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Appleton™ Contender™ 4/4X Series factory-sealed control stations and tumbler switches are built for dependable use in washdown, corrosive, and hazardous environments. Designed for remote motor control and status indication, these controls prevent arcing in ignitable atmospheres and are ideal for both new and retrofit installations.

Rated for NEMA 4 or 4X and certified for Class I, Division 2; Class II; and Class III hazardous locations, the Contender™ 4/4X Series is suitable for chemical plants, refineries, wastewater treatment facilities, grain processing, and any area exposed to moisture, dust, or corrosive elements.

Features

  • UL Classified covers for use with EDS back boxes; factory sealed—no external seals needed
  • Silicone gasket provides strong water and dust protection
  • Selector switch and push button guard accept 1/4" padlocks
  • Stainless steel captive screws resist corrosion
  • Durable epoxy powder coat finish
  • Labyrinth switch rated A600 (Vac) / P150 (Vdc)
  • LED pilot light rated for 100,000 hours; 120/240 Vac and 12/24 Vdc options
  • 20A tumbler switches rated 1 HP @ 120V, 2 HP @ 240V
  • Tumbler includes lockout provision for 1/4" padlock
  • Back box includes ground screw and external mounting lugs
  • Integral hub bushing protects conductor insulation

Specifications

NEC and CEC Certifications and Compliances Class I, Division 2, Groups B, C, D; Zone 2, Group IIB+H2; Class II, Division 1 and 2, Groups E, F, G; Class III; Type 3, 3R, 4, 4X, 12; IP66
Standard Materials and Finishes Back box: malleable iron with triple-coat finish—zinc electroplate, chromate, and epoxy powder coat—or copper-free aluminum with epoxy powder coat. Cover: copper-free aluminum with epoxy powder coat.
Temperature Rating -25 °C to +40 °C (-13 °F to +104 °F)
Available Options Aluminum back box for Type 4X rating. Pilot lights in green, amber, blue, and white with optional 12/24 Vdc. Spring return selector switches. Mushroom head push button guard. See catalog for details.
FAQs
Q: What are the advantages of Division 2 designs over Division 1 designs?
A: Division 1 designs rely on flamepaths between cover and back box flanges, requiring grease and regular maintenance. Appleton Division 2 designs use component-level protection (e.g., sealed contact blocks), allowing for gaskets that block moisture and dust—eliminating the need for grease and improving durability.
Q: How does the Contender 4/4X Series protect against harsh environments?
A: Each device includes a cover gasket, operator head gasket, and O-rings under the cover screws. Stainless steel screws resist corrosion, and epoxy powder coating shields against chemicals, heat, and mechanical wear. Aluminum back boxes are available for 4X protection.
Q: What savings can be realized by upgrading to the Contender 4/4X Series?
A: Better ingress and corrosion protection reduces maintenance, prevents cover seizure, and extends product life. Avoids costly full replacements and the need for non-metallic alternatives. Less downtime allows personnel to focus on higher-priority tasks.
Q: Are Contender 4/4X covers approved for Crouse-Hinds EDS back boxes?
A: Yes, they are UL Classified for use with Crouse-Hinds EDS Series back boxes.
Q: How does the Contender 4/4X Series perform in demanding environments?
A: Tested to meet or exceed Type 4, 4X, 12, IP66, IP6X standards—including high-pressure water spray, salt spray, dust chamber exposure, and oil immersion—to ensure maximum protection and reliability.
Q: Can the Contender 4/4X be used in a Class I, Division 1 area?
A: No. For Class I, Division 1 areas, use the Appleton EFDB Series or Appleton Contender Series rated specifically for Division 1 environments.
For more information on Appleton Contender Control Stations & Tumbler Switches, call 1-800-STE‌INER (783-46‌37) to speak with a Steiner Electrical Supplies Specialist. You may also submit the form below for additional details.

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