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Selection and Application GuidesentronBUSWAY SYSTEMGlobal Power Distribution ApplicationsInstalls with Minimal HardwareFlexible, Compact System

Siemens Is Proud to Introduce the NEW SENTRONTM SLVB BUS PLUGThe Right Plug for Demanding Applications Dual stab busway interlock prevents installation or removal of the bus plugwith the switch in the ON position Dual door interlocks prevent cover from being opened when the switchin the ON position and prevent switch from being turned ON when thecover is open Secure bolt-on mounting Spring loaded pad lockable latch to prevent unauthorized access Heavy duty, double breaking rotary switch — fast, positive, and reliablefor severe applications Direct drive mechanism — the operating handle mounts directly to theswitch mechanism for fewer moving parts Replacement parts — many components can be replaced from a stock ofeasy-to-install replacement parts Rugged, easy-to-grip handleHighly visible ON/OFF indicationHandle lockout design provides for up to three padlocksCompact footprint for either horizontal “SLVBH” or riser “SLVBR” applicationsHook stick operablePower Delivery Solutions for a Broad Range of ApplicationsSelecting the Right Busway Solution for your Unique Requirements.When you need a cost-effective power delivery solution for an industrial plant, ahospital, shopping mall, or high tech environment, you face the challenge of balancingperformance with value to efficiently distribute power throughout your facility.Only Siemens offers you the industry’s most complete and modern line of buswayproducts — an extensive range of options that lets you match your site-specificrequirements with an optimized power delivery solution — around the corner oraround the globe. These innovative solutions encompass the world’s mostcomprehensive and technologically advanced busway products for the automotive,industrial, commercial/institutional, and high-rise multi-occupancy markets.While other suppliers of power delivery systems provide only one choice tosatisfy a diverse range of requirements, Siemens offers you a selection of fivedifferent types of busway, giving you the flexibility to choose the right solutionfor your unique application.For added convenience, our busway products and accessories are readily available,easy to order and to install. Our product lines are specifically designed to complywith local and international standards and to satisfy the final measure of yourprofitability.a low total installed cost.

SENTRON Busway Selection & Application GuideTable of ContentsSENTRON Busway 225-5000AmpOverviewCatalog Numbering System2–45Technical Data6–7Straight Sections — Plug-In, Riser and Feeder8–9Elbows10 – 11Offsets12Combinations13Tees14End Tap Boxes15 – 16Center Tap Boxes17In-Line Disconnect Cubicle and Expansion Fittings18Reducers and Phase Rotation Fittings19Service Heads20 – 21Hangers22 – 24End Closers24Roof and Wall Flanges25Flanged Ends26 – 27Panelboards and Meter Center Modules28Molded Case Circuit Breaker Cubiclewith Meter Tap Stack Provisions29Installation and Application Information30Busway Order Entry Checklist31SENTRON Busway Quick Reference32SENTRON Busplugs33 – 41General Information42 – 43

SENTRON Busway Selection & Application GuideBusway OverviewSENTRON Busway for Global PowerDistribution ApplicationsBuilding on a solid foundation ofadvanced products for the constructionindustry, the Siemens SENTRON nameis recognized worldwide as synonymouswith quality and consistent performance.SENTRON Busway delivers impressivefeatures and benefits that make itideal for many types of industrial andconstruction implementations.Engineered to ensure the safe andefficient distribution of power inindustrial, commercial, and institutionalenvironments worldwide, SENTRONampacities range from 225A to 5000AUL and IEC. Thanks to an innovativedesign, you benefit from laborsavinginstallation and a flexible, compactbus system that is an ideal fit for mostapplications. In fact, SENTRON Buswayis one of the industry’s least laborintensive systems.SENTRON Busway installs with minimalhardware and often costs less thancable and conduit installations. Thelightweight aluminum housing actsas an integral ground, joint stacksconnect with splice plates featuring asingle bolt design, and bus plugs andcable tap boxes offer the industry’slargest wire bending space. An optional200% neutral within the bus bar housingaccommodates harmonics common intoday’s power systems.SENTRON Busway conductors areinsulated with a state-of-the-art epoxyinsulation system, which is appliedusing an electrostatic spray processfor optimal insulation integrity.Exemplifying the spirit of continuinginnovation, SENTRON Busway isnow available with economical andconvenient elbow stacks for changingleft, right, up or down directions at90 degrees.Siemens Busway Business usesindustry leading technology in all itsmanufacturing processes. From busbar fabrication to Electrostatic SprayEpoxy insulation, all the processesused in the manufacturing of SiemensSENTRON Busway are electronicallycontrolled to provide for consistent,high quality results, making SENTRONBusway products best in its class.HousingSENTRON Busway incorporates an allaluminum housing. This lightweighttotally enclosed, non-ventilated housingresists rust and other elements, distributesheat away from the conductors, andprovides an excellent ground path.The totally enclosed design alsoeliminates the need for derating ofthe system regardless of installationorientation. The housing is coveredwith an electrostatically applied lightgray ANSI 61 polyester urethanepowder paint that is scratch resistantand has a 1,000-hour salt sprayresistance rating.ConductorsSENTRON Busway conductors havea compact construction and can beconfigured as 3-phase 3-wire, 3-phase4-wire, or 3-phase 4-wire with 200%neutral. The conductors may beordered in copper (98% conductivity),1000A//in2 M-Rated Copper, Aluminum(58% conductivity) and 750A/in2L-Rated Aluminum. The optional 200%neutral helps to handle harmonicconditions that may exist. This systemis especially useful with dischargelighting (fluorescent) and computerinstallations. This will help to minimizeoverheating and prolong the life cycleof your power distribution equipment.50% INTERNALGROUND (PE)A PHASE (L1)B PHASE (L2)And, of course, SENTRON Busway iscertified to design standards worldwide,including UL, NEMA, IEC, CSA, VDEand BS.See page 30 for installation andapplication information.2C PHASE (L3)100% NEUTRAL (N)200% NEUTRAL (N)GroundSENTRON Busway offers groundoptions to meet your specifications:standard integral aluminum housingground and optional internal groundingbars. An optional isolated ground isalso available which is especiallyuseful in applications where a cleanground is needed.PlatingAll bus bars are electroplated withtin. This unique tin plating providesexcellent conductivity and resistsoutside elements from attaching tothe bars. Optional silver plating isalso available.InsulationSENTRON Busway is insulated withan Epoxy Powder Coating systemdesigned by Siemens engineers,Epoxy System engineers, and EpoxyPowder specialists, specifically forSiemens Busway products.The Siemens exclusive ElectrostaticSpray insulation process producesuniform application of Epoxy powderover the entire conductor bar. This isfurther enhanced by the inline filterprocess and magnetic separator thathelps to eliminate contaminantscommon to fluidized bed systems.The electrostatic application alsoprovides a better coating consistencythan that of the older fluidizedbed process. The combination ofelectrostatic spray and lower oventemperatures produces a consistentcoverage with fewer impurities andpinholes in the insulation. The loweroven temperatures reduce the riskof bar annealing, which affects theoverall quality of the system.SENTRON Busway insulation is Class B,130ºC Rated. Every bus bar andcompleted assembly is dielectricallytested to ensure the insulation isfree of defects.

SENTRON Busway Selection & Application GuideBusway OverviewJoint StackEach SENTRON Busway piece is shippedwith a joint stack and joint coversinstalled at one end of the buswayand a shipping end protector at theother end. The joint stacks feature asingle bolt design and a special, torqueindicating, double headed break-offbolt. This eliminates the need for torquewrenches and assures proper torque atinstallation of 55 ft.-lbs.(68 N-m). Whenthe proper torque value is achieved,the top bolt head will shear off. Eachjoint stack allows for /- .625 inches(15.8mm) adjustability at each joint.Over adjustment is prevented by thejoint covers, which will only allow a.625 inch (15.8mm) adjustment whenthe knockouts on the joint cover areremoved. It is possible to remove anyjoint connection assembly to allowelectrical isolation or removal of abusway length without disturbingadjacent busway lengths. Isolationjoint stacks are available and used toelectrically isolate a busway section(s)within a busway run. For easy visualidentification, isolation joint stackassemblies are painted white.Joint AssemblyStandardsAll SENTRON Busway products meetthe following standards:UL 857NEMA BU1CSA C22.2IEC439-1 (1993), IEC439-2 (1993),IEC529 (1989)BS EN 60529BS EN 60439-1, 60439-2UL 1479DIN 4102 Parts 9 &12BS 6387 Parts 11.1 and 11.2Plug-In OpeningsSENTRON Busway offer plug-instyle busway which feature plug-inopenings rated for finger safety toIP2X in accordance with IEC 529 andBS EN 60439-1, -2 and BS EN 60529.Each plug-in opening has a reversiblehinged dead front designed to protectthe contact surfaces from dirt, dustor moisture. Gasketing is used whereapplications require a splash proof(IP55) rating.IP RatingsSENTRON Busway is available in a varietyof IP ratings. Use the chart below todetermine the IP rating that best fitsyour application needs.TestingEach piece of SENTRON Busway isfactory tested before shipping. Testsperformed include dielectric tests,which are used to insure integrityof insulation. In addition, SENTRONBusway is tested in accordance withboth UL and IEC standards. AllSENTRON Busway is manufacturedand inspected in an ISO 9001:2000registered facility.Labor SavingsUsing SENTRON Busway instead of cableand conduit can create savings of upto 20 – 30% on total installed costs.SENTRON busway is lightweight,compact and takes half the time toinstall as cable and conduit. SiemensSENTRON Busway – Cable/ ConduitConversion Software Program will showyou side by side comparisons of buswayvs. cable/conduit. These comparisonsinclude material costs, labor costs, billof materials, and technical informationbetween busway and cable/conduit.Contact your local Siemens sales officeto find out more information, or visitour web site at www.sea.siemens.com.Plug-In Opening and CoverLevels of Protection DescriptionCodeDescriptionIP 2XPlug-In outlet protects against access to live parts by .472 in. (12mm)test probe, even with cover opened. Finger Safe.IP 40Enclosure protects against entry of .039 in. (1.0mm) test probe.Indoor (Typical UL Designation)IP 55Enclosure protects against entry of dust and water jets. Splash Proof.IP 66Enclosure is dust tight and protects against powerful water jets.Outdoor (International Only)NEMA 3R Enclosure protects against rain, sleet and damage from ice formation.Outdoor – NAFTASENTRON BuswayFeederPlug-InSENTRONBus Plugs 3