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. Mmc marked suitable as tap 24 apr ul standard for safety for industrial control equipment, ul 508. Benefits of selecting an enclosure or cabinet that carry the ul 508a certification include. While that seems a reasonable request, and is certainly in the best interest of safety, in practice it can be difficult to comply with. These standards provide details and guidelines for the design, placement, durability and colors of needed labels.
This guide is not intended to be used in lieu of ul 508a or other regulatory standards. Ul 508a industrial control panels power distribution and. Underwriters laboratories ul is an independent testing company that provides product safety standards and third party product safety certification. The secure pdf file needs to remain open for offline viewing. Ul standards setting safety standards are written documents that outline the process in which a product is tested to help mitigate risk, injury or danger. Eaton s assortment of new supplementary handles meet these stricter requirements in both the ul 508a and nfpa 79 standards. A secure pdf license can be reassigned to a different computer if necessary. 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. Ul standards encompass ul s extensive safety research and scientific expertise. Ul 508 is the standard for industrial control equipment, whereas ul 508a is for industrial control panels. Includes explosionproof, purged pressurized and nonincendive type panels. Ul 508a, supplement sb is an approved method to determine sccr for industrial control panels and industrial machinery control panels.
The ul508a mark indicates to you that all details of the integration of the components within this enclosure were done consistent. Jun 30, 2015 the ul representative at the meeting understood their predicament and vowed to try to harmonize the ul 508 standards with the latest iec standards. Ul508a and nfpa79 have a quasilegislative character. December 19, 2017 ul and dgn sign collaboration agreement on standards october 20, 2017 ul standards program manager, deborah prince, recognized with the 2017 ansi meritorious service award during the ansi awards banquet and ceremony held during the us celebration of world standards week october 10, 2017 ul. Eatons assortment of new supplementary handles meet these stricter requirements in both the. The first day of the workshop focuses on how to construct general use industrial control panels in accordance with the standard for industrial control panels, ul 508a, 3rd edition. 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 makes fulfilling the global regulatory requirements considerably easier for power supply manufactur.
Ul 508a establishes guidelines for the product as well as conser. These are acronyms for the safety standards used to produce and install electrical control panels and. Ul standard for safety industrial control equipment. In order to open a secure pdf, you will need to install the fileopen plugin and register your computer. The nec has article 409 dedicated to the industrial control panels, but it contains few details. Ul standard for safety industrial control panels english.
Cables according to nec, nfpa 79 and ul 508a standards. 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 standard for safety for industrial control panels, ul 508a second edition, dated december 20, 20 summary of topics this revision of ul 508a is issued to correct table sb4. This keeps the manufacturers on their toes to keep meeting the ul requirements. Ul standards encompass uls extensive safety research and scientific expertise. Ul standardssetting safety standards are written documents that outline the process in which a product is tested to help mitigate risk, injury or danger. Csds proposals including access to uls collaborative standards development system. In 2005 ul 508a was changed to require control panel builders to include a short circuit current rating on the control panel assembly.
Such evaluations are covered by the standards applicable to the complete piece of utilization equipment. The ul representative at the meeting understood their predicament and vowed to try to harmonize the ul 508 standards with the latest iec standards. Periodic audits of manufacturers that carry the ul 508a certification. This guide replaces neither the standards including ul 508a that electrical equipment must comply with nor the requirements of standard profes. These requirements cover industrial control panels intended for general industrial use, operating from a voltage of volts or less. 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. Always consult all pertinent actual regulatory standards and local standard representatives to ensure full compliance. Ul 508a industrial control panels power distribution and control. Metalworking machine tools, machines that cut or form metal. 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, standard for industrial control panels intertek. We can manufacture control panels from customer supplied drawings, or we can create an effective custom solution for an application based on intended requirements. Ul508a is a safety standard for industrial control panels adopted by. Selecting the right switch for the right application. Concept solid singledoor, door with window and flushmount models ul 508a listed. Find the most uptodate version of ul 508a at engineering360. Ul 508a is a standard covering industrial control panels. Ul 508a, but is by no means an exhaustive guide, and does not cover all uses and applications associated with ul 508a regulations. The ul 508a standard directs manufacturers on various issues regarding. Ul offers training in constructing industrial control panels in accordance with ul 508a. We are able to supply control panels in nema 1, 12, 3r, 4x enclosures. Ul also tests and certifies to these critical industrial standards. It stands to reason, however, that the nec and cec3 will come to.
Ul 508a covers industrial control panels and industrial panel enclosures operating at 600 volts. The following types of machines are identified as industrial machinery. Like most industries the electrical industry uses many acronyms. The topic of short circuit current ratings as described in this paper is in line with current marking requirements in the us. How to facilitate the ulcompliant approval to your control panel. Ul panels are third party safety approved so other third parties can easily approve them. A ul508a panel is an electrical control panel with a ul508a label. These standards apply when the entire control panel is located in a hazardous location. Our engineering staff can assist in the design of your panelboards to meet the most stringent of ul 508a standards. These requirements cover industrial control panels intended for general industrial use, operating from a.
The evaluation of a prefabricated building, structure, or platforms supplied with industrial control panels are not covered by the. Ul 508a supplement sa specific component requirements ul. Standards subscriptions from ansi provides a moneysaving, multiuser solution for accessing standards. A panel that carries a ul508a certified mark does not mean that the completed control panel has been designed and tested to ul 508a standards. We will help with the acceptance ul 508a standard pdf download a1d9fc608e share on facebook in industrial control panels according to ul508a. Fire pump controllers are covered by the requirements in the standard for fire pump controllers, ul 218. Harmonic filters are available as both ul 508 and ul 508a as they fall into both categories. Ul 508a standard for industrial control panels standards catalog. Bedeutung, geltungsbereiche, beispiele induux wiki.
Ul standards development covers more than just products. Sa in the second edition of ul 508a, and subsequently appendix c in the third edition of ul 508a. Ul 508a covers industrial control panels and industrial panel enclosures operating at 600. If a customer follows ul 508a s construction requirements and. Equipment standards only require the sccr to be marked nec requires the marked value to be adequate for the maximum available fault current. This document gives guidelines to panel builders on various issues including proper component selection, wiring methods and calculation of short circuit current ratings. Compliance with the standard for automatic electrical controls for household and similar use, part 1.
This ul label, classified as ul508a, when applied to an industrial control system, is a symbol of quality and reliability, and also guarantees compliance with nec and nfpa standards as well as safety standards. The standards for industrial control panels icps for use in hazardous locations are ul 1203, nfpa 496 and ansiisa 12. Schneider electric electrical distribution roger pollack june 2008 8. Control panel design guide according ul 508a build it in. The standards for industrial control panels icps for use in hazardous locations are ul1203, nfpa 496 and ansiisa 12. Purchase ul standards online official ul standards sales. Control panel design guide according ul 508a eaton. This guide replaces neither the standards including ul 508a that electrical equipment must comply with nor the requirements of standard profes sional practice. This certifies it meets the ul508 safety standard and was produced by panel shop with ul 508a certification. 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. In regards to power supplies, ansiul 610101 and ansiul 610102201 have replaced the old ul 508 standard for industrial control equipment. 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.
Ul certification customers have free access to ul standards, not including ul iec based standards. Ul 508a standard for industrial control panels first edition april, 2001 second edition december 20, 20 this ul standard for safety consists of the second edition including revisions through january, 2014. June 2008 ul 508 application guide make the most of your energysm. A circuit that carries the electric signals directing the performance of a controller, and which does not carry the main. Ul is a global independent safety science company offering expertise across three strategic businesses. Requirements for industrial control panel safety, conductors. Ul 508a control panel design considerations c3controls. A ul panel shop can independently design and produce ul panels.
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. Their functionality is similar, but the selection of the listing mark will depend on the need and application. There is presently no direct equivalent to ul 508a in the canadian standards. The training will primarily focus on uls policies for building industrial control panels and how to navigate the ul 508a standard. Our engineering staff can assist in the design of your panelboards to meet the most stringent of ul508a standards. A brief history of ul 508a and tips for how control panel. Ul508a is the ul standard for the construction of industrial control panels. We will help with the acceptance ul 508a standard pdf download a1d9fc608e share on facebook 31 aug 2010. The ones most commonly associated with electrical control panels are ul 508a, nec, nema, and iec. Ul 508a standard for industrial control panels standards. Codes and regulations for panel builders wtwh media.
Ul 508a ul standard for safety industrial control panels. Standards page 1 of 205 ul 508a standard for safety industrial control panels purchase options next last standard for industrial control panels ul standard o scope o summary ot topics standard standard 508a. Ul 508a is the reference standard for the industrial control panels in the usa. Conductors and components of branch and feeder circuits. Formerly supplement sa of ul 508a 1 listed components 1. Fulfilling key requirements of relevant north american standards 2 3 20 1 feeder main. Ul 508 application guide make the most of your energysm. Ul 508 labelling ul 508a certification to panel builder. Sccr ratings instruction sheets with sccr ratings ul tested combinations pdf.
Comments or proposals for revisions on any part of the standard may be submitted to ul at any time. Ul 508a standard for industrial control panels purcell systems. Requirements for industrial control panel safety, implications of ul. December 19, 2017 ul and dgn sign collaboration agreement on standards october 20, 2017 ul standards program manager, deborah prince, recognized with the 2017 ansi meritorious service award during the ansi awards banquet and ceremony held during the us celebration of world standards week october 10, 2017 ul standards program manager, joe. Ul 508a is a subset of ul 508 and is specifically for industrial control panels. Ul 508a certification provides the inspection authority and your customer evidence that the control panel complies with nationally recognized safety standards. Requirements for industrial control panel safety, implications of ul 508a 2nd edition. These are acronyms for the safety standards used to produce and install electrical control panels and electrical wiring systems. These standards ensure public safety, and provide assurances. Ul 508a the standard ul 508a industrial machinery the following types of machines are identified as industrial machinery.
A project for an ordinary location listing provides certification and training with a ul engineer at your facility for private onboarding training. Ul 508a control panel design guide newark element14. Ul 508a standard pdf download a1d9fc608e share on facebook 31 aug 2010. Always consult all pertinent actual regulatory standards and local standard representatives to ensure. Equipment intended to be connected to a source of supply greater. An internet connection is required to open a secure pdf. Ul 508a cabinet level ul listed andor ul regognized if in compliance with ul 508a 29. It is the responsibility of the equipment manufacturer to ensure compliance with all applicable standards.
468 1150 298 279 698 214 840 1022 563 344 1366 211 1373 153 354 34 1120 583 1014 851 508 546 347 196 873 227 135 1441 740 493 178 198 624 316 643 379 927 410 210 478 166 453 1080 612 749