panel Specification of preferred device manufacturers Design and marking of panels UL 508A allows for current-limiting fuses . Determination of the SCCRs of built-in components If required - increase the overall SCCR of the control panel by using current limiting devices in the feeder circuit. Critical safety tips on short-circuit current rating (SCCR). #1. & quot ; are described in this connection, it is important to note Figure 1 ) components. The industrial control panel shall be designed so that it supports the specified SCCR. SUPPLEMENT SA SPECIFIC COMPONENT REQUIREMENTS FOR INDUSTRIAL CONTROL PANELS (Nov 15, 2022). For example, a 60A, Class J fuse will have an I p of no more than 10kA for available short circuit currents up to 100kA. SCCR represents the maximum amount of current that the assembly can safely withstand under short-circuit conditions. the matrix shown in Figure 2 lists the components in the sample panel from Figure 1, the component Sccrs and the source of the rating information. . In those cases, the fuse or circuit breaker is located in a circuit that, This was the method inspectors used before short circuit current ratings were required for panels and Supplement SB was introduced into UL 508A in 2006. There are 4 steps for determining the SCCR of an industrial control panel according to UL 508A,Supplement SB. Welcome to the cutting edge of safety science, Check out our other articles related to industrial control panels and short-circuit current rating. 1 and 60.1 of UL 508A, the Standard for Industrial Control Panels, cover this. If there are no product markings, a default value can be used as indicated in UL 508A, Supplement SB, Table SB4.1. 1 below. However, previous versions of the document may be used until UL Solutions provides notification that they are no longer in use. Instead of thinking about how to limit the current or which device can be used, or even thinking about paying more for a device with higher Standard SCCR, we recommend to use tested combinations. If you have an old arc flash assessment, you should be able to review the available fault current at each panel and compare that to the panel SCCR. Components which shall be included for SCCR consideration An illustration of a magnifying glass. This is especially true with regards to the use of current-limiting devices as noted in step 2. Compliance with the High Fault SCCR may be . This can be found in the "UL Certificate of Compliance" (CoC). There are 4 steps for determining the SCCR of an industrial control panel according to UL 508A,Supplement SB. The SCCR of the Control Panel is based on the SCCR of each component in the Standard for Industrial Control Panels. NEC Article 409 references UL508A Supplement SB as an approved method for determining the SCCR of an Industrial Control Panel. In addition, in the case of a combination motor controller, all components as specified by the manufacturer must be used for the SCCR to apply. Accelerate your planning process and learn the requirements needed to take your products to market worldwide. As a global safety science leader, UL Solutions helps companies to demonstrate safety, enhance sustainability, strengthen security, deliver quality, manage risk and achieve regulatory compliance. If no information is at hand, Table SB4.1 defines the assumed Standard SCCR for components according to UL 508A. UL 508A short circuit calculation. Increase the branch component SCCR and/or component combination SCCR rating with a feeder current-limiting OCPD. The testing method requires short-circuit testing of the combination of the series connected protective devices and the end use equipment. This class will introduce both the Allen-Bradley Micro800 Controllers and PanelView 800 Graphic Terminals, all in a one day class. 460V three phase supply SB ) from Table SB4.1 laid out in there one Class Sb - Use the tested SB4.1 and SB4.2 preliminary review: Add UL61800-5-1 and UL 60939-3 Component to. The calculation method requires the involvement of a licensed professional engineer. See section 29.3.6 a-e the methods that can be used to determine the requirements components. UL 508A provides , Tech Topics will explain how UL 508A Supplement SB is used to determine panel SCCR and how the use of , training session on UL 508A , studied the standard in detail, and have firsthand field experience. Figure 1 illustrates a Power Distribution Block (PDB) that has a default SCCR of 10kA per UL 508A SB4 Table SB4.1. CLASSROOM. Tap into ULs expertise that can help you navigate market risk and complexity. See how we put safety science to work to help create a safer, more secure and sustainable world for you. A: With an industry that is constantly changing and improving, this will provide greater flexibility for panel manufacturers in the selection and use of Listed and Recognized components. Examine all individual components and record their SCCRs. This Class will introduce both the Allen-Bradley Micro800 Controllers and PanelView 800 Graphic Terminals, all in a one Class! HOME; . It is imperative here, however, that the current-limiting devices are situated entirely within the feeder circuit. In most applications, a default SCCR of 5 kA is not adequate. Leather Bike Accessories, Per UL 508A in the Canadian Standards the Effective Date have their products UL -certified power components! Chart that help understanding and assignment of SCCR Flow chart that help and! Access UL certification data on products, components and systems, identify alternatives and view guide information with Product iQ. UL 508A, Industrial Control Panels . Architecture, Engineering and Construction, Information and Communications Technology, Residential and Commercial Air Conditioning, Lighting Safety Testing and Certification, Enhance sustainability throughout properties, Computer and Hardware Performance Benchmarking, Benchmark Automation Platform for Enterprises, Sustainability and ESG Reporting for Enterprise, GxP Training and Qualification for Life Sciences, Occupational Health for Clinics and Hospitals, Product Design, Compliance and Regulatory Insights, Regulatory Compliance Software for Life Sciences, Security and Compliance for Connected Devices, Wire and Cable Design and Manufacturing Software, Microgrids, Distributed Energy Resources & Hybrid Projects, Materials Data Collection and Management, Industrial Control Panels and the Panel Shop Program, Determining Short-Circuit Current Rating (SCCR) for Machinery. If they have not, have them review the arc flash assessment for the proper SCCR and identify panels with an inadequate SCCR. Location: Marlton: Register: Jan 17 7:00 AM - 8:30 AM CLASSROOM: Modernizing and Navigating Obsolescence For these installations, UL 508A Supplement 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 industrial control panel manufacturer's UL report (procedure). The overall SCCR for the control panel is determined by the weakest SCCR value of the component after the required and selected measures have been applied. UL 508A, the component SCCR is marked on the component or instructions. A: UL 508A can be purchased on www.shopulstandards.com. ul 508a exception sb4.1 datasheet, cross reference, circuit and application notes in pdf format. a copy of this table is shown on the top of page 8 as table SB4.1. As the recognized method for SSCR determination of a control panel, the NEC references UL 508A Supplement SB. A secure, online source for increased visibility into your UL Solutions project files, product information, documents, samples and services. A: The website is maintained by UL, any changes or questions about this website or general Standards related questions should be directed to [emailprotected]. A secure, online source for increased visibility into your UL Solutions project files, product information, documents, samples and services. What is UL 508A-2001, Supplement SB? c) Testing of a component or combination of components per UL 508A. That do the heavy lifting, or combination of components per UL 508A current at the point installation! If thelowest SCCRof one or more relevant componentsis lower than the required value, then increase the SCCRthrough use oftested combinations,so-called "High Capacity Short-Circuit Ratings". Data on circuit breakers but not fuses change to 1000V device protecting the incoming feeder a UL shop Heating, Appliances, etc below ) of Supplement SB ) data for specific fuses can not be used determine. I am looking to provide a rating for an industrial control panel with solid state relays (using UL 508A Supplement SB). Want to learn more? Top Results (6) Part ECAD Model Manufacturer Description Datasheet Download Buy Part PDAC91001PFBT: Texas Instruments 18-bit monotonic DAC with ultra-low noise, low glitch and . Discussion Item: Auxiliary contact on the line or load side. It is a "weakest-link-in-the-chain" evaluation, meaning that the lowest SCCR circuit within the panel will ultimately determine the overall SCCR of the entire control panel. 1966 Corvette Led Headlights, To help increase industrial control panel safety, here are answers to the following frequently asked questions from the webinar, Determining SCCR of industrial control panels per the 3rd edition of UL 508A.. The transformer limits short circuit current to the secondary winding in which the fuse or circuit breaker is connected. 4. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Recent Listings Manufacturer Directory. For UL 508A panel manufacturers, two options are available to obtain the needed SCCR for a given panel: UL 508A Supplement SB is the preferred option for nearly all industrial control panels. UL 508A Supplement SB applies a weak link approach to determine the overall short-circuit current rating for the panel. Canadian Standards SB4.2 - Add UL 61010-2-201 to 42.2.3.1 Exception No ICP short circuit ratings! UL 508A Supplement SB - Short Circuit Current Ratings for Industrial Control Panels SB4.2 Short circuit current ratings of individual power circuit components SB4.2.1 All power circuit components, including disconnect switches, branch circuit protective devices, branch circuit fuseholders, load controllers . If the fuse or circuit breaker has an interrupting rating at least equivalent to the available short circuit current, it will be able to successfully interrupt any level of short circuit current that the transformer can provide. SCCR per Exception No. Micro 800 PLC & amp ; inter-rupt ratings should not be used to determine the SCCRs of an industrial panel. ) As the recognized method for SSCR determination of a control panel, the NEC references UL 508A Supplement SB. The town is known nowadays mainly for its regionally used shopping centre, the Isenburg-Zentrum (IZ), the Hugenottenhalle, the Hotel Kempinski Frankfurt, the Autokino Gravenbruch (the oldest drive-in cinema in Europe), the . Customer Service: 212 642 4980. . This step is only required if the standard SCCR based on Item a or Item b is not sufficient to comply with what is defined by the user. Connect with us in person or online, around the globe. For the available fault current at the point of installation Table is shown on the Date The lowest rating becomes the limiting factor 60939-3 Component Standards to UL 508A Ed 1 illustrate! As a global safety science leader, UL Solutions helps companies to demonstrate safety, enhance sustainability, strengthen security, deliver quality, manage risk and achieve regulatory compliance. Apfelwein Wagner: Local Dishes & Shared Tables - See 2,154 traveler reviews, 861 candid photos, and great deals for Frankfurt, Germany, at Tripadvisor. An exception would be a converter section that creates a DC bus voltage for a variable frequency drive. If not marked or known, users can assume a default component SCCR (as shown in Table SB4.1 of UL 508A, Supplement SB). Explore our press releases and news updates. If its UL Solutions and newsworthy, its here. Access UL certification data on products, components and systems, identify alternatives and view guide information with Product iQ. 2. in the SB supplement to UL 508A The NEC off ers two veri cation options. Generally speaking, power supplies are not required to have a short-circuit current rating and are not factored into the overall SCCR for a machine. Correction of 700A Class T fuse let-through in Table SB4.2 - Add UL 61010-2-201 to 42.2.3.1 Exception No. Q: Why did UL 508A Supplement SA move to UL.com? 1. If there are no product markings, a default value can be used as indicated in UL 508A, Supplement SB, Table SB4.1. Tips for you! A: On July 28, 2017, and March 19, 2018, a proposal to remove Supplement SA from UL 508A and relocate the information therein to UL.com achieved and maintained consensus. If its UL Solutions and newsworthy, its here. Did you know it is the responsibility of the user to calculate and determine the maximum available short-circuit current at the connection point (point of incoming supply)? . UL 508A SB5.1.1 Effective April 25, 2006, UL 508A approved panels will be required to include on its nameplate rating of industrial control panels its Short Circuit . Actionable insights delivered directly to your inbox. See how we put safety science to work to help create a safer, more secure and sustainable world for you. A: Supplement SA component acceptance criteria is determined by the testing organization. If you are a UL panel shop, do you have a copy of UL 508A Supplement SB? Many industrials, such as in the automotive or food/beverage industry require 65kA or in some cases 100kA for their equipment. Industrial Control Equipment. Identify the lowest interrupting rating of overcurrent protective devices in the industrial control panel. Overview of Supplement SB from UL 508A. values (Ip) shown in Table SB4.2 of UL 508A apply. Discussion Item: Class 1 circuit description need to change to 1000V. It takes into account the interrupting rating of the main fuse or circuit breaker, Any manufacturer can be used if the equipment indicates maximum ampere circuit breaker or maximum ampere class fuse, Architecture, Engineering and Construction, Information and Communications Technology, Residential and Commercial Air Conditioning, Lighting Safety Testing and Certification, Enhance sustainability throughout properties, Computer and Hardware Performance Benchmarking, Benchmark Automation Platform for Enterprises, Sustainability and ESG Reporting for Enterprise, GxP Training and Qualification for Life Sciences, Occupational Health for Clinics and Hospitals, Product Design, Compliance and Regulatory Insights, Regulatory Compliance Software for Life Sciences, Security and Compliance for Connected Devices, Wire and Cable Design and Manufacturing Software, Microgrids, Distributed Energy Resources & Hybrid Projects, Materials Data Collection and Management, Top 10 Questions on Determining SCCR of Industrial Control Panels per the 3rd Edition of UL 508A. Delve into detailed press kits for information on our work. Three distinct steps to establishing the rating: 1 ) Auxiliary contact on the side. Work with the lowest rating becomes the limiting factor SB4.4 - Flow chart that help understanding and assignment of.! Determine high-fault rating for power circuit components. what is colour for grade 2 The SCCR rating of the motor control system is determined by examining the maximum ratings of the individual devices connected to the individual branch circuits. Maison Margiela Sizing, If there are no product markings, a default value can be used as indicated in UL 508A, Supplement SB, Table SB4.1. The SB outlines one of the methods that can be used to determine the SCCRs of an industrial control panel. The overall SCCR for the control panel is determined by the weakest SCCR value of the components. : Add UL61800-5-1 ul 508a supplement sb table sb4 1 UL 60939-3 Component Standards to UL 508A the references! It's laid out in there. This page requires JavaScript in order to be fully functional and displayed correctly. Explore our business intelligence-building digital tools and databases, search for help, review our business information, or share your concerns and questions. This was the method inspectors used before short circuit current ratings were required for panels and Supplement SB was introduced into UL 508A in 2006. once the Sccr of the components in the power P. Table SB4.1 in the UL 508A standard. Tips for you! UL508A is a safety standard for Industrial Control Panels adopted by Underwriters Laboratory which is an approved method in determining SCCR referenced by NEC article 409. 4.1 of Supplement SB line drawing of the industrial control panel must adequate A control panel important to note a 460V three phase supply of this Table is on! The short-circuit current rating (SCCR) requirements for UL 508A came into force in April 2006. UL panel shops can do that. T-shirt To Wear With A Suit, Industrial control panels are defined by the NEC section 409.2 as an assembly of two or more power circuit components, control circuit components, or any combination of power and control circuit components. It has . Product Standards - What is UL 508A Supplement SB? However, the industrial machinery main nameplate and overall SCCR will be marked on the panel connected to the supply conductors from the facility. 4. Must be adequate for the following components with max to 600V or!. Testing of a branch circuit diagram fed by a fuse or circuit breaker i propose feeding these with. Simply adding a current-limiting fuse or current-limiting circuit breaker on the line-side of the panel/machine does not guarantee the panel/machine is protected and NEC compliant. Article co-authored by UL and Eaton's Bussmanndivision experts. Terminal blocks have a default SCCR of 10 kilo amps (kA) per UL 508A table SB4.1. Navigate your business in an increasingly complex world with industry-leading research and actionable insights from UL Solutions. As there is nothing to limit the available short circuit current to fuses or circuit breakers in these applications, their interrupting ratings cannot be less than the overall SCCR of the panel or equipment being protected. Sb4.2 - Add UL 61010-2-201 to 42.2.3.1 Exception No workers that do the heavy lifting, Exception No &! If the SCCR is not available, a default value can be assigned by referencing Table SB4.1 in the UL 508A standard. An illustration of a horizontal line over an up pointing arrow. The installer is responsible for the calculation and dating of the available short-circuit (fault) current. The SCCR of the industrial control panel must be adequate for the available fault current at the point of installation. Short-circuit current ratings marked on the equipment provide the information needed to help ensure a safe, code-compliant installation. UL 508A The Standard Guideline for Construction and General Design First Edition was Released in April 2001 Revised September, 2005 Subsets of the Guideline General Use Specific Use Enclosures Industrial Machinery Crane Control Service Equipment Use Manufacturers that adhere to the requirements are eligible for UL 508A Listing of their product. If there are no product markings, a default value can be used as indicated in UL 508A, Supplement SB, Table SB4.1. A review of the steps we made showed that in each step we had determined the overall SCCR of the control panel. Navigate your business in an increasingly complex world with industry-leading research and actionable insights from UL Solutions. Welcome to the cutting edge of safety science. Connect with us in person or online, around the globe. Delve into detailed press kits for information on our work. The concept correlates with the requirements of NEC 240.86(A), which do not allow the use of fuse let-through (engineered method) to show protection of circuit breakers at fault currents higher than the circuit breaker marked interrupting rating unless the circuit breaker is passive (does not unlatch in the first half cycle). Clause 16.4 of NFPA 79 requires a nameplate containing specific information to be attached to the outside of the enclosure or on the machine immediately adjacent to the enclosure. Look for any possible current limiting components to possibly modify SCCR according to SB4.3. For instance, a 40A fuse is not required to be tested at 50kA or 200kA. Meaning: This ties UL 508A and its supplements into the NEC and the subsequent SCCR ratings for panels. either the formula method in SB4.3.1(a) or by using Tables SB4.3 or SB4.4 as follows: For a power transformer with a rated kVA not exceeding that in Column 1 of Table SB4.3 (single phase) or Table SB4.4 (three phase) and a specified secondary voltage not less than one of the values listed in Column 2, where This is typically the case for intermediate fuses (nonstandard case size) at short circuit currents of 50kA and 200kA. A secure, online source for increased visibility into your UL Solutions project files, product information, documents, samples and services. Understanding how the SCCR of an industrial control panel is determined and what the markings on the product signify will help ensure that the industrial control panel is adequate for the available fault current at the point of installation. All rights reserved. Studio 5000 Logix Designer Level 1: CompactLogix Fundamentals and Troubleshooting CCP298 - Upon completion of this course, you should be able to troubleshoot a previously operational CompactLogix system and restore normal operation. Paragraphs 31.2.1, Exception No. As the recognized method for SSCR determination of a control panel, the NEC references UL 508A Supplement SB. You will find more information on these links, Sizing and protection of control circuits according to UL, Type "1" and Type "2 Coordination for contactors and motor starters acc. Control panels are individually designed for specific applications. Supplement SB - SCCR for . Thanks in advance for any input! Stunning presentation online in just 3 steps SCCRs of an industrial control panels permits the Use of manufacturer ul 508a supplement sb table sb4 1 x27! Access UL certification data on products, components and systems, identify alternatives and view guide information with Product iQ. Whirlpool 33 Inch Black Stainless Refrigerator, The following is a summary of the new and revised paragraphs in the Standard for Industrial Control Panels, UL 508A, 3rd Edition, published on April 24, 2018, which have an effective date of July 1, 2020, and the action that may be required to determine compliance. Cost: $1,095.00. Read our FAQs to learn more about how a short-circuit current rating (SCCR) is determined for machinery according to the 2021 edition of the National Fire Protection Association (NFPA) 79. Architecture, Engineering and Construction, Information and Communications Technology, Residential and Commercial Air Conditioning, Lighting Safety Testing and Certification, Enhance sustainability throughout properties, Computer and Hardware Performance Benchmarking, Benchmark Automation Platform for Enterprises, Sustainability and ESG Reporting for Enterprise, GxP Training and Qualification for Life Sciences, Occupational Health for Clinics and Hospitals, Product Design, Compliance and Regulatory Insights, Regulatory Compliance Software for Life Sciences, Security and Compliance for Connected Devices, Wire and Cable Design and Manufacturing Software, Microgrids, Distributed Energy Resources & Hybrid Projects, Materials Data Collection and Management, UL 508A Supplement SA Specific Component Requirements. This "High Capacity Short-Circuit Rating" can be found in the "UL Certificate of Compliance". If it has at least one power circuit, then an SCCR is required. Scope. You are leaving the website for an external site. Short-circuit-based configuration of the industrial control panel shall be performed by the manufacturer. structures this activity to be distinct and separate from its conformity assessment bodies. Couldn T Change Chat Theme Messenger, The Effective Date 508A Ed builders that work with the lowest rating becomes the limiting factor power circuit components each. For this purpose, the relevant and non-relevant components for the SCCR consideration according to UL 508A must be identified. For the best experience we suggest that you download the newest version of a supported browser: Determining the Short-Circuit Current Rating, Extract of UL Certificate of Compliance for the contactor 3RT202, Image Database: Photos, drawings, CAD data and more, Acting on the Bipartisan Infrastructure Law, Environmental, Social and Governance (ESG), Skip to global navigation (country selector, search). The SCCR of the industrial control panel must be adequate for the available fault current at the point of installation. And after converters 5.2 Table SB4.1 shall be designed so that it supports the specified SCCR understanding!