Square d main lug torque specs. Leaving about 1 inch of space between.

Square d main lug torque specs Free shipping. To land a 750MCM wire in them, the lug has to be backed all the way out. Released for: Schneider Electric USA For QO outdoor load centers that are 150–225 A single-phase, main lug devices rated for 22,000 RMS symmetrical amperes short circuit systems, use four screws by removing the interior trim support bracket knockout. The lugs on the left are for the A-phase, the lugs on the right are the B-phase. Jul 5, 2018 · I started to update our torque chart to match the bolt manufacturers specifications but I have a concern. Otherwise “done at 1:30 on Friday afternoon” becomes far less likely. CTA-ID : 2047831 Released for: Schneider Electric USA Use only Square D main and sub-feed breaker kits and branch breakers catalog prefix QO, QOB, QH and QHB. Where a tightening torque is indicated as a numeric value on equipment or in installation instructions provided by the manufacturer, a calibrated torque tool shall be used to achieve the indicated torque value, unless the equipment manufacturer has provided installation instructions for an alternative method of achieving the required torque. If when running main bus in a 480V switchgear I use 1/2" bolts and torque to 80ft/lbs, what happens when the bus bar heats up during use? Oct 23, 2023 · QO and Homeline Load Centers and Circuit Breaker Installation Instructions This bulletin contains instructions for the installation, mounting (surface mounting and flush mounting), cover/trim installation, and operation of QO and Homeline load centers. Any ideas? Mid panel swap and I reaaaaaallly wanna avoid stopping to find a panel to swap the guts out of. 10-2/0 cu, No. Jun 24, 2011 · Anyone know what is proper torque settings for main feeder lugs. (20 N•m) 5/16 in. Designed by Square D, a trusted name in electrical equipment, this Homeline Main Lug Breaker Box is built to meet the power distribution needs of both residential and commercial settings. They are designed to meet residential, commercial, and industrial requirements to help protect electrical systems, equipment, and people. Mar 21, 2022 · Square D I-Line and Power-Zone Busway Systems Catalog This catalog includes information on features, construction, application, installation, electrical data, busbar configuration, wiring diagrams, and dimension drawings for Busway Systems. Use 1/4-20 x 9/16 in. * 450 lb-in. Square D HOM612L100SCP download instruction manual pdf Homeline 100 Amp 6-Space 12-Circuit Indoor Surface Mount Main Lug Load Center with Cover Apr 15, 2021 · I showed him the datasheet that there are torque specs and said he just added torque to an already inspected meter panel. See FA126819 for all the PK ground bar wire sizes and torque specifications. Aug 8, 2025 · Issue: Torque value for a 42 circuit 400 amp NQ Main lug panel Product Line: Panelboards. Anyone ever see a breaker torque spec Mar 26, 2002 · What size of Allen (hex head) wrench and torque is required for the wire binding screws on the 150, 200, and 225 A main lugs and main breakers used in QO and Homeline load centers? Aug 31, 2021 · This catalog provides information on standards, ratings, and features for NQ Circuit Breaker Panelboards. The lugs themselves have a greater tendency to heat up than Apr 30, 2005 · Re: "Nobody torques a breaker" Well, I've had experience where a big guy at our shop tightened lugs too tight, and although the lug didn't snap while he was standing there, it failed about four months later. I have been looking in Apr 2, 2025 · Issue: Torque specs for I-Line panel Product Line: Panelboards Environment: I-Line Cause: Installation and maintenance Resolution: There is a printed label showing the tightening torque values for the lugs on the back of the interior deadfront. ] Remember that there are usually two different values given on the side of the torque wrench, Newton-meters and foot- or inch-pounds; be sure you are reading the correct side or your values will be wrong. The main devices are available as main circuit breakers, main fusible switches, or main lug terminal boxes. e. Jul 18, 2025 · Issue: Torque spec for NQ panel Product Line: Panelboards Environment: NQ Resolution: Use 25-30 ft. Have 15100A breakers. Size 5 = 300-400 in lbs. But what about the main 120 AC breaker box inside the RV? I’m worried about all those big circuit breakers in there. Jan 15, 2021 · I’d be good if you could estimate required torque by just looking at the connector size. You can also review the attachment. 6-300 Cu-Al (2) No. Dec 9, 2022 · The best electrical lug torque specs chart square d provides an estimate of how much torque the best electrical lug torque specs chart square d can deliver. I was terminating 3/0 copper on a newer square D main lug panel, and the torque specs on the panel state 250 in/lb, converted that to 20 ft/lb. The labeling recommends 250 in. See attached copy of the label. My power panel doesn’t say what the torque values should be on those breakers and I’m pretty sure they also need to be torqued The following are the recommend torque values: Size 1 = 18-20 in lbs. (70 N•m) and are marked as such. Released for: Schneider Electric USA Apr 1, 2025 · Issue: Torque specs for I-Line panel lug Product Line: Panelboards Environment: I-Line Cause: Installation and maintenance Resolution: For 3/8`` screw it is 340 in-lbs. Product Details About This Product For field installation, use this Square D by Schneider Electric Breaker Box Neutral Lug. With industry-leading innovations and features, Square D Homeline Load Centers are the smart, safe, and reliable choice. A critical concept in understanding bus lug torque specifications is the fact that the pressure of the lug connection has more to do with lowering the resistance of the electrical connection than the size of the lug itself. 14 (A) and (D) Terminal Connection Torque Electricians: To Torque or Not to Torque Is that the Question? Standard mechanical main lug connections will accept copper or aluminum wire. 180 lb-in. Incoming, Branch, and Neutral Lug Socket Size Across Flats Torque Value 1/4 in. INFORMATION SHEET TIGHTENING TORQUE VALUES FOR ILSCO MECHANICAL SCREW CONNECTORS FORM 1 Revised 9-21-2015 Oct 7, 2024 · What is the torque requrement for the Powerpact L frame breaker lug wire binding screw, lug mounting screw, busbar connection, and compression lug? Product Line: May 30, 2017 · What To Do Please take the time to read the manufacturer’s instructions, understand the various requirements, and of course, follow-through. (38 N•m) 1/2 in. Size 3 = 90-100 in lbs. Jun 23, 2022 · Issue:NQ panelboard main lug wire ranges and torque valuesProduct Line:PanelboardsEnvironment:NQ PanelboardsCause:What are the NQ panelboard main lug wire ranges and torq Incoming, Branch, and Neutral Lug Socket Size Across Flats Torque Value 1/4 in. It also includes installation Line Lugs All lugs suitable for 75 °C copper or aluminum wires (see Main Lugs and Main Circuit Breaker Ratings on page 20) Main lugs and main circuit breaker load centers have wire binding screw torque values on the wiring diagrams and circuit breaker labels Schneider Electric USA. Over-torquing = broken lugs arcing. Leaving about 1 inch of space between. May 2, 2015 · Hi all, I read the name plate on the breaker panel, but was confuse on the torque settings. Specifications Main Breaker Main Lug and Branch Circuit Breakers Kits and Accessories Panel Options & Modifications Enclosure Dimensions Jun 30, 2022 · The PK9GTA through PK27GTA (L) will install ONLY in Square D QO and Homeline convertible main, 100 - 225 A load centers. 4 How to Torque Terminals in a Square D Homeline Load Center Sparky Channel 241K subscribers Subscribe Aug 8, 2025 · Issue: What are the electrical connection Torque specifications for a QED Switchboard (SWBD)? Product Line: QED SWBD Environment: Installation Cause: Clarification Resolution: See the attached Instruction below referencing page 53 Released for: Schneider Electric USA Mar 15, 2017 · I just got turned down from an inspector for not having a torque wrench with me to show the torque of main lugs at a panel I replaced. Torque specifications, Torque value quick reference, Structural fasteners – GE Industrial Solutions GE ZENITH SERIES MDU User Manual Page 14: Standard circuit breakers (mains & sub-feeds) Main lug interiors equipped with sub-feed or feed-through lugs, where the device feeding the interior is unknown or not a Square D brand device, are rated to 25,000 RMS symmetrical amperes at 600Y/347 Vac maximum for three cycles. Equipment grounding bar included with main lug load centers. Also, for terminal screws on devices. (Please also see Addendum 80043-863-01. Study the associated instruction books and all drawings carefully. This document contains technical information for legacy thermal-magnetic and magnetic only molded case circuit breakers. Jun 7, 2016 · Issue: 9422TF1 Torque Specifications Product Line: Operating Mechanisms and Disconnect Switches Envirionment: 9422 flange mounted disconnect Cause: Customers need to know torque spec for wire binding screw and lug retaining nut Resolution: Lug tightening torque for wire binding screw for both the AL and CU lugs is 375 In Lbs. Several bus options: Purchase Square D AL900MA Kits at SimplyBreakers. Loose lugs create a high-resistance connection to the bus bar, and electrical resistance in metal causes heat. I set my new Klien wrench to 20, it got pretty tight, then started creaking and looked like the lugs and busbars were starting to deform. Torque electrical connections to the values recommended in the tables below. id name, lines with ft/lbs or newton meters whatever, line to write the tool number in, line for tool torque qc date and renew date (oops that could be hard), line for if two man verified torque, have the men fill them out, sign initial . See below for lug information. Load center features include single or 3-phase and indoor/outdoor options, with 30 to 400 amps and 2 to 42 circuits. lug mounting screw on applications with feed-through lug, sub-feed lug, sub-feed circuit breaker, or 200% neutral applications. Does anyone have any tips on how to ensure they are torqued to spec? You're looking at the main lugs in a square-d 3000A switchgear. In most cases, all drawings are sent to the purchaser before a switchboard is shipped to enable adequate planning. If you can't find the listing on the meter base, call Eaton with the model number and ask them. Wire size and torque values are dependent on breaker's continuous ampere rating. For 1/2`` screw it is 450 in-lbs. So my questions are 1. The chart is designed to help businesses and individuals ensure they are using the best electrical lug torque specs for their needs. Were would I fined the appropriate paper work to show what foot pound to torck my connections? If you’re looking for a reliable and versatile electrical panel, the Square-D Homeline 12-Space 125A Electrical Panel is the perfect solution. Be advised that the plug-on connection arrangement for HOMT circuit breakers is different from HOM circuit breakers. The compact footprint makes them easier to handle and install. Schneider Electric USA. Cause: Maintenance. If you found it loose, they aren't even close to the right torque. QOM2150VH - Main breaker, QO, 150A, 2 pole, 120/240VAC, 22kA, bolt on. The AFCI overall size is larger than an equivalent QO circuit breaker. Visi-Tite nuts eliminate the need for time-consuming torque . 110-225 A main circuit breaker interior consists of: — Standard main lug interior. How does one torque them to specs if you can't get a This main lugs interior is rated 400A for 240VAC and 48VDC, has a plated copper bus, and 42 pole spaces. Next time you torque that neutral lug, make sure you’re doing something to keep it from spinning on you. I would not assume that the torque listing for a 125 amp Square D panel would have anything to do with an Eaton 200 amp meter base. 1-year warranty included. 8 ft-lbs. How do I find torque value for my BAB breaker? To determine the torque value, use the continuous ampere rating of your breaker and find the wire size by referring to the Technical Data and Specification page in the catalog. 4-1/0 Cu-Al (2) No. Here are a few examples: Hinges and ground bars: Side hinge doors on outdoor convertible main panels. (28 N•m) 3/8 in. [ 250/12=20. Torque specs are often listed on the manufacturer’s literature, on the actual lug or terminal, or even on the front or side of the circuit breaker. I got up to 150 in. Screws: Single captive screw interior mounting on indoor panels to ease removal. Homeline Plug-on Neutral (PoN) load centers are designed for fast installation, reliability, and superior circuit protection. Refer to note C and D for other options. We use them all the time in industrial. Update your commercial power distribution system with Square D Homeline Indoor Main Lug PlugOn Neutral Load Center with Cover Ground Bar. Jan 25, 2014 · Hi all: This job the customer wants everything by the book, using 200A AL/CU panel, Square D QO. , HFD3100L) please confirm that the customer needs both line and loadside lugs. NF Panelboard interiors are available with plated aluminum or copper bus. All 225A and smaller main breaker loadcenters ship from the factory with a terminal insulator kit. screw in mounting for 100/225 A interiors with no options. We're powering you to succeed, with tools like OrderTrack and LayoutFAST. Update your commercial power distribution system with Square D Homeline 20-Space 40-Circuit Indoor Main Lug Plug-On Neutral Load Center with Cover. Molded case circuit breaker lug selection guide If asked for a molded case circuit breaker (MCCB) catalog number that ends with “L” (i. Each load center space accepts full-size, tandem, or quad breakers, simplifying selection and installation Designed to meet residential requirements Feb 18, 2025 · Square D I-Line Circuit Breaker Panelboards Catalog - Class 2110 This document contains the product description and information on features, accessories, application, dimensions, and replacement parts for I-Line™ Circuit Breaker Panelboards. Sep 29, 2006 · Is there a standard torque spec for lugs according to there size? Or are they according to manufacturers? I have a 3000 amp transfer switch with the lugs so close together that i barely get a "L" 1/2 in Allen wrench in to tighten them. Combination slot/square drive neutral, ground, and cover screws for positive drive and improved torque. Correct installation of Power-Style QED-2 switchboards is essential for proper operation of all switchboard components. Size 4 = 90-100 in lbs. The maximum combined rating of breakers on each branch bus connector on 100A panels should not exceed 100 amps. Resolution: Lug can accept (1) 1/0-750 kcmil conductor, or (2) 1/0-350 kcmil which needs to be torqued to 275-300 in lbs. Released for: Schneider Electric USA Feb 21, 2024 · A standard 15- or 20-amp receptacle? A typical 15- or 20-amp circuit breaker? A main lug on a 200-amp commercial or residential panelboard? A socket screw connector for an electrical connection? So, exactly what values is the user supposed to torque the following items to? Nov 8, 2018 · For those that use torque wrenches on their terminations, do you ever question them? For example, I swapped out a FP panel today with a 150 amp main breaker Square D Homeline panel. This main lugs interior is rated 225A for 240VAC and 48VDC, has a plated copper bus, and 30 pole spaces. lbs and left it at Product News TECHNICAL PRODUCT INFORMATION FEBRUARY, 1991 Torque And Cable Information NQOD RECOMMENDED TORQUE SETTINGS CLASS 1600 • For Panelboards PN 119 Mains Ampere Rating 100-225 400 600 Torque 340 550 550 250 250 Terminal Description Connector Maximum Wire Range No. The torque specs are 51. Size 2 = 45-50 in lbs. He said those specs are written by engineers and they don't know what they are talking about and proceeded to recite his resume to me. Consult UL486 Tables 7-4, 7-5, 7-6 for smaller conductor sizes. 125–400 A main lug interiors are convertible to main circuit breaker interiors by adding a main circuit breaker adapter kit and a main circuit breaker. 100 A main circuit breaker interiors use a standard main lug interior and an appropriate QOB or QOB-VH main circuit breaker in a branch space; vertical main breaker main breaker interiors are also available. Environment: Products sold in the United States. 250 lb-in. For more information, see our A200 Product Overview. Are you wondering how to torque main breaker lugs? Watch this video and find out! This video will show you how to properly torque main breaker lugs to ensure proper installation and long-term Main breaker loadcenters and terminal insulators Install terminal insulators to the service entry cable and line-side lugs of the main breaker device. 125, 250, and 400 A interiors may be suitable for cULus service entrance with vertical main breakers and applicable service entrance barriers. NQ442L2C - Panelboard interior, NQ, main lugs, 225A, Cu bus, 42 pole spaces, 3 phase, 4 wire, 240VAC, 48VDC. Failure to follow these instructions can result in equipment damage. 340 lb-in. Tightening torque for the lug retaining nut is 75 In Lbs. Released for: Schneider Electric USA May 31, 2022 · What is the terminal wire size and torque required for the STANDARD branch neutral bars in all Homeline and QO load centers? Jan 15, 2015 · For example, the torque value given for the main lugs and neutral lug on a 200-amp panelboard is 250 inch-pounds. Feb 27, 2024 · This user manual contains instructions for installing Square D brand NQ circuit breaker panelboards and QONQ load centers. Square D™ QO Load Centers provide faster installation, reliability, and quality. 6-2/0 Al No. Cover for flush or surface Convertible mains Tangential main mounting. It is designed with the same quick-open and Visi-Trip® features and reliability of other QO circuit breaker products, fits into most existing Square D load centers, and can generally be used as a direct replacement for a standard Square D circuit breakers. Nov 11, 2024 · Issue: Torque for Transformer lugs Product Line: LV Transformers Environment: Applies to Lug Kits for Transformers by SquareD/Schneider Electric Cause: Lugs require nuts and bolts properly torqued to attach them to the Transformer terminals Resolution: See attached document for wire binding screw and mounting hardware torque values for the DASK and compression lug kits for low voltage Lugs suitable for 75°C wire Torque QOB connector mounting screws to 18–21 lb-in Torque labels are included on the circuit breakers with load side lug torque requirements Feb 21, 2013 · Does anyone know where I can find the torque specs for 120/240 and 277/480 QO and/or QO-B circuit breakers? Ground/Neutral bars would be an added bonus. ) SQUARE DRIVE TORQUE CHART INDUSTRIALB LTINGIndustrial Bolting, Inc sales | rental | service 888-925-3284 Mar 11, 2022 · Hi Mike, I’ve been reading some of your RVelectricity articles and recently about torque values for the ATS (automatic transfer switch). QO Load Centers from Square D are Underwriters Laboratories ® (UL ®) Listed panelboards. Square D Legacy Circuit Breakers FA/FH/FC/FI, KA/KH/KC/KI, LA/LH/LC/LI, MA/MH, NA/NC, PA/PC and Q-Frame This document is current but may reference obsolete products. Under-torguing = arcing. Could they be metric and actually be 10 mm and 7 mm? 2023 Changes to Torque Codes 2023 NEC 110. To help expedite this inspection, contractor to provide a written list of torque specifications on site for the inspection specific to each piece of electrical equipment, including: main lugs, ground lugs, equipment ground and neutral bus bars, circuit breakers, bolt-in breaker screws, and primary and secondary transformer connections. Oct 24, 2008 · Product Line:Circuit BreakersResolution:The standard Al/Cu lugs are rated at 225 lb-in and require a 5/16 in hex bit torque wrench. Jan 30, 2018 · Make a torque sheet in word, pan. Listed torque values are for maximum conductor sizes accommodated. If it had been a neutral, we could have had a pretty justifiable bill from the tenants. QOM2200VH - Main breaker, QO, 200A, 2 pole, 120/240VAC, 22kA, bolt on. Introduction HomelineTM Combination Service Entrance Devices are designed to restrict the installation of more overcurrent devices than that number for which it was designed. (51 N•m) Main Lug Compartment Torque Connection Connection Torque Values for Main Lug Compartments and Connection Torque Values for Main and Branch Feeders provide main disconnect and branch feeder torque values, which apply to both aluminum and copper conductors. It is compatible with aluminum or copper wire #6 - 2/0. NQ Panelboards are convertible from main lugs to main circuit breaker. Jun 25, 2008 · My inspector is asking me to have the torck wrench and paper work to show the appropriate foot pound torck for all my connections at the time of final inspection. Use the 1/4-20 screw x 11/16 in. He was nice enough but now need to re-inspect the lugs tomorrow, bring the wrench and show the torque. (51 N•m) Mar 19, 2017 · Torque specs can vary based on amperage, or between product lines of the same mfg. LK225AN - Load center accessory, QO/Homeline, lug kit, neutral, 150A to 225A, AWG 4-300 kcmil, aluminum or copper. * Price is “List Price” and may be subject to a trade discount – check with your local distributor or retailer for actual price. lbs or 275 lbs-in. Kits available to replace standard main mechanical lugs with compression lugs, sub-feed lugs, or a vertically mounted main circuit breaker. The AL17 This main lugs interior is rated 400A for 240VAC and 48VDC, has a plated aluminum bus, and 42 pole spaces. Certain lugs require 620 lb-in. Dec 15, 2022 · Issue: Torque specs for switchboard Product Line: Switchboards Environment: QED2, Speed-D Cause: Installation Resolution: Please see pages 53 and 54 of Instruction Bulletin 80043-055-12, 05/2015. QO Load Centers are built on the Square D reputation for reliability, innovation, and circuit protection leadership The Square D brand is the number one choice of more electricians and home builders. Released Dec 27, 2012 · The last few 400a troughs and 200a square d panels I installed made me unsure if the main lugs are actually imperial or metric? I used 3/8" and 1/4" hex sockets on my ratchet and I get the impression they are slightly loose. I'm looking to pick up a Wera torque screwdriver, but at the price point, I want to make sure I'm buying Aug 1, 2022 · Locating the mains rating, bus bar rating, short circuit rating, wiring diagram, cover number, and lug torque specification on Square D™ QO™ and Homeline™ Load Centers. com. 6 ft/lbs. Aug 9, 2022 · Issue: Torque requirements for QO and QOB breakers' wire binding screws and clamp plates Product Line: Circuit Breakers Resolution: The following table shows the torque value requirements for the wire binding screws and clamp plates of QO and QOB circuit breakers: Jan 24, 2021 · These lugs are attached to the main breaker with a flathead screw, and that doesn't seem quite strong enough to hold the lug while torquing. Explore Square D by Schneider Electric™ products, services, tools, and technical support. Pay with interest-free installments. This information can be found on the label behind the panel dead-front. Square D EZ Meter-Pak meter centers provide reliable, versatile, and compact multi metering equipment for multi unit residential and commercial construction. My mistake, he had a right to ask. It has both a UL listing and ANSI certification. Homeline main lug split and it’s riveted to the Main breaker. What is the torque setting for 2 Hots and Ground coming in from the service entrance cables to meter sock? This is a 200 amp square D Homeline breaker panel and #4 aluminum service entrance wires. And May 5, 2025 · If it's a Square D Homeline panel, the torque specs are normally on a sticker on the side of the panel enclosure on the inside. lbs for the main terminals for #4-250mcm. All panels come with a lug torque label, but breaker ratings seem hard to find, a search f all CB specs showed nothing. The torque chart from Fastenal for a 1/2" Grade 8 bolt is 80ft/lbs. If this connection is 1 cubic inch and takes 40 pound x feet then if someone says he torqued this to 20 or 80 pound-feet or pound-inches, you know right off the bat that something may be wrong. Covers included or sold (main lug or main service knockouts separately eliminate offsets *Optional: white and Mono-Flat Top or bottom feed by rotating panels 180 degrees covers available. Main lug interiors equipped with sub-feed or feed-through lugs, where the device feeding the interior is unknown or not a Square D brand device, are rated to 25,000 RMS symmetrical amperes at 600Y/347 Vac maximum for three cycles. bidv mywbfg zwsdste nny bblko vat svpt krduvu puoo nwruvau mfpvde rnnrr tdys imu svcdx