nickel-plated brass cable gland / stainless steel / explosion-proof / increased safety
501/421 Hawke


  • Material:

    nickel-plated brass, stainless steel

  • Protection level:

    explosion-proof, increased safety

  • Other characteristics:

    for non-armored cables

  • Cable diameter:

    Max.: 91.6 mm

    Min.: 3.2 mm

  • Operating temperature:

    Max.: 100 °C (212 °F)

    Min.: -60 °C (-76 °F)

  • Thread diameter:

    Max.: 4 in

    Min.: 0.5 in



The 501/421 cable gland provides a seal on the outer cable sheath and is intended for use on non-armoured elastomer and plastic insulated cables. The cable gland is dual certified Exd and Exe and is suitable for installation in Zone 1 (21) and Zone 2 (22) hazardous areas.


When used in increased safety applications, this cable gland may be used with braided cable where the braid and the cables outer sheath pass into the enclosure. The braid must be suitably terminated inside the enclosure.

Materials & Finishes

The 501/421 cable gland is manufactured in Brass (standard), Nickel Plated Brass, 316 Stainless Steel or Aluminium. Brass NPT entries are nickel plated as standard.