Technical Data TD01701005E Effective March 2015 Supersedes June 2013 IEC low voltage busway Pow-R-Way III Contents Description Page General description. . . . . . . . . . . . . . . . . . . . . . . . 2 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Construction details. . . . . . . . . . . . . . . . . . . . . . . . 2 Electrical data . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 General description IEC standards Eaton Pow-R-Way III® is a 660 V, totally enclosed, non-ventilated, sandwich bus design available with copper busbars in ratings from 225 to 6300 A or with aluminum busbars from 225 to 4800 A. Pow-R-Way III is available in outdoor feeder, indoor feeder, indoor plug-in, and indoor sprinkler-proof configurations.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Construction details (Figure 3) Integral ground Conductor/insulation system The two-piece, extruded aluminum housing is designed and manufactured as a 50% integral ground path (integral earth) and is fully fault rated. The system ground continuity is maintained through each joint by the ground path end blocks, ground path plates, and joint covers.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Construction details (continued) DTI SmartBolts® 200% neutral option (Figure 4) DTI SmartBolts are optional torque/tension indicating bolts that can be used in any standard Pow-R-Way III bridge joint. (See Page 5, Pow-R-Bridge Joint.) In place of checking each joint connection with a torque wrench, DTI SmartBolts provide a visible indication of a loose or tensioned condition.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Construction details (continued) Pow-R-Bridge (Figure 6) Pow-R-Way III joint connections are made with the Pow-R-Bridge joint package, which is installed on each section of busway prior to shipment. A double-headed, torque-indicating bolt is provided to ensure that proper installation torque is achieved.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Construction details (continued) Pow-R-Way III feeder busway (Figure 9 and Table 6) • 225 to 6300 A copper • 225 to 4800 A aluminum CL CL T Straight sections of feeder busway can be supplied in any length, at 3.2 mm (1/8 inch) increments, from a 406.4 mm (16.00 inch) minimum to a 3 m (10 ft) maximum. Figure 9 illustrates the configuration of feeder busway and Pow-R-Bridge for the available ampere ratings.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Construction details (continued) CL Pow-R-Way III plug-in busway (Figure 10 and Table 7 and Table 8) 304.8 (12.00) CL 609.6 Spacing (24.00) T • 225 to 6300 A copper • 225 to 4800 A aluminum CL CL T Configuration A Top View 1 Bar Per Phase F Straight sections of plug-in busway are made only in 609.6 mm (24.00 inch) incremental lengths with a maximum length of 3 m (10 ft).
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Electrical data Table 10. IEC 439-2 ratings Table 9. Line-to-line voltage drop (mV per meter) IEC 439 ampere rating IEC 439 ampere rating Copper 225 400 630 800 1000 1200 1400 1550 1800 2250 3000 3200 3800 4500 5800 6300 Aluminum 225 400 630 800 1000 1150 1450 1800 1900 2200 3400 3800 4800 Percent power factor 50 60 70 80 90 100 26.23 47.21 27.87 50.16 29.18 52.46 29.84 54.10 30.16 54.10 26.23 47.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Electrical data (continued) Housing ground vs. internal ground Eaton Pow-R-Way III busway offers a variety of grounding options. Two of which are 50% integral housing ground and 50% internal ground. Integral Housing Ground The 50% internal ground option has a separate ground conductor internal to the housing, which is rated 50% of the phase conductor.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data Dimensions—busbar and housing Table 12. Three-wire with no neutral Cu Al Phase bar size (depth and width) (mm) 225 400 630 800 1000 1200 1400 — 1550 1800 2250 — 3000 3200 3800 4500 — 5800 6300 225 400 630 — — — 800 1000 1150 1450 1800 1900 2200 — — 3400 3800 4800 — 6.4 x 41.1 6.4 x 41.1 6.4 x 41.1 6.4 x 41.1 6.4 x 41.1 6.4 x 57.2 6.4 x 69.9 6.4 x 69.9 6.4 x 82.6 6.4 x 108.0 6.4 x 139.7 6.4 x 158.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Dimensions—busbar and housing (continued) Table 14. Four-wire with 200% neutral Cu Al Phase bar size (depth and width) (mm) 225 400 630 800 1000 1200 1400 — 1550 1800 2250 — 3000 3800 4500 — 5800 225 400 630 — — — 800 1000 1150 1450 1800 1900 2200 — 3400 3800 4800 6.4 x 41.1 6.4 x 41.1 6.4 x 41.1 6.4 x 41.1 6.4 x 41.1 6.4 x 57.2 6.4 x 69.9 6.4 x 69.9 6.4 x 82.6 6.4 x 108.0 6.4 x 139.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Weights Table 15.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Rearward Fittings Upward There is a fitting to meet every application need: flanges, elbows, offsets, tees, cable tap boxes, weatherheads, transformer connections, power take-off sections, reducers, adapter cubicles, expansion joints, and end closures. Forward These fittings, along with standard and minimum dimensions, are described on the following pages.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Table 16. Forward and rearward elbows Traditional indoor and outdoor elbows (Figure 16) IEC 439 ampere rating Cu Al Dimensions in mm Minimum leg lengths X 225 400 630 800 1000 1200 1400 — 1550 1800 2250 — 3000 3200 3800 4500 — 5800 6300 330.2 330.2 330.2 330.2 330.2 330.2 342.9 342.9 342.9 355.6 368.3 381.0 406.4 419.1 469.9 495.3 520.7 571.5 584.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Table 18. Forward/rearward corner joints Corner joint elbows (Figure 17) IEC 439 ampere rating Dimensions in mm The Pow-R-Way III corner joint elbow can be installed in areas where a traditional 90° turn could never have been accomplished before.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Table 20. Upward/downward corner joints (continued) Dimensions in mm IEC 439 ampere rating Housing ground Cu Al X Y X Y X Y 225 400 630 — — — 800 1000 1150 1450 1800 1900 2200 — — 3400 3800 4800 — 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 119.6 127.0 127.0 127.0 127.0 127.0 127.0 127.0 127.0 127.0 127.0 127.0 127.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Special angle elbows Special angle elbows are traditional elbows that allow the direction of the busway runs to change at angles greater than 90°. They allow easy routing through non-traditional corridors. The four types offered are forward, rearward, upward, and downward. See minimum leg lengths for each type listed in Table 20 and Table 21. Table 20.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Flush Flange Standard and flush flanges (Figure 19) Flanges provide a direct connection to low voltage switchgear, switchboards, motor control centers, and other apparatus.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) CL CL Elbow flanges (Figure 21) An elbow flange is a combination of a standard elbow and a standard flange fabricated into a single fitting. Elbow flanges are typically used when the minimum leg lengths for either the standard elbow or standard flange cannot be maintained. Minimum leg lengths are listed in Table 23 and Table 24.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Offsets (Figure 22) An offset is used to avoid obstacles and to conform to the building’s structure. It is two elbows fabricated into a single fitting for use where space restrictions prohibit the use of two standard 90° elbows. The minimum leg lengths are listed in Table 25 and Table 26. NNote: All dimensions are to the centerline of the Pow-R-Bridge. CL Y CL 76.2 (3.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) CL Combination offsets (Figure 23) Combination offsets are used to conform to the building’s structure and change direction, using a small amount of space. They are two different oriented elbows fabricated into a single fitting. Forward or rearward directions are determined by the “T” and “F” locations. Please refer to Page 14. Minimum leg lengths are listed in Table 16 and Table 17.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) CL Forward Tees (Figure 24) A tee is a busway fitting suitable for connection in three directions. The minimum leg lengths are shown in Table 28 and Table 29. CL X Minimum leg dimensions in mm Cu Al X A Y B C 225 400 630 800 1000 1200 1400 — 1550 1800 2250 — 3000 3200 3800 4500 — 5800 6300 225 400 630 — — — 800 1000 1150 1450 1800 1900 2200 — — 3400 3800 4800 — 330.2 330.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Crosses (Figure 25) A cross is a busway fitting suitable for connection in four directions. It is applied when a bus run must branch off in three directions, all in the same plane. Table 30.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) 965.2 (38.00) End cable tap box (Figure 26) End cable tap boxes are used to feed a run of busway with cable and conduit or where loads served by busway are connected without the need for overcurrent protection. For indoor applications, the “T” side, side opposite “T,” and the end panel are removable for access to the lugs.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Center cable tap box (Figure 27) A Center cable tap boxes are used to center feed a run of busway with cable and conduit or where loads served by the busway are connected without the need for overcurrent protection. For indoor applications, the “T” side, side opposite “T,” and the end panel are removable for access to the lugs.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Weatherheads (Figure 28) Weatherheads are used for service entrance connections to busway. The side opposite of “T” is removable for access to the lugs. NNote: All dimensions are to the centerline of the Pow-R-Bridge. Table 35.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Phase Transpositions (Figure 30 and Figure 31) Expansion joints (Figure 29) Phase transposition fittings are used in applications where a phase rotation is needed due to a change in phasing from the source equipment to the load equipment. Both 90° and 180° rotations are possible. In each case, all conductors are rotated.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Three-phase transformer taps (Figure 33) Single-phase transformer taps (Figure 32) Three-phase transformer taps are used when making connections to a three-phase transformer. The bus extensions do not include drilling or lugs. Single-phase transformer taps arrangements are used for connections to three single-phase transformers.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Table 41. Transformer throat connections Transformer throat connections (Figure 34 and Figure 35) IEC 439 ampere rating A transformer throat is used when making connections to a liquidfilled substation transformer. All transformer throat connections include flexible connectors between the transformer low voltage spades and Pow-R-Way III busbars.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Protected reducers (Figure 38) Transformer flange connections (Figure 36 and Figure 37) Protected reducers are used to reduce the ampacity of busway using either a circuit breaker or a fused, non-automatic circuit breaker overprotection device. Both serve as a disconnecting means.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Table 43. Available Pow-R-Way III adapters Pow-R-Way III adapters (Figure 40 and Figure 41) Busway types Brand Minimum adapter length in mm Low impedance busway Low impedance plug-in busway Pow-R-Way busway Pow-R-Way II busway CP2 Safetybus CP3 Safetybus CP4 Safetybus Competitive busway Westinghouse Westinghouse 1524.0 1524.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Wall/floor flanges (Figure 42) Wall and floor flanges are used to fit around the busway and close off the opening made to allow the bus run to pass through a floor or wall. Wall and floor flanges are for cosmetic purposes only and do not provide any type of vapor or fire barrier.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) 1 Bar Per Phase Only A Horizontal hangers One hanger is provided for every 3 m (10 ft) of horizontally mounted busway. The type of hanger supplied is determined by the specific mounting requirements of the busway. (For hook hangers and angle hangers, see Figure 45 and Figure 46.) B C Duct Width Drop rods 12.7 mm (0.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Physical data (continued) Vertical hangers (Figure 47 and Figure 48) When busway is to be installed vertically, a spring suspension type vertical hanger should be used. Vertical hangers are not provided unless specified. This unique hanger equalizes the weight of vertically mounted busway along all supports. A vertical hanger must be used on each floor and at the end of the bus run on the last floor.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Plug-in protective devices T All Pow-R-Way III plug-in units are designed with the safety of the installer and user as the key criteria.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Plug-in device mounting (continued) Plug-in openings are spaced every 609.9 mm (24.00 inches) starting 304.8 mm (12.00 inches) in from the centerline of each bridge joint with a maximum of five openings per side of an individual section of busway. Figure 53 illustrates the number of plug-in openings taken up by each style/size bus plug.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 SPD plug-in devices SPD Series (Figure 54) The Pow-R-Way III plug-in device product offering includes a surge protective device (SPD), which is ideal for busway fed distribution systems. A transient voltage is a random, high energy, short duration electrical anomaly. These high energy surges can disrupt, damage, or destroy sensitive microprocessor-based equipment.
Technical Data TD01701005E Effective March 2015 IEC low voltage busway Pow-R-Way III Special plug-in devices Ground detector/neutralizer bus plug (Figure 56) IQ Energy Sentinel bus plugs (Figure 55) In rare cases, busbars in a busway system pick up static electricity. In order to discharge this potential, a neutralizer and ground detector bus plug is available. The unit has three 18,000 ohm resistors connected between the busbars and the ground.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 OPTIM plug-in devices Digitrip™ OPTIM™ bus plugs (Figure 58) Digitrip OPTIM is a programmable, communicating, microprocessorbased electronic trip unit system for Eaton Series C circuit breakers. OPTIM is available for Pow-R-Way III bus plugs on K-Frame (125–400 A), L-Frame (70–600 A), and N-Frame (400–1200 A) circuit breakers.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Power takeoff sections CL Pow-R-Bridge Power takeoff sections are used to tap up to 1200 A of power off of the busway. A power takeoff section must be used when power in excess of the current-carrying capabilities of the plug-in stabs (800 A) is required. A bolt-on fusible switch or circuit breaker unit can then be bolted to the power takeoff. 176.3 (6.94) 431.8 (17.00) (Minimum) CL P.T.O. T 228.6 (9.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Plug-in device electrical data Table 56. Integrally fused, current limiting circuit breaker Table 55. Circuit breakers 100% rated breakers are not available for use in bus plugs. Contact Product Line for guidance.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Plug-in device physical data A B Guide Pin ON C ON ON OFF OFF Handle C L Plug-in Opening OFF C L C L E F D Clamp and Guide Plug-in Opening and B Figure 63. Bus plugs Table 58.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Construction drawing 0.45 (11.4) 96.00 (2438.4) 111.44 (2830.6) 30.00 (762.0) A15 A14 F A12 A12 Plug-In Unit 120.0 (3048.0) 6.00 (152.4) 150.0 (3810.0) 30.00 (762.0) A12 Outdoor Duct 2500 A 30 4W 25.00 (635.0) A13 Indoor Duct 44.00 (1117.6) A02 A03 17.00 (431.8) 39.00 A06 (990.6) A04 2.00 – 1.00 48.00 (1219.2) A01 25.63 (651.0) A12 All Floors A11 24.00 (609.6) 12.00 (304.8) 36.00 (914.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Installation data Hoisting and positioning busway Pow-R-Way III is manufactured with two sets of lifting eyes at the ends of each piece to facilitate the hoisting and positioning of the busway during installation. Refer to Figure 65 for location of lifting eyes. Incorrect Joint Assembly: No Pow-R-Bridge Incorrect Joint Assembly: ”T“ and ”F“ Labels Misaligned Correct Joint Assembly Figure 66.
IEC low voltage busway Pow-R-Way III Technical Data TD01701005E Final field fit program The contractor can fax the dimensions directly to the factory on the Final Field Fit Fax Release form (see Page 46), which is packed with the original shipment. The field fit section will ship within 5 to 10 working days from the receipt of the release fax. Offset fittings or more than four field fits released at the same time will ship within 15 working days.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Final Field Fit Program Item Release! Email Directly to Greenwood busway factory Ref. Drawing: G.O.#: Item #: Phone #: 864-942-6310 Email Address: buswayfieldfit@eaton.com Customer to provide dimensions indicated by letters on field fit section of busway. In order to help expedite your release please include the GO# and Item# listed above on this sheet in the subject line of your email message.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 Specifications 1.07 Qualifications Part 1—General A. All components shall be of the same manufacturer as the busway. 1.01 Scope A. The contractor shall furnish and install the busway system including all necessary fittings, hangers, and accessories as specified herein and as shown on the contract drawings. B. For the equipment specified herein, the manufacturer shall be ISO 9000, 9001, or 9002 certified. 1.
Technical Data TD01701005E IEC low voltage busway Pow-R-Way III Effective March 2015 2.03 Construction 2.06 Housing The busway and associated fittings shall consist of copper (or) aluminum conductors totally enclosed in a two-piece extruded aluminum housing. Outdoor feeder, indoor feeder, and indoor plug-in shall be interchangeable at the same rating without the use of special adapters or splice plates. Where indicated on the contract drawings, provide indoor, sprinkler-proof, plug-in busway.
IEC low voltage busway Pow-R-Way III Technical Data TD01701005E Effective March 2015 H. Where required, plug-in units of the types and ratings indicated on the contract drawings shall be supplied. Plug-in units shall be mechanically interlocked with the busway housing to prevent their installation or removal while the switch is in the ON position.
Technical Data TD01701005E Effective March 2015 50 EATON www.eaton.
IEC low voltage busway Pow-R-Way III Technical Data TD01701005E Effective March 2015 EATON www.eaton.
Technical Data TD01701005E Effective March 2015 IEC low voltage busway Pow-R-Way III Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com © 2015 Eaton All Rights Reserved Printed in USA Publication No. TD01701005E / Z16087 March 2015 Eaton is a registered trademark. All other trademarks are property of their respective owners.
