V or less 40 c ambient ul 508a standard does not include. Reference manual industrial control panels and electrical siemens. Electrical instruments are covered by the standard for electrical analog instruments panel board types, ul 1437. Ul508a supplement sb4 is the approved method for determining short circuit. Sccr ratings instruction sheets with sccr ratings ul tested combinations pdf. In control cabinets according to ul 508a, power supplies evaluated according to. Ul508a is the ul standard for the construction of industrial control panels. Manual selfprotected combination motor controller ul 508a is a standard covering industrial control panels. This document is intended to be used to determine the requirements for components when used in industrial control panels. Requirements for industrial control panel safety, conductors. Handbook as508a section 508 technical reference guide.
Can use ul 508 suitable as motor disconnect listed switch. A procedure document is written for each individual panel builder. Reference the standard for transfer switch equipment, ul 1008. Ul 508a industrial control panels power distribution and. Ul 508a industrial control panels industrial control panels are rated. A brief history of ul 508a and tips for how control panel.
Using technology to enhance value is an integral part of the postal service s transformation plan. We design, assemble, and install ul certified panels and can bring existing control panels up to ul safety standards, as well as build panels from the ground up meeting the customer requirements, while following ul safety standards. Panels for hazardous locations nrbx which are covered under ul698a panels containing intrinsic safety barriers and intended for circuits in hazardous areas. This guide is designed to cover the most common applications of electrical control products per. Ul certification customers may access published standards materials by using the standards certification customer library sccl at. Ul 508a industrial control panels power distribution and control.
Ul 508a, standard for industrial control panels intertek. For canada, the basic requirements are contained csa c22. All books are in clear copy here, and all files are secure so dont worry about it. This handy web application can help you save both time and effort as you browse the web to find a particular manual.
This guide does not address wire and cable evaluated only for suitability as factoryinstalled. The ul listing mark on an industrial control panel provides evidence of third party certification to the municipal inspection authority and to the purchaser of the panel. Our tools, software solutions and databases help make complex tasks and processes including sustainability, chemical management, health and safety programs, reporting, compliance market access and purchasing decisions easier and more efficient. Ul 508a the standard ul 508a industrial machinery the following types of machines are identified as industrial machinery. Read online ul 508a stars plas book pdf free download link book now. This comprehensive one and a halfday workshop provides technical information to industrial control panel professionals. Latest facebook app for nokia s40 latest facebook app for n. Requirements for industrial control panel safety, implications of ul. Ul 508a control panel design guide the easytodesign guide for selection of electrical control components in control panels used in industrial machinery applications this guide is provided to assist with the design of control panels per ult 508a, specifically for use in industrial machinery applications. Control panel technical guide how to ensure trouble free approval of your ul compliant control panels 8 2 ul standards and circuit design design of a motor circuit as per standard ul 508 part iv and ul 508a chap. Underwriters laboratory implemented ul508a supplement sb to. The nec can be viewed online for free on the website of the nfpa. Ul508a standard for industrial control panels document.
Youll need to understand the transition is taking place and what it means when you see a reference to ul 60947 when you were expecting ul 508. Get more information about how ul 508a affects you, how to select a short circuit current rating, and. General requirements, ul 607301, andor the applicable part 2 standard from the ul 60730 series fulfills these requirements. Ul 508a supplement sa specific component requirements ul. Ul 508a standard for industrial control panels purcell systems. This document gives guidelines to panel builders on various issues including proper component selection, wiring. This is a great resource for people who tend to misplace important documents, especially those that dont see much use. Ul 508a control panel design guide newark element14. It supersedes the previous version of this document dated june 20, 2018 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. Ul certification customers have free access to ul standards, not including ul iec based standards.
This manual contains notices you have to observe in order to ensure your. Ul standards encompass ul s extensive safety research and scientific expertise. Our program makes it convenient to receive a ul certification while allowing maximum flexibility in panel design. Control panel technical guide how to ensure trouble free approval of your ulcompliant control panels 8 2 ul standards and circuit design design of a motor circuit as per standard ul 508 part iv and ul 508a chap. Consult eatons entire control panel design guide according ul 508a catalogue on directindustry. A ul 508a certification is an industrial control panel directive, which electrical inspectors look for. Complete document ul standard for safety industrial control panels. Download ul 508a stars plas book pdf free download link or read online here in pdf. Ul 218 fire pump controllers ul 508a industrial control panels ul 508c power conversion equipment adjustablespeed drive and accessories or modules for use with an adjustablespeed drive ul 845 motor control centers. Ul 508a industrial control panels ul 508c power conversion equipment adjustablespeed drive and accessories or modules for use with an adjustablespeed drive ul 845 motor control centers. Ul 508a covers industrial control panels and industrial panel enclosures operating at 600 volts.
Ul is a global independent safety science company offering expertise across three strategic businesses. Read online ul 508a control panel design guide newark element14 book pdf free download link book now. Compliance with the standard for automatic electrical controls for household and similar use, part 1. Our software provides easytouse tools to collect sustainability metrics, identify trends. Only ul 98 listed switch can be used separate motor disconnecting means. For customers including panel builders, its simply an education process, which is the purpose of this blog post. Seventeenth edition, dated part iii manual motor controllers ul 508a is a standard covering industrial control panels. A ul panel shop can independently design and produce ul panels. Requirements for industrial control panel safety, implications of ul 508a 2nd edition. Ul 508a standard for industrial control panels standards. Download ul 508a industrial control panels book pdf free download link or read online here in pdf. When regulators, specifiers and endproduct certifiers see.
Manualslib is a free, nosign up required library of product. Control panel design guide according ul 508a eaton pdf. Hear ul s principal engineer for industrial control panels, john kovacik, and gain an insiders look at the detailed changes relevant to the new ul 508a 3rd edition. Documents sold on the ansi standards store are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy format. Sa in the second edition of ul 508a, and subsequently appendix c.
Manual motor controllers shortcircuit ratings for ul csat group installations. This guide is not intended to be used in lieu of ul 508a. Requirements of ul 508a for grounding the industrial control panel. Download ul 508a control panel design guide newark element14 book pdf free download link or read online here in pdf. Ul 61010 replaces ul 508 for industrial power supplies. In this example, the 125a circuit breaker is the largest shortcircuit protective device. We will help with the acceptance ul 508a standard pdf download a1d9fc608e share on facebook 31 aug 2010.
This guide replaces neither the standards including ul 508a that electrical. Ul also tests and certifies to these critical industrial standards. As we increase our reliance on electronic information systems to help us manage information and costs, improve service, and carry out our. Manual, magnetic, and solidstate starters and controllers thermal, magnetic, and solidstate overload relays. Article 409 on industrial control panels was added to the nec national electrical code in its 2005 edition. Our breadth, established objectivity and proven history mean we are a symbol of trust, enabling us to help provide peace of mind to all. Ul 508a covers industrial control panels and industrial panel enclosures operating at 600.
How to ensure troublefree approval of your ulcompliant. The workshop is ideal for those who need to understand the safety compliance requirements of the ul 508a standard for industrial control panels, as well as the new requirements found in the national electrical code nec article 409 and ul 508a supplement b. Control panel technical guide how to facilitate the ulcompliant. Industrial and marine installations use a range of conventions, and some multicire cables are numbered rather than colour coded.
Ul 508 manual type e starter, handbetatigte ul 508 type e starter. The national electric code nec and underwriters laboratories ul product standards underwent substantial changes in 2005. Underwriters laboratory 508a overview of ul508a supplement sb ul 508a 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. This site is like a library, you could find million book here by using search box in the header. Spec includes all the information in the ul white book which may be. Our industrial control panel icp shop program allows manufacturers who custom build or massproduce icps to apply the ul marks for the u.
The 508a standard is the premier document for designing and constructing industrial control panels for compliance with the national electrical code. Ul 508a certification description from quality controls, inc. Reference the standard for industrial control panels, ul 508a. To learn more, check out the ul s faq pdf on the transition. This article requires all industrial control panels to be marked with a shortcircuit current rating. Industrial control panels and the panel shop program ul. Ul panels are third party safety approved so other third parties can easily approve them. Plastics machinery, including injection molding, extrusion, blow molding, specialized processing, thermoset molding and size reduction. To help you understand how those changes relate to industrial control panels, eaton offers you our ul 508a resources.
To allow the installer to properly install the panel in accordance to national electrical code nec and other codes, electrical ratings and instructions are to be. Reference manual shortcircuit current rating sccr of. Ul508a is a safety standard for industrial control panels adopted by. The ul 508a listing mark on an industrial control panel provides evidence of third party certification to the municipal inspection authority and to the purchaser of the panel. This document replaces what was supplement sa in the second edition of ul 508a, and subsequently appendix c in the third edition of ul 508a. Sa in the second edition of ul 508a, and subsequently appendix c in the third edition of ul 508a. Standard for surface raceways and fittings for use with data, signal, and control circuits. While that seems a reasonable request, and is certainly in the best interest of safety, in practice it can be difficult to comply with. In control panels, for example, ul508a manual section 66. Section 508 technical reference guide handbook as508 a september 2004 transmittal letter a. Outline of investigation for pump tank extinguishers. Ul 508a standard pdf download gaaphakerslingbeachs blog. Jul 07, 2015 in 2005 ul 508a was changed to require control panel builders to include a short circuit current rating on the control panel assembly.
Instructions provided with the motor protection circuit breaker shall indicate the adjustable range and means for adjustment. Electrical rigid metal conduit aluminum, red brass, and stainless steel. Ul 508a standard for industrial control panels standards catalog. Control panel technical guide how to ensure troublefree approval of your. With over a century of experience in the development of more than 1,500 standards, ul is an accredited standards developer in the us and canada. This document comes with our free notification service, good for the life of the document. The shortcircuit current rating sccr requirements for ul 508a came into force in april 2006. Ul standard for safety industrial control panels english.
A ul 508a listing mark shows that the panel complies with an. Ul 508a certification is an industrial control panel directive, which is sought by electrical inspectors. In your library, you can export parts in different formats pdf, xml, rtf at any point. Ul 508a standards for industrial control panels guideline. Metalworking machine tools, machines that cut or form metal. Read online ul 508a industrial control panels book pdf free download link book now. Our almost 400pagelong reference manual provides you with an overview of the north american standards nfpa 70 nec, ul 508a and nfpa 79 and comes with a host of tips and tricks for practical applications when planning and building control panels for north america.
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