Appleton™ Liquidtight ST™ and STB Insulated Throat Connectors

Appleton™ liquidtight ST™ Series plain throat and STB Series insulated throat connectors provide a dependable connection for liquidtight flexible metal conduit. Available in straight, 45° and 90° styles and trade sizes from 3/8’ through 4’. The compact design results in a connector that offers a small turning radius. They seal out oil, water, dust, dirt and fumes.

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Features

  • ST Series has plain throat
  • STB Series has insulated throat to protect against wire damage
  • Unique long ferrule with more pronounced threads provides over four times UL pull-out requirements
  • Ferrule provides maximum surface contact for better sealing and a continuous, permanent, positive metal-to-metal ground
  • Polypropylene sealing ring with locknut standard
  • Liquidtight/raintight/oiltight/concretetight
  • Suitable for wet locations
  • Full, machined tapered threads (NPT)

Specifications

NEC/CEC Certifications and Compliances
NEC/CEC - Listed for Ordinary Locations. NEC - Suitable for use in: Class I, Division 2, NEC 501.10(B)(4); Class I, Zone 2, NEC 505.15(C)(2); Class II, Division 1, NEC 502.10(A)(2)(2); Class II, Division 2, NEC 502.10(B)(2); Class III, Division 1, NEC 503.10(A)(3)(2); Class III, Division 2, NEC 503.3
Standard Materials
3/8 to 1 straight: steel body/compression nut. 1-1/4 to 4 straight, 3/8 to 4 45° to 90°: malleable iron body/compression nut. 3/8 to 4 45° to 90°: malleable iron body. Caps: 3/8 to 1 steel; 1-1/4 thru 4 malleable iron. Ferrule
Standard Finishes
Steel: zinc electroplate. Malleable iron: triple-coat finish (1) zinc electroplate, (2) chromate, and (3) epoxy powder coat. Sealing ring: polypropylene

Documents & Drawings