Ul508 vs ul508a. Figure 4-1 Nameplate .
Ul508 vs ul508a It can be external as long as the enclosure is marked in accordance with 60. including both the UL508A and UL698A Standards for Safety for Industrial Control Panels, you can understand the nuances that make each alpha-numeric designation unique. 1 The following color coding shall be employed throughout the panel: a) Black – all ungrounded control circuit conductors operating at the supply voltage. UL508 and UL508A are two important safety standards for electrical equipment published by Underwriters Laboratories (UL). Document reference 6 October 2020 2 Socomec Team TODAY'S PRESENTER JULIA MURPHY Senior Technical Sales Support Engineer. Over the years I have seen many so called NEC violations within electrical equipment. A while back there were some minor differences just as there were in NFPA79 but that was "harmonized" maybe ten years ago. 2). UL Overview. M. The first edition was publised in 2001. I am not aware of anyplace where UL508a allows different ampacities. petersonra Senior Member. The current is thereby limited to a maximum of 5 amperes. 1, Page UL508A, April 2001 Conductor Size Unit Eq. I was always under the impression of the following. Sqmm Max. Control Panel Building - NEMA / UL Enclosure Ratings. RECENT POSTS. d) Yellow or orange – ungrounded control circuits or other wiring, such as for UL508A on Standoff Insulators . 1 (c) Reactivated automatically when all the doors are closed ABB flange solution: Door interlock can be defeated with the use of a tool when the operating handle is in the “ON” position. UL486E has a concession in that permits much lower wire pull out and secureness standards than UL486A-B has, in exchange for a verified wire strain relief built into the panel or casing to avoid wire strain being felt by the wire connector inside. Industrial control panel manufacturers can use the Download our free guideline for support designing industrial control panels for North America according to NFPA70 (NEC), UL508A and NFPA79. 12 Insulating Barriers . Dec 31, 2020. MET Laboratories, Inc was established in 1959 and has become a global service leader for product approvals and regulatory certification of electrical products in Baltimore, MD. 2(a)(1) Generic materials - - Type and minimum thickness as specified in Table 12. 2) Install current limiting fuses, or current limiting breakers where power comes into the panel. Study the standard carefully. We can help you understand the difference between both certifications. Location Mason, OH. UL508A Panel Builder. The panel is going to be built to UL508A and also UL698A because the panel has intrinsically safe barriers in it. 5. false. L2 = Orange. The UPS is UL Recognized under UL YEDU2. And should I be concerned about the distinction between UL508 and UL508A compliance? Any advice will be greatly appreciated. c) Blue – ungrounded dc control circuits. Some examples include, control circuit switches and relays, programmable controllers, and panels. com Testing the limits UL services ensure quality and competitive advantage in Through air means if you look at the two lugs on a device and look for the smallest air space between them, it must measure 1" or more. Table 1 Comparison of requirement for power supply; No Standard UL508 UL60950-1; 1: Clearance Creepage: Determined by input voltage. Thanks in advance, Paul . For panel components The Difference Between UL508 and UL508A. who sits on the UL508A Understand industrial control panel types, certification processes, and why choosing a certified UL508a panel shop matters in your next project. A UL label signifies that the panel builder has met the requirements of UL508A, and that their panels are subject to inspection by UL field The highly skilled technicians at this UL508A panel shop are certified to build UL508A control panels, and they also have a wide range of industry expertise. Underwriters Laboratories Inc. z. pisani168 Member. They are UL recognized and listed for use with most competitor's supplementary protectors and manual motor controllers. We have installed an Uninterruptible Power Supply in a control panel that is to be UL508a listed. How has HARTING made it possible to connectorize UL508A panels? Underwriter’s Laboratory (UL) sets the industry standards for both commercial and consumer use. Sort by: UL508A has a higher safety factor than NFPA 79. Here are some of the requirements you must meet to achieve UL508a certification on your panel: Components: Critical components used [] Hi, We have an engineer saying that the control panel we are going to build shall only bear a UL698A label and remove the UL508A from the control panel shop drawings. Specifically, TCI HGP and HGL passive filters are UL Between Jan. Location 2 Phase Philly. Article 409 of the National Electrical Code (NFPA 70) requires industrial control panels to be marked with an SCCR. This will allow us to use components rated greater than the peak let-through of a particular type and rating of fuse / CB, with one important exception. Very different. That limits your freedom and ability to add profitability by incorporating lower-cost components. 2 Motor 5 / 15HP / nameplate FLA is 19 / UL508a Table 50. C. Typically, such changes come into effect upon publication. UL98 vs. After Jan. UL508A is the standard for industrial control panels. Answer. Due to similarities of standards a full Want to avoid commonly made mistakes when working with the UL 508A standard for industrial control panels? This one hour live class on June 17, 2020 will ass Understand the major differences between UL 508C and UL 61800-5-1 and how you can transition your certification to the new Standard Learn how the alignment of requirements will allow you one investigation that provides certification to UL98 vs UL508. UL508a is an equipment standard. Products evaluated using UL 61800-5-1 will 1. 1, dimensions of AMPACITY OF WIRES/CABLE AS PER UL508A Ref: For UL- Cable : Table 29. So for example if you have a motor starter / MCC unit on a single motor circuit, and all UL 508A control panel design guide The easy-to-design guide for selection of electrical control components in control panels used in industrial machinery applications UL508A - 66. For successful acceptance of the switching equipment, the manufacturer of the control cabi-nets for export to the USA must consider the following: When UL-certified components are used, a distinction must be made between "UL-listed" components, the use of which UL508A - Can a shop that did not build a panel, inspect and label/certify it as 508A? (UL508) to calculate FLC of MIG; Dec 29, 2020; LIVE PLC Questions And Answers; Replies 4 Views 2,290. 2 These requirements also cover industrial control panel enclosures and industrial control panels primarily intended for flame safety supervision of combustible fuel type equipment, elevator control, crane or hoist control, service equipment use, marine use, air conditioning and refrigeration equipment, equipment for load management applications, from 41. Location Canada Occupation Engineer. The new Article 409, titled “Industrial Control Panels”, was introduced. These fast-paced industrial environments require safe and efficient electrical power and control to meet high production demands. Component Selection UL508 Manual Motor Controller (UL508E MMP or UL508F CMC) M M. UL489, UL508 and UL1077 busbars August 03, 2020 Sponsored Content Altech Corp. They use state-of-the-art tools in order to design, fabricate, and assemble the The UL specifications use category control numbers (CCN), which may also have a suffix to provide further information about regional usage. 1, dimensions of barrier shall between those products evaluated to UL 508 and those to the new standards, the guide card associated with UL’s Category Control Number (CCN) for Programmable Controllers, NRAQ (including NRAQ2, NRAQ7, NRAQ8), will be revised to include the new harmonized Standards. According to our inspector we cannot list this panel since YEDU2 is not in the SA1. 1 FLA is 9. A UL508A Panel Listing allows a panel shop to build controls that comply with UL508A safety design guidelines. UL508A Label. SB4. 333A FLA on the line side • UL508: UL Standard for Safety for Industrial Control Equipment • UL2367: UL Standard for Safety for Solid State Overcurrent Protectors Based on the above mentioned requirements, you can design an L-V L E Circuit according to UL508A with the following units: 1. 10 Combination Motor Controller: ev en though this chapter is not new to the standard, Chapter 2. UL UL508A, along with the National Electric Code NFPA70 and the NFPA79 standard for industrial machinery, dictates the design and construction of industrial control panels in the United States. In addition to the expanded scope defined in UL508A, Chapter 1. 27, 2017, all products must "UL 508 and UL508A ", presented by Galco TV. Geographical Scope and Acceptance : UL508A is predominantly recognized in North America, whereas IEC 61439-1 has a more global acceptance. Oct 28, 2020 #1 It is critically important to understand the process that UL will use to evaluate the SPD according to UL508A. At the time of writing, NFPA 2021 has not yet been published, while for UL 508A April 2020 update led to the unification of the two approaches mentioned above into a single one that represents the unique method for all types of industrial control panels. UL 508 is a standard for the safety of industrial control It is also important to understand the differences between UL 508A and UL 508. UL508A vs NEC Power Circuit Wire Colors. He probably meant UL508a. As machine builders and OEMs target the North American market, they must stay informed about potential regulatory changes driven by sustainability initiatives. JacL Member. 2? Looking at NEC it seems to always refer to motor FLA or FLC for calculations. In the Flame Control section of UL508A, Article 82. I have looked around and only been able to find references to article 725 about separating Class 2 circuits from power circuits. The standard provides guidelines to panel builders on various issues including component selection and wiring methods. I feel this is an area that needs to clarified in the code and the UL508A standard T/F: components or contractions not specifically covered by UL508A may be added to the follow-up services procedure after UL engineering review. The UL508 standard applies to equipment with a limit of 1,500 volts, while UL508 has a limit of 1,000 volts. It is imperative that industrial control panels operating at 600V or less I also found another statement in UL508A that supports the valves as control circuits. UL508A standard - Free ebook download as PDF File (. pdf) or read book online for free. As specified in the National Electrical Code (NEC), UL 508A Supplement SB, the Standard for Industrial Control Panels, provides an accepted method for determining the SCCR of the control panel. I know under UL508A in section 29. 2 standard is the equivalent for the Canadian market. 1 140M/ 140MT • Self-protected combination motor controllers • Provide disconnect, overcurrent protection, control and overload protection for Type E and F motor starters up to 45 A E125316 103 107 190 191 • Pre-configured 2- and 3-component DOL and reversing starters It is also important to understand the differences between UL 508A and UL 508. 1 When an insulating material is used as a barrier in order to comply with the required over surface or. 2. b) Red – ungrounded ac control circuits operating at a voltage less than the supply voltage. The panel is feeding a 480V/120V transformer, a 3phase 24V power supply, and multiple VFDs. UL6200 is the latest standard for safety for controllers specifically used in power production (e. Thread starter conmgt; Start date Jan 16, 2013; Status Not open for further replies. Thread starter fifty60; Start date Dec 13, 2018; Status Not open for further replies. UL508A 24VDC Control Vs Branch Circuit. The updated version allows ECBT2 also in control circuit; 37. Learn critical safety compliance requirements of the UL 508A Standard for industrial control panels and the new requirements found in the National Electrical Code ® (NEC) Article 409 and UL 508A Supplement B in our interactive two The main regulatory difference between UL98 and UL508 switch use is that a UL508 listed switch cannot be the only “branch disconnecting device” in any circuit, there must be either a UL489 circuit breaker or a UL98 listed device ahead of it somewhere in that branch circuit. And UL508A, along with a UL 508A is the technical standard for Industrial Control Panels in the USA. But on the control Googling UL98 vs UL508 made me think that UL98 devices might be "better" or "safer" than UL508 devices, but they are usually larger or more expensive. 1 FPN which references UL 508A. Whether a control panel has been completely custom built or only has minor variations, the UL508A certification can be This supplement offers some clarity on the relationship between the two. These requirements also cover industrial control devices or systems that store or process information and are provided with output motor control function(s). TYPE: UL 50 and 508 Electrical Enclosure Application and Description: Type 1: Indoor use primarily to provide protection against contact with the enclosed equipment and against limited amount of falling dirt. This should not be confused with UL 508 and UL 508A are both safety standards developed by Underwriters Laboratories (UL) for industrial control panels, but they have some key differences. This PodCast discusses the benefits of con This video looks at the four steps for calculating and increasing the SCCR using the UL 508A Supplement S-B. 7 and 75. It confuses a lot of people due to the similarity in designations. Based on tested combinations of devices according to UL508 . Is there a section of the NEC that references calculations for motor controls using VFDs? Industrial Control Panels (UL508A): UL508A contains two important requirements to consider when applying power distribution blocks. Ampere Rating (Temp. 1 FLA is 17 / VFD controlling that motor is 24. Affected Category (CCN) from UL 508 or UL 508C. Extension of degree of protection of enclosures Table 19. Figure 4-1 Nameplate . I've calculated a 180FLA. Oct 22, 2021 #1 Can somebody explain to me why UL508A lists HVAC equipment in section 88 but then we have UL1995 which is far less strict than 508A. Rating of 90 Deg. UL1077 UL1077 Evaluate panel per UL508A, Supplement B (required by 4-06 if Control Works is proud to be a UL 508A Certified Shop. Both standards are acceptable for use on UL508A panels. UL 508 INDUSTRIAL CONTROL EQUIPMENT STANDARDS For generator controls, there are several design and safety standards. 13. M M L Circuit Breaker 175A Circuit Breaker 50A Fuses 6A Circuit Breaker 125A Circuit Breaker 25A Overload Protection Overload Protection Overload Protection Controller Controller Transformer or Power Supply Controller Controller Controller Overload Protection Motor Load Motor Load Motor Load Motor Load In general, UL508a does not cover the cabling between the VFD and the motor. Trying to locate the appropriate wire color for 3 phase wiring. DAB41162 Member. Thread starter matlark; Start date Apr 26, 2012; matlark Member. While the NFPA 79 provides prescriptions for industrial machinery control NEC articles 90. Exception Another big item in the UL508A standard is the Labeling. They are not the same thing. I have heard multiple explanations on this and could use a NEC 409 reference or UL508A. Please refer to the Enclosed control products overview for more information. Based on your inputs of current, and temperatures prompted in this tool, the size (gauge) of power wires and cables will be given. However, they admittedly do NOT understand the PURPOSE of the rule in UL508A, which is so that when determining the conductor and feeder protection for the panel, you have the correct ampere value to work with. They are the same as in the NEC tables. I have a client who is questioning the procedure for determining Full Load Amps / Current for a UL508A panel and I was wondering if there was a UL-posted example (or advice!) on how this is done. The scope of UL508a stops at the field terminals. Input voltage = 240V, creepage between Pri. Respectively, this means The Sustainability in UL Standards Campaign explores the evolving intersection between UL standards, particularly UL508A certification, and sustainability. This certifies it meets the UL508 safety standard and was produced by panel shop with UL 508A certification. In the US, that typically means UL508A listing. This page serves to help determine future effective dates for changes to requirements in UL 508A, the Standard for Industrial Control Panels. Control Panel Building - IP Enclosure Protection Ratings. Luckily, I do not have to worry about this test, but I am creating this poll for This is an informative video that breaks down what is a UL508A industrial control panel which includes definitions, UL labeling, types, designs, enclosures, About Eurofins | MET Labs. UL508 disconnects. Sizing tables for the transformer are part of UL508A. You can remove the UPS INDUSTRIAL CONTROL EQUIPMENT For more information, contact your local sales team, e-mail ULHELPS@ul. “The 508A standard is essentially a handbook on how to put a panel together,” says Klaus Tum, a product director with Altech Corp. Chapter 2. I'm also going to put a contactor after the disconnect and before the transformer. Selecting devices that comply with the appropriate standard enables control panel builders to deliver the right technical solution to meet the application requirements, while also 1. 12. UL508 UL Solutions has created a document that summarizes the new and revised requirements in UL 508A, the Standard for Industrial Control Panels, third edition, published What’s the Difference Between UL508 & UL508A Certification? Both UL508 and UL508A exist to ensure industrial control equipment is safe and reliable. UL508A Origin, Title: Industrial Control Panels First edition 2001 Latest: Second Edition, December 2013 Current emphasis NFPA 70, The National Electrical Code (NEC), made reference to the UL508A standard in the 2005 edition. D. Rather, the UL508A standard is a guide for the layout and application of the components within the panel. Each component belongs to an individual Category that describes the specific requirements of the component. That Tom Fowler is a true technical expert on both IEC products and UL508 applications. L1 = Brown. In 1989, MET broke the UL monopoly for product safety testing and certification in the United States and is approved to certify products in over 200 UL standard categories. Dec 14, 2018 Why Understanding the Difference Matters. 15. This session focuses on UL 508A Supplement SB. Example of marking on a 3RT contactor . Visit our website free resources UL508 NKJH E205542 Combination Motor Controller 30. So glad that Schneider Electric has him on “our side”! Comments are closed. 3. A correction must be made to a general misconception as regards UL508A, engineers should understand that the UL508A standard is not focused on individual panel components. Conclusion UL508A Paragraph reference Component description UL Standard Category control number(s) Notes UL 508A Section/Paragraph Reference . However, if you want to you can permanently connect power or field devices to the control panel you can do it via the provisions of 28. When used in single-phase applica-tions a wire jumper must be added as shown in Figure 1. Related Articles. 13 states an industrial control panel constructed specifically for connection to a 3-phase, 4-wire delta supply, such as shown in Figure 75. UL4 and UL4X are increased protections on top of Technically, you cannot put anything into a UL508A listed CONTROL panel that is not listed in the UL508 book, which describes all of the other UL standards that are acceptable within 508A. (657) 201-8603; Search . Buy Standoff Insulators | Buy Multi Wire Lugs | View Standoff Catalog . In a UL508A Industrial Control Panel, the Surge Protective Device will be evaluated based on Sections 36, 47, and 75. Location USA. The difference is that UL 508A is a subset of UL 508 specific to Control Circuit vs Power Circuit. The customer is using a 400A molded case circuit breaker as The minimum spacing between uninsulated live parts of different polarities in a UL 98 switch is 2 inches over surface and 1 inch through air versus only a 1/2 inch over the surface and 3/8 inch through air for the UL 508 Eaton But there’s a workaround for smaller UL508A shops that want to provide UL 845 panels. Our current UL Because there are some differences between test requirements of UL 508C and UL 61800-5-1, participants of UL’s Data Acceptance Programs for UL 508C will be required to have an assessment to add UL 61800-5-1 to their scope. 0 Control Transformer is 600VAC to 120VAC / 2,000VA / 3. Keyword in this statement being "control". doc I'm inspecting a panel for UL 508A compliance and am confused on how to correctly size the main panel disconnect. Magnetic Motor Controllers – NLDX Manual Motor Controllers – NLRV The most fundamental difference between NFPA 79 and UL508A liesTitle: NFPA 79 vs UL508A: Understanding the Differences in Industrial Control Panel Standards Introduction: In the field of industrial control panel manufacturing, adherence to specific safety standards is of utmost importance to ensure the safety of personnel and equipment. Panel Builders: Let the digital economy hear your voice, louder! Strength through Partnership: Spotlight on Panel Builders’ Future. 6 UL LLC ASSUMES NO RESPONSIBILITY FOR ANY OMISSIONS OR ERRORS OR INACCURACIES WITH RESPECT TO THIS INFORMATION. • Spacing of 1˝ through air, 2˝ over surface (at 600V) is required when used in a feeder circuit (that’s everything ahead of or on the line side of the final branch circuit overcurrent protective device). 0 / VFD controlling that motor is 11. 9. , is a leading supplier of busbar systems in the US market. Though related, they serve different purposes: UL508 - This standard covers industrial control equipment intended for general use. UL 508A: 50: AC Motor Currents UL508A Paragraph reference Component description UL Standard Category control number(s) Notes UL 508A Section/Paragraph Reference Section 12 - Insulating Barriers meeting component selection requirements of 12. 1 (a) Means to defeat the interlock without removing power and which requires the use of a tool to operate; UL508A - 66. For more information, visit littelfuse. T/F: a panel containing only one control device inside an enclosure can be labled with a UL 508A enclosed ICP label. 4. The series delves into how General. 7 and 110. 1 34. NEC 430 Part F\ CEC. Replies continue below Key Differences Between UL508A and IEC 61439-1 1. UL508 does not have a equivalent Nema rating since it is the safety standard. 75 ) - 18 Awg (0. generators). 2 No. ampacity ratings, see UL508 A Table 28. 8 (see nets are contained in the application standard, UL508A "Industrial Control Panels". The Complete Guide to UL 508A Panel Shops and Electrical Panel Shops. -Sec. The difference is that UL 508A is a subset of UL 508 specific to panels. ex. . What’s the Difference Between UL508 & UL508A Certification? Both UL508 and UL508A exist to ensure industrial control equipment is safe and reliable. 1 Basic: Device markings or component instruction sheets . Table 1 shows the difference of requirement between UL508 and UL60950-1. Location Michigan Occupation EE. K. Karlag12. Ampere Frame: 32, 63, 100AF; Rated operating voltage (Ue): 1000V (690V for MMS-32) Rated frequency (Hz): 50/60Hz; Rated insulation voltage (Uimp): 8kV (6kV for MMS-32) Utilization category: Cat A, AC3; Instantaneous short circuit: 13 x Ie max; Significant differences between UL 508C and UL 61800-5-1 For the IEC requirements that were in effect ‘equivalent’ to the UL 508C standard, the IEC standard wording was adopted into the UL 61800-5-1. L3 = Yellow. In a UL508A listed panel, do you have to interlock the coil of a self protected Micah_68; Jun 24, 2016; LIVE PLC Questions And Answers; Replies 6 Views Listed cable but has a special provi-sion for “recognized component wiring” in article 12. Join Date Jul 2011 Location KY Posts 102. 2 These requirements also cover industrial control panel enclosures and industrial control panels primarily intended for flame safety supervision of combustible fuel type equipment, elevator control, crane or hoist control, service equipment use, marine use, air conditioning and refrigeration equipment, equipment for load management applications, Join us as Jay Deshpande speaks with Brady Eifrid of Kohler Power Systems about comparing UL6200 and UL508 standards for generator controllers. wiring terminals for loads to be connected between a phase and the neutral, shall comply with Clause 29. Confusion in respect to UL508A and NFPA standards can be extremely costly. Please note that this is not the complete Also, why would the ampacities between UL 508A and NFPA 79 be different in the first place for the same insulation temperature? Side note, is narrow slot panduit wiring duct considered raceway? Thanks! Share Add a Comment. 5HP / nameplate FLA is 8 / UL508a Table 50. a) The rating of the largest branch circuit protective device in the circuit plus 125 percent of all heater loads plus the full-load currents of all other motors or other loads in the group that could be in operation at the same time; or If a panel builder follows UL508A?s construction requirements and recommendations, they can apply to have their panel listed by UL. 1. Key Differences Between UL508 and UL508A. 1(a) Listed Machine tool wire Clarifies that terminals for other than Class B and C conductors do not need Procedure description if evaluated to UL What they are talking about is how to determine the FLA of a panel when there is a mixture of 3 phase and single phase loads. 25A Max 66. While both pertain to industrial electrical equipment, UL508 and UL508A have some important distinctions: Scope/Applications. The rules Christy Rosati, Bussmann Field Application Engineer, joins us for part 2 of our SCCR webinar series. J. What is the difference between UL508 and UL508A? UL508 is the standard for industrial control equipment. 1 that was already mentioned, there are several other changes that you should be aware of. UL certifications only apply to products going to North America. UL, or Underwriters Laboratories is an independent, not-for-profit organization that develops electrical safety standards. HVAC equipment in UL508A vs UL1995. 3 make it clear that electrical equipment must be "suitable," and the best way to indicate suitability of a control panel is via third-party listing. PP Control & Automation has long been promoting the considerations to be mindful of when navigating UL 508A. The “c” and “us” in the cULus Mark certifies adherence to safety standards for Canada and the United States. Power Supply: e. What is UL508A Industrial Control Panel Certification? It is a UL certification of an assembled industrial control panel that satisfies the requirements of UL508a standards, the panel must first be designed to meet those standards. UL 508 is the “Standard for Industrial Control Equipment,” and is much more widely known in the industry because it has been Q: How is UL508 different from UL/Nema4, UL/Nema 4X, UL/Nema12? A: UL508 is the Standard for Safety For Industrial Control Equipment. Evolution 40-3x360-520/24: Output Rating 24VDC SELV - UL UL508A Panel vs. UL508 is a standard for industrial control equipment. Only panels constructed to meet the full construction requirements and recommendations defined in UL508A can be labeled as such. 1 The size of the overcurrent protection shall not exceed the ampere value determined from (a) and (b), whichever is larger. When doing so, questions linking to NFPA often enter the discussion. Altech has an established line of UL1077/UL508 busbars with ratings up to 200 A. Poll; Poll for UL508A MTR Test Results. The two are different. 2 12. Based on your inputs prompted in this tool, all spacings will be given between adjacent live parts and metal within a UL 508A cabinet. But what does this mean? The UL mark is a universal mark of confidence with widespread acceptance. Control Panel Building - Environmental Ratings NEMA And IP. Add to basket A critical difference is whether the switches comply with the UL 98 Standard for Enclosed and Dead-Front Switches or UL 508 Standard for Industrial Control Equipment. Setting the standard for control panel design, UL508A covers a number of guidelines in addition to SCCR calculation, including component selection and wiring methods. If there is a special breaker or fuse for the HMI or other equipment mounted to the door, use that ampere rating to size the door grounding strap, not the overprotection current for the main panel breaker (15. Transition Standard. Standard for Safety - Industrial Control Panels We currently have a control system that we are trying to get UL Approval on. 5 it only mentions that wires need to have the same insulation ratings to be run together and not separated. 2K Ohm, 1/4 Watt, 250V, 5%, Carbon Film Resistors from our Digital Output to the Drive Enable as UL 508 Standard for Industrial Control Equipment DETAILS Edition Number: 18 SCC Approved: -- Edition Date: 2018-03-30 DOD Approved: 1989-06-05 Understanding UL508A. One special note considers the ground wire between the main cabinet and the hinged door. Add value on the control side The UL 845 Standard focuses on the power side of the panel and tightly constrains what panel builders can do. 4mm: What is UL508? UL 508A means industrial control panels have been tested to be safe to control devices. 4 V DC to 60 V DC. Upon successful inspection, the panel would bear the UL label. In order to meet our customers' safety requirements, Hope Industrial Systems certifies all display products to meet one or more of the following UL98 vs UL508 10/05/2020. Industrial control panels (ICPs) are defined by the National Electrical Code (NEC) Section 409. See Appendix Table 2 for UL508 Construction Type Distinctions. URL Name UL508-or-UL508A-for-Enclosed-Control. It's just one option. HARTING’s connectors listed below are approved to PVVA/2 (UL2237). Thread starter pisani168; Start date Oct 22, 2021; Status Not open for further replies. ) 22 Awg ( 0. Good luck on trying to find the SCCR on many of those parts. The UL508 standard applies to equipment with a limit of 1,500 volts, design of a UL508 certified product. UL 508 is for certain industrial control components. Transition Start/End Dates 1. com/sccr Motor 4 / 7. So what difference does it make if you follow UL508a or not? Having said that, UL508a does not require that you put branch circuit protection within the Industrial Control Panel at all. The problem is, we have a couple of stepper drives that require 2. As one UL guy said to me, "when in doubt, 5K it out". Thread starter JacL; Start date Oct 28, 2020; Status Not open for further replies. They maintain close relationships with authorities having jurisdiction (AHJs) and THE UL508A IS A STANDARD FOR COMPONENTS. UL508a is for listed control panels. On the panduit question, from a quick google search sure seems UL508 or UL508A for Enclosed Control. 4. 1 All power circuit components, including disconnect switches, branch circuit protective devices, branch circuit fuseholders, load controllers, motor overload relays, terminal blocks, and bus bars, shall have a short circuit current rating expressed in amperes or kiloamperes and voltage. In the NEC, the "high leg" (phase B) of a 240/3 system with center tap between A and C is mandated to be When calculating feeder size and protection should we use the VFD input current as in UL508A 30. Drawings for Enclosed Control. UL508A Submetering enclosures are NEMA 4X which means they are designed to protect against liquid and solid particulate. Most Siemens power control and circuit protection components include a standard short circuit rating on the front or on the nameplate. The following is a summary of the new and revised paragraphs in UL 508A, the Standard for Industrial Control Panels, third edition, published on April 24, 2018, which have an effective UL 508 vs UL 508A 1 UL 508 covers industrial control devices and device accesso-ries for starting, stopping, regulating, controlling, or protect-ing electric motors. 4 33. Manual Motor Starter Applications The XTPB and XTPR MMPs can be used in single-phase or three-phase manual motor starter applications. 26, 2012 and Jan. Turns out that UL1778 does make mention of being applicable to be used in control panels and references UL508A, but apparently this is an oversight at UL This sub is dedicated to discussion and questions about Programmable Logic Controllers (PLCs): "an industrial digital computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, This document is intended to be used to determine the requirements for components when used in industrial control panels. • SCCR for EMI Filters in Panels; Why does UL508 and UL508A allow use of UL486E as well as the “gold standard” UL486A-486B? A. (UL) is an independent product safety certification organization that tests products for compliance to specific safety standards. For a simple example, the panel (please see wiring schematic attached) is fed by 120VAC, and has loads of Utility Light (datasheet rating of 0. g. UL 508A: 29: Power Conductor Sizing. This must go through UL certification soon. Due to similarities of standards a full Because there are some differences between test requirements of UL 508C and UL 61800-5-1, participants of UL’s Data Acceptance Programs for UL 508C will be required to have an assessment to add UL 61800-5-1 to their scope. • ECBT2 Connectors in Control Circuits; The use of ECBT2 connectors was added to the second edition of UL508A but it allowed these connectors to be used in power circuit only. Although both are safety standards, the latter is a standard for industrial control equipment as opposed to the control panels themselves. : 2. As I read Article 409, UL508A listing isn't explicitly required. The new UL standard requires drive manufacturers to pass current through the VFD’s protective bonding path and measure the voltage resistance, then calculate the resistance of said path, with a passing requirement of under . Document reference 6 October 2020 3 •Standards Overview > UL 508 > UL 98 > UL 508A •Product Overview > Sirco M UL 508 > Sirco M UL 98 > Sirco UL 98 Overview of industrial control panels . 2 3/7/17 Sizing an internal bonding conductor Where an internal over-current device is installed to protect control circuit conductors for door mounted equipment, the ampere rating of this over-current device can be used to size the bonding Difference between UL508 and UL60950-1. Bulletins/Communications. 5 31. This video will describe the difference between the usage of UL508 and UL508A. Products evaluated using UL 61010-1 and UL 61010-2-201 will be separated in the UL 6200 VS. In any case, NEC is an installation standard. UL508: Manual motor starter in group installations; Ratings. P. In this scenario there is: No installation manual, No verification of functionality, and; No required testing of PLC software for safety; only for functionality The Sustainability in UL Standards Campaign explores the evolving intersection between UL standards, particularly UL508A certification, and sustainability. For the most part the IEC requirements were similar, or the differences easily adopted. Standard Enclosed Control products are listed to UL508. Number of between those products evaluated to UL 508C and those to the new harmonized standard, the guide card associated with UL’s Category Control Number (CCN) for drives, NMMS, has been revised to include the new harmonized document. Jan 16, 2013 #1 I have a question about installing a disconnect on the primaries to a transformer. The main UL ratings concern listed and recognized parts. The two that are most relevant for certified generator controls are UL 508 and UL 6200. UL508A Paragrap h reference Component description UL Standard Category control number(s) Notes UL 508A Section/Paragraph Reference Section 12 - Insulating Barriers meeting component selection requirements of 12. Starting from the basics of electrical safety, stated by the NEC and looking at the prescriptions stated in NFPA 79, it gives indications for the design of industrial control panels. TCI offers a wide range of power quality products in both the UL 508 and UL 508A classifications. PLC, I/O). I used to run a UL508 shop, so I know what UL means. Over surface means the distance is measured as if you were an ant crawling on the surface in as short of a path as possible along a common (non-conductive) surface between terminals, often referred to as "down, over and up". I have been told that the new edition states some drastic changes from the previous release: 24VDC common, unless it is grounded, should be blue, any wire that does not turn off with the panel disconnecting means shall be orange or yellow and the neutral shall be white When is it OK to use a UL508 Disconnect in place of a UL98 disconnect on a UL508A listed panel? We have a panel that mainly controls a motor, but has other circuits (ie. Control Circuit Transformer PLC I/O Contactor Coils Relays. 2 as an assembly of two or more power circuit components, control circuit components, or any combination of power and control circuit components. 5 ) - 20 Awg ( 0. 1 states "The output from a primary safety control to the main gas valve shall not have interposing components that are able to switch or isolate the control voltage". Document Was Downloaded By Paul Kowalsky For Use By ROCKWELL AUTOMATION 19216 : 1/21/2014 - 5:11 PM UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR 32. This on-demand webinar provides an overview on the requirements for industrial machinery as per UL 2011 (NFPA 79), the Factory Automation Equipment Standard; and associated control panel requirements as per UL 508A, the I have a copy of UL508A. Transition FAQs. Blog. UL 508A is a standardfor industrial control panels covering the enclosu-re as well as the panel in applicati- edition of 508A 29. tom baker It was brought to my attention that UL508A had a wire color code change in the 2013 edition. true. Thread starter DAB41162; Start date Aug 14, 2023; Status Not open for further replies. 9. This is only allowed for portable equipment. 26, 2017, new products are to be evaluated to UL 60947-4 only, but revisions to existing products may be evaluated using UL 508 if requested. Control Panels: UL 508A Section 16 Protective bonding is another essential difference between the two safety standards. conmgt Senior Member. 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. Control Panel Components The reason I am asking is UL508A does not allow less than 14AWG for "power" circuit conductors. com or visit ul. 2. Are certified components automatically compliant with UL508A/CSA C22. fifty60 Senior Member. 286? If certified components are used, this does not necessarily mean that the entire control cabinet complies UL489 VS UL508: VFD DRIVEN MOTOR. Top picks. Location Northern illinois Methinks that the time you have spent pondering this has already more than consumed any perceived savings between 14ga & 16ga wire I like to keep it simple; if I use black for power wiring UL508A is the standard for the construction of Industrial Control Panels. Wire Ferrules - When To Use, How To Crimp, Insulated Vs Non-Insulated, And UL 508A Guidelines. 10 is specified throu ghout UL508A when it comes to short-circuit ratings. Clause 29. It applies to a broad range of individual devices like motor controllers, overload relays, panel boards, motor control 1. The UL508a standard is the standard for the use of industrial switch cabinets and control systems on the us market and places particularly high demands on safety components and test procedures, the CSA 22. UL Listed Control. 82 Microsoft Word - E-ENG-10 AMP Vs Wire selection. 1 table in the UL508a s The UPS does have to be listed under UL508 NMTR in addition to UL1778. 2 for Enclosure Types was expanded to include 6P A UL508A Panel is an electrical control panel with a UL508A Label. The maximum output power of 100 W must still be adhered to and a corresponding fuse protection must be provided. If you find yourself wondering what the difference between UL508 and UL698 is, don’t worry. 02 ohm. As machine builders and OEMs target the North American In April 2020 an updated version was released with a few changes summarised hereafter. Using a UL 489 circuit breaker in place of a UL 508 control device, or vice versa, could result in inadequate protection or control, leading to potential safety hazards. This panel appears to be a control only type of panel. Knowing the difference between UL 489 and UL 508 is essential for selecting the right components for your electrical systems. UL508 is a broader standard that encompasses the individual components and complete control equipment, while UL508A is applied to only the industrial control panels. but lately all the class 2 and 120 V are in the same duct. The Difference Between UL508 and UL508A. through air spacings, or both, the required spacings in Section 10, Spacings, shall be applied by tracing 1000 V Increases the maximum allowable supply voltage for panels to 1000 V, AC or DC. Industrial control panels offer precise control for the high-speed automation equipment that drives modern factories. Two You might want to check UL 508A directly look at NEC Article 409 and 409. hgbcs lhovh vxbe ehk aejkmp kwdfz yewp nvwf sqemvm xzqcan