Myers Hubs CrouseHinds Training Module Myers Hubs Outline

Myers Hubs Crouse-Hinds Training Module

Myers Hubs Outline z History z Applications z Product Features z Certifications and Compliances z Types of Myers Hubs z Additional Hubs Available z Marketing Materials

Myers Hubs History • Pre-1949 – Welding was standard to bond coupling to enclosure, to maintain a watertight connection and ground for conduit entering enclosure. • 1949 – Myers Hubs established. Invented the Scru-Tite® Hub. • • Watertight / Dust Tight Joint. Positive Electrical Ground. UL / CSA Approved. Eliminated need for welding. • 1997 – Myers acquired by Cooper Crouse-Hinds.

Myers Hubs Applications • Used in wash down, harsh industrial, outdoors, hazardous, corrosive / chemical atmospheres, for grounding, indoor rigid conduit, OEM, and overseas applications (metric adapters). • In conjunction with enclosures / wireways fabricated from sheet steel, stainless steel, cast, and non-metallic materials. • Industries such as refineries, paper mills, food processing, breweries, waste water treatment facilities, chemical plants, pharmaceutical plants, steel mills, and marine applications.

Myers Hubs Product Features 1 Vibration Proof – Strong, oversize nut with radial serrations assures flush installation and positive grounding. 2 Optional Grounding Screw For Added Safety 3 Captive “O-Ring” Gasket – Impervious to corrosive moisture and petroleum products. Buna-N gasket assures positive water and dust-tight installations. 4 Precision Machine Cut NPT Threads – Positive fit and simple installation.

Myers Hubs Product Features 5 No Welding – Unique serrations on both nut and hub bite into metal assuring a positive electrical ground. (UL approved for use with service entrance conduit. ) 6 Posi-Lok Insulated Throat – Cannot come out. Made from flame retardant Lexan®. Standard in sizes from 1/2” through 4” • Fit Standard Knockouts. • Hub Basic Scru-Tite zinc 1/2” – 2” products available with optional chrome plate finish. (add suffix - CP)

Myers Hubs Certifications and Compliances • UL Listed • CSA Certified – Class I, Division 2 NEC 501 -4(b) – Class II, Division 1 & 2 NEC 502 -4(a)(b) – Class III, Division 1 & 2 NEC 503 -3(a)(b) • For use with NEMA Enclosures 2, 3, 3 R, 4, 4 X, and 12. (Check hub type for individual compliances) • Optional IEC / CENELEC Hubs for: – Zone 1, Ex e II – Zone 1, Eex e II – Zone 1, Aex e II

Myers Hubs - Types Scru-Tite® Hub - ST and STA Series • Available in zinc or aluminum. • Sizes range from 1/4” through 6”. Ground Hub - STG and STAG Series • Available in zinc or aluminum. • Sizes range from 1/2” through 6”. • Provides ground screw on locknut.

Myers Hubs - Types Stainless Steel Hub - SSTG Series • 316 stainless steel construction resists corrosion and pitting in chemical atmospheres. • Sizes range from 1/2” to 2” • Grounding Screw provided on lock nut.

Myers Hubs - Types Through Bulk-Head Fitting - STTB, STTBA, STTTBA Series. • • Available in zinc or aluminum. Available with or without a nipple. Sizes range from 1/2” - 2” For installation of conduit through fire wall or partial bulkheads.

Myers Hubs - Types IEC / CENELEC HUB - STGK or SSTGK Series • • • Available in zinc or stainless steel. Sizes range from 1/2” - 2” in zinc. Sizes range from 1/2” - 2” in stainless. Class I, Zone 1, Ex e II - IEC approved. Class I, Zone 1, EEx e II - CENELEC approvals through DEMKO (European test lab) • Class I, Zone 1, AEx e II - NEC Article 505 approved. • Hub includes increased safety ground terminal and locking screw on lock nut.

Myers Hubs - Types Metric to NPT Adapter - STM and SSTM Series • Available in zinc or stainless steel. • Sizes ranges: – M 20 to 1/2” up to …. . – M 75 to 2 1/2” (zinc) – M 63 to 2” (stainless steel) • Used to convert a threaded metric entry to an NPT entry.

Myers Hubs - Types Ground Nut - STGN and STAGN Series • Available in zinc or aluminum. • In zinc sizes range from 1/2” - 2”. • In aluminum sizes range from 1/2” – 6”

Myers Hubs - Types Cap-Off - STC and STAC Series • • Available in zinc or aluminum. Zinc Sizes 1/2” - 2”. Aluminum Sizes 1/2” – 1” Economical way to cap-off a knock out. Drain Plug • Available in aluminum or stainless steel. • 1/2” trade size. • Available with locknut for 1/2” KO or with NPT threads for threaded opening. • Designed to drain any accumulated condensation.

Additional Hubs Raintight Malleable Iron Conduit Hubs Product Features • Male thread type • Tapered Female thread for rigid conduit & IMC • Recessed O-ring gasket assures raintight & dust tight connections • Insulated throat provides smooth pulling surface • Locking screw on nut doubles as a grounding screw for added safety • Compete sizes range from 1/2” – 6”

Additional Hubs Iron Space Saver Conduit Hubs Product Features • Male thread is on the nut for space saving • Quick and easy when installing rigid conduit nipple between two existing enclosures • Insulated throat provides smooth pulling surface • Furnished with SG sealing gasket • Hub fits standard knockouts. No special tools required

Myers Hubs - Marketing Materials z Commercial Products Catalog z Cross Reference Guide z Commercial Products Pocket Guide z Myers Hubs Product Brochure z www. crouse-hinds. com