T&B Conduit Fittings

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T&B Conduit FittingsRigid and Intermediate Metal Conduit Fittings(B)(C)(E)370 Series370AL Series(A)PredeterminedCompression(D)Threaded Hubs (Bullet ® Hubs)(For Threaded Rigid Metal Conduit/IMC/PVC Coated Rigid Metal Conduit)Application• To connect threaded metal conduit(ferrous rigid/nonferrous rigid/PVCcoated/or intermediate metal) toa threadless opening in a box orenclosure in outdoors or indoorlocation exposed to continuousor intermittent moisture.• Suitable for hazardous location useper following:(i) Class II, Division 1 Groups E, F, G,CEC Rule 18-202Class II, Division 2 Groups E, F, G,CEC Rule 18-252Class III, Division 1 Rule 18-302Class III, Division 2 Rule 18-352(B)(C)(E)(G)(A)(F)(D)(G)• To positively bond conduit to boxor enclosure.Features• Rugged steel/malleable iron/copperfreealuminum construction.• Tapered internal threads forwatertight/dust tight union (A).• Threads relieved to preventbottoming of conduit ensuring soundassembly (B).• Recessed sealing ring at box end.Captive sealing ring (C).• PVC coated 485 Series(i) Protects fitting from extremelycorrosive surroundings withoutaffecting integrity of electricalgrounding path (F).(ii) Provided with overlapping sleevefor additional seal (G).Canadian Electric Code Rule 10-602states that, “Dissimilar metals wheredissimilar metals cannot be avoided atbonding connections as indicated inRule 2-112 (2). Connections shall bemade using methods or material thatwill minimize deterioration fromgalvanic action”.485 Series• Hardened steel/malleable iron/copper-free aluminum locknutsdesigned to provide high qualityground continuity; extended reach oflocknut permits clamping on thinboxes and enclosures (D).• Insulated throat protects conductors,prevents abrasion and thinning ofconductor insulation, reduces wirepull effort (E).Joint Industrial Council (JIC) ElectricalStandards also forbid dissimilar metalsin contact for the same reason andrequire that the fittings for metal conduitbe of malleable iron or ductile iron andhave impact strength comparable tothat of the conduit.“Copper-free Aluminum”• Copper-free aluminum castingsfor fittings have a maximum of 0.4%copper. The most detrimental effect ofhigher percentage of copper onaluminum base alloy is its decrease incorrosion resistance.24
T&B Conduit FittingsRigid and Intermediate Metal Conduit FittingsThreaded Hubs (Bullet Hubs)—continued(For Threaded Rigid Metal Conduit/IMC/PVC Coated Rigid Metal Conduit)Standard Material370-485 Series 370ALBody 1/2” thru 1” Steel All Copper-Free Aluminum1-1/4” thru 6” Malleable IronLocknut 1/2” thru 2” Steel (hardened) 1/2” thru 2” Steel (hardened)2-1/2” thru 6” Malleable Iron 2-1/2” thru 4” Copper-freeAluminumScrews Steel (hardened)‘O’ Ring Buna NInsulator NylonCoating PVCStandard Finish370 Series 370AL Series 485 SeriesHub Electro-zinc Plated As Cast PVC—Outside.Chromate Coated. Electro-zincLocknuts All Ferrous locknuts Plated ChromateElectro-Zinc PlatedCoated Inside.and Chromate Coated.Screws All Electro-Zinc Plated& Chromate Coated.Range370 Series 1/2” thru 6” Conduit370AL & 485 Series 1/2” thru 4” ConduitAll hub threads—straight pipeAll female threads—taper pipe(NPT)ConformityU.L. 514CSA 22.2 No. 18ANSI C80.4; ANSI C33.84NFPA 70-1978 (ANSI)NEMA FB-1JIC EGP1; JIC EMP 1Federal Specification W-F-408Federal Standard H-28 (Threads)25
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Page 60 and 61: T&B Conduit FittingsFlexible Cord a
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T&B Conduit FittingsFlexible Cord a
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T&B Conduit FittingsFlexible Cord a
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T&B Conduit FittingsPortable Cord a
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T&B Conduit FittingsPortable Cord a
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T&B Conduit FittingsService Entranc
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T&B Conduit FittingsService Entranc
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T&B Conduit FittingsLiquidtight Fle
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T&B Conduit FittingsArmoured Cable
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T&B Conduit FittingsNonmetallic She
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Type LTT&B Conduit FittingsLiquatit
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T&B Conduit FittingsLiquatite ® Fl
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Type CEA—Non-Halogen, Low Smoke,
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Type ZHLA—Non-Halogen, Low Smoke,
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Corrlok ® System—Type CLFR, Low
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Flexible Metal Conduit (Extract fro
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T&B Conduit FittingsConduit—Chemi
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T&B Conduit FittingsConduit—Chemi
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Alphanumeric IndexCatalogue Page Ca
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Notes175
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T&B Conduit Fittings

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