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GUB Explosionproof instrument enclosures

Crouse-Hinds series GUB explosionproof instrument enclosures are used to enclose ammeters, voltmeters, wattmeters, varmeters, power-factor meters, tachometer indicators, pressure controls, etc., in a threaded rigid metallic conduit system.  GUBs are approved for use in Class I and Class II hazardous areas often encountered in oil refineries, chemical plants, paint and varnish manufacturing plants, coal processing locations, grain processing plants, and other industrial applications.

Certifications and compliances

NEC/CEC

  • Class I, Division 1 & 2, Group D
  • Class II, Division 1, Groups E, F, G
  • Class II, Division 2, Groups F, G
  • Class III
  • NEMA/EEMAC: 3, 7D, 9EFG, 12
  • UL Standard: 1203
  • CSA Standard: C22.2 No. 30

IEC

  • IEC Standards: EN60079-0, EN60079-1
  • Ex II 2 G Ex d IIC Gb
  • PTB 01 ATEX 1019 U

Design features

  • Threaded covers have glass windows for viewing scale, dial or setting of enclosed instrument
  • Mounting plates, brackets or pillars for mounting a wide variety of instruments are available on special order; instrument to be used must be specified by make, complete identification data, and dimensions

Standard materials

  • Body - Feraloy® iron alloy
  • Cover - copper-free aluminum
  • Window - Heat strengthened plate glass
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