49-56.qxp 8/22/2012 7:27 PM Page 49 Myers™ Hubs Applications: Hub Basic Scru-Tite® – NEMA 2, 3, 3R, 4, 4X and 12 • Myers™ Scru-tite® and Ground hub are used in the termination of electrical circuits through wall of the enclosure Zinc UL File No. E-27258 • Resistant to a variety of chemicals, including acetic, citric and salt water. • The O-ring is a special "Viton (75)" and has excellent chemical resistance. • Hub is provided with a stainless steel ground nut. Features: • Vibration proof • Grounding screw for added safety • Captive o-ring gasket • No welding • Posi-Lok insulated throat (insuliner) • Fit standard knockouts • Easy installation Cat. # Size Unit Qty. Wt. Lbs. Per 100 ST ST ST ST ST ST ST ST ST ST ST ST ST 3 /8" /2" 3 /4" 1" 11/4" 11/2" 2" 21/2" 3" 31/2" 4" 5" 6" 25 25 25 25 10 10 10 5 2 2 2 1 1 12 20 32 40 60 70 90 200 250 300 350 600 800 03† 1† 2† 3† 4† 5† 6† 7† 8 9 10 11* 12* 1 Conduit Hubs • Ideal for pharmaceutical, chemical and food processing, pulp/paper and nuclear industries. †Optional Nickel-Chrome Plate Finish. Add suffix -CP. See price list. *Not supplied with insulator. • Controlled thread lengths • NPSL on male thread Hub Basic Scru-Tite® – NEMA 2, 3, 3R, 4, 4X and 12 • No sharp edges (along parting line) • Male thread (NPT) Aluminum UL File No. E-27258 Certifications and Compliances: • NEC/CEC: Class I, Division 2 Class II, Division 1 & 2 Cat. # Size Unit Qty. Wt. Lbs. Per 100 Class III, Division 1 & 2 STA STA STA STA STA STA STA STA STA STA STA STA / 2" / 4" 1" 11/ 4" 11/ 2" 2" 21/ 2" 3" 31/ 2" 4" 5" 6" 25 25 25 10 10 10 5 2 2 2 1 1 8 16 16 30 30 50 80 100 150 150 300 300 • UL Listed – UL Standard 514B • CSA Certified – Certified by UL to CSA standard C22.2 No. 18 • NEMA Type 2, 3, 3R, 4, 4X, 12 (std hub) • NEMA Type 2, 3, 3R, 4, 4X, 12 (ground hub) Standard Materials: • Nut: Zamek-2, Zamek-3, Aluminum (Al 360), Stainless (316) • Body: Zamek-2, Zamek-3, Aluminum (Al 360), Stainless (316) • Insuliner: Lexan 1 2 3 4 5 6 7 8 9 10 11* 12* 1 3 *Not supplied with insulator. • O-Ring: Gasket Vi Ton • Ground Screw: Steel Stainless Steel Ground Hub – NEMA 2, 3, 3R, 4, 4X and 12 Standard Finishes: Stainless Steel – Type 316 UL File No. E-59509 • Aluminum: Natural • Zinc: Natural Optional Materials and Finishes: • Stainless: Natural Cat. # • Zinc: Chrome-plate SSTG SSTG SSTG SSTG SSTG SSTG SSTG SSTG SSTG SSTG www.crouse-hinds.com US: 1-866-764-5454 1 2 3 4 5 6 7 8 9 10 Size Unit Qty. Wt. Lbs. Per 100 /2" /4" 1" 11/4" 11/2" 2" 21/2" 3" 31/2" 4" 10 10 10 5 5 5 2 2 2 2 20 30 43 55 73 95 — — — — 1 3 CAN: 1-800-265-0502 Copyright© 2012 Cooper Crouse-Hinds 49 49-56.qxp 8/22/2012 7:27 PM Page 53 Myers™ Hubs SCHEDULE OF DIMENSIONS J "O" Ring K Cat. # A B C D Min. Max. F G H C.S. O.D. Min. Max. /4 3 /8 1 /2 3 /4 1 11/4 11/2 2 21/2 3 31/2 4 5 6 ST ST ST ST ST ST ST ST ST ST ST ST ST ST 13/2 13/2 111/32 115/32 121/32 111/16 111/16 13/4 27/32 25/16 23/8 27/16 215/16 3 /16 11/8 17/16 123/32 2 23/8 23/4 31/4 33/4 43/8 5 51/2 67/8 711/16 /32 21 /32 13 /16 29 /32 11/32 11/32 11/32 13/32 19/32 13/8 17/16 11/2 2 2 /8 1 /8 3 /16 3 /16 1 /4 1 /4 1 /4 1 /4 1 /4 1 /4 1 /4 1 /4 1 /4 5 /16 .350 .468 .591 .783 .997 1.311 1.529 1.964 2.346 2.915 3.371 3.825 4.795 5.762 .364 .493 .622 .824 1.049 1.380 1.610 2.067 2.469 3.068 3.548 4.026 5.047 6.065 1 /4 NPT 3 /8 NPT 1 /2 NPT 3 /4 NPT 1 NPT 11/4 NPT 11/2 NPT 2 NPT 21/2 NPT 3 NPT 31/2 NPT 4 NPT 5 NPT 6 NPT 1 /4 NPS 3 /8 NPS 1 /2 NPS 3 /4 NPS 1 NPS 11/4 NPS 11/2 NPS 2 NPS 21/2 NPS 3 NPS 31/2 NPS 4 NPS 5 NPS 6 NPS 60° 60° 60° 60° 60° 60° 60° 60° 60° 45° 45° 45° 45° 45° 3 /21 3 /32 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 1 /8 3 /4 15 /16 11/2 17/16 13/4 21/8 21/2 3 31/2 41/8 45/8 51/8 61/2 71/4 /64 43 /64 55 /64 11/16 121/64 143/64 159/64 225/64 257/64 333/64 41/64 433/64 537/64 641/64 /16 /16 7 /8 11/8 13/8 13/4 2 21/2 3 35/8 41/8 45/8 511/16 63/4 1 E 02 03† 1† 2† 3† 4† 5† 6† 7† 8 9 10 11* 12* 15 21 1 35 Conduit Hubs Pipe Size 9 11 *Not supplied with insulator. Options: Description † Optional Nickel-Chrome Plate Finish. See price list. Tolerance Decimal Fractional Angular & Draft +/–.010 +/–1/16 +/–2° Suffix -CP Cat. # Material ST STA SSTG Zinc Aluminium Stainless Dimensions and materials specified are subject to change without prior notice. PLAN VIEW SIDE VIEW SPACING CHART FOR MYERS HUBS "D" dimension indicated maximum panel thickness which hub will accommodate. CONDUIT OR PIPE SIZE HOLE COND. SIZE. SIZE. /16 11 /16 7 /8 11/8 13/8 13/4 2 21/2 3 35/8 41/8 45/8 511/16 63/4 9 /4 3 /8 1 /2 3 /4 1 11/4 11/2 2 21/2 3 31/2 4 5 6 1 /4 1 1 /16 15/32 15/16 17/16 19/32 125/32 131/32 27/32 215/32 225/32 33/32 311/32 41/32 413/32 19 /32 /8 3 /2 1 /4 1 11/4 11/2 2 21/2 3 31/2 4 5 6 113/16 131/32 25/32 211/32 219/32 227/32 35/32 315/32 323/32 413/32 425/32 31 /32 21/8 25/16 21/2 23/4 3 35/16 35/8 37/8 49/16 415/16 11/8 21/2 211/16 215/16 33/16 31/2 313/16 41/16 43/4 51/8 15/16 27/8 31/8 33/8 311/16 4 41/4 415/16 55/16 11/2 33/8 35/8 315/16 41/4 41/2 53/16 59/16 13/4 37/8 43/16 41/2 43/4 57/16 513/16 2 41/2 413/16 51/16 53/4 61/8 25/16 51/8 53/8 61/16 67/16 25/8 53/4 63/16 611/16 27/8 71/8 73/8 39/16 73/4 315/16 3 1 11/4 113/32 117/32 111/16 17/8 21/16 25/16 29/16 27/8 33/16 37/16 41/8 41/2 11 /16 19/16 111/16 127 /32 21/32 27/32 215/32 223/32 31/32 311/32 319/32 49/32 421/32 27/32 Minimum space from center of pipe or conduit to nearest obstruction. 1. Dimensions in top row (boxed squares) are centers for conduits of same size. Example: How close may 3" conduits be spaced? Answer 41/2" 2. Dimensions in gray shaded squares are for centers of conduits NOT of the same size. Example: What is the minimum spacing for 2" and 3/4" conduit? Read down column marked 3/ 4" to figure opposite 2" and find dimensions is 219/ 32". 3. Minimum spacing dimensions as shown will give approximately 1/8" clearance between locking nuts. www.crouse-hinds.com US: 1-866-764-5454 CAN: 1-800-265-0502 Copyright© 2012 Cooper Crouse-Hinds 53