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Explosionproof Conduit Unions, Elbows and Tees

Crouse-Hinds series explosionproof unions are installed in rigid/IMC conduit systems to connect conduit to conduit, a conduit fitting, junction box or device enclosure.  Expansion unions are also available, which allow for expansion and contraction of conduit and compensate for conduit cut too short.  Available in a variety of materials, including stainless steel, to suit customer preferences.

Explosionproof elbows allow for a 90° change in direction to the conduit run, or when terminating at a box or fitting.  Elbows are available with certifications for NEC Class I and II environments, as well as IEC Zone 1, 2, 21 and 22 applications.

Explosionproof conduit unions, elbows, tees

Certifications and compliances

Unions

  • Cl. I, Div. 1 & 2, Groups A, B, C, D*
  • Cl. II, Div. 1, Groups E, F, G
  • Cl. II, Div. 2, Groups F, G
  • Cl. III
  • UL standard: UL1203
  • CSA standard: C22.2 No. 30 

* Certifications vary by model.  Refer to the Certifications and compliances section of the catalog page for classification of each product.

Elbows and Tees
  • Type of protection: Ex d, DIP A21, IP67
  • Degree of protection: IP67
  • Gas group: IIB
  • Approvals: Ex1108U

Design Features

  • UNY, UNF and UNL unions have compact designs which permit assembly with a minimum of clearance to other adjacent conduit and/or equipment
  • UNA unions have a single clamping nut on an angle, making it both a union and a connector; this permits conduit joints at angles between 90° and 180°
  • EL elbows have a smooth interior and are both strong and compact
  • FE and FT IEC certified elbows and tees feature large openings to facilitate cable pulling
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