Appleton 737 Series Adaptors a...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$627.39
Appleton 737 Series Adaptors and Reducers, Nickel Plated Brass

Appleton 737 Series Adaptors and Reducers, Nickel Plated Brass

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Model: 737DM8T85

In Stock (leaves warehouse same day if ordered before 3pm ET)

$627.39
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Appleton 737 Series Adaptors and Reducers, Nickel Plated Brass

Appleton 737 Series increased safety and flameproof adaptors and reducers connect cable entry devices and equipment that have dissimilar threads, making them a go-to solution for hazardous area electrical work. Standard units are constructed of nickel plated brass, with optional copperfree aluminum, brass, or 316L stainless steel available for demanding environments. The 737 Series carries triple certification — Ex d/Ex e/Ex nR — and an IP66/68 ingress rating, delivering a reliable, code-compliant thread conversion for panels, enclosures, and cable gland assemblies.

Key Features

  • Thread Conversion: Connects cable entry devices and equipment having dissimilar threads across a wide range of adaptor and reducer configurations.
  • Durable Construction: Standard nickel plated brass construction for corrosion resistance and long-term reliability in hazardous locations.
  • Optional Materials: Also available in copperfree aluminum, brass, or 316L stainless steel to match application and environmental requirements.
  • Triple Certification: Rated Ex d/Ex e/Ex nR for flameproof, increased safety, and restricted breathing hazardous area applications.
  • System Compatibility: Designed to work alongside Appleton cable gland accessories, including shrouds, locknuts, earth tags, entry thread seals, and serrated washers.
  • Sealing Integrity: A suitable sealing gasket should be selected and installed where applicable to maintain an effective seal and preserve the enclosure or equipment IP rating.

Certifications & Compliance

  • NEC/CEC: Class 1, Group A, B, C, D; Zone 1, AEx de II; IP66/68
  • ATEX/IECEx: Zone 1 and 2 – 21 and 22; Ex II 2 GD; IP66/68
  • Triple Certification Ex d/Ex e/Ex nR

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Hazardous Area Electrical Installations
  • Cable Gland and Conduit Entry Systems
  • Oil & Gas and Industrial Process Facilities
  • Zone 1 and Zone 2 Classified Areas
  • Panel and Enclosure Wiring with Mixed Thread Standards

Why Appleton?

Appleton engineers the 737 Series with nickel plated brass as standard and corrosion-resistant material options for tougher environments, backed by triple Ex d/Ex e/Ex nR certification and an IP66/68 rating. For electrical professionals working in classified hazardous locations, that combination of material choice and third-party certification supports dependable, code-compliant installations where mismatched threads would otherwise compromise the enclosure seal.

Manufacturer Resources

Appleton Full Line Catalog

Product Specs

Product Type:
Reducer
Listing:
Ex d/Ex e/Ex nR
Standards:
ATEX/IECEx
Product Finish:
Nickel-Plated
Product Material:
Nickel Plated Brass
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings

Appleton 737DM8T85 – Frequently Asked Questions

1) What does an Appleton 737 Series adaptor actually do in a hazardous area installation?
The Appleton 737 Series adaptors and reducers join cable entry devices and equipment whose threads do not match, so a gland with one thread form can land in an enclosure entry with another. They are built for classified areas and carry triple certification, Ex d, Ex e and Ex nR, covering flameproof, increased safety and restricted breathing applications, with an IP66/68 ingress rating.
2) Is the Appleton 737 adaptor approved for Class I Division areas in North America as well as ATEX zones?
Both. The 737 Series is listed for NEC/CEC Class 1, Group A, B, C, D and Zone 1, AEx de II, and separately for ATEX/IECEx Zone 1 and 2 as well as Zone 21 and 22, marked Ex II 2 GD. Ingress protection is IP66/68 under both schemes. That dual approval is what lets the same part number be specified on a project drawn to North American and IEC standards.
3) Do I need a gasket or washer with the 737 adaptor to keep the enclosure's IP rating?
Plan on it. Appleton states a suitable sealing gasket should be selected and installed where applicable to maintain an effective seal and preserve the IP rating of the enclosure or equipment. Fitting a thread adaptor into a clearance-hole entry without the right sealing washer is the usual way an IP66/68 assembly gets downgraded on site.
4) What material is the standard Appleton 737 adaptor, and what should I use in a corrosive or offshore environment?
Standard 737 adaptors and reducers are nickel plated brass, which handles general corrosion in industrial plants. For harsher duty the series is also offered in copperfree aluminum, brass, or 316L stainless steel. Offshore, salt spray, or aggressive chemical exposure is where the 316L stainless option earns its place; copperfree aluminum is the choice where weight matters and copper content is restricted.
5) What else do I order alongside an Appleton 737 adaptor to finish the entry?
The 737 Series is designed to work with Appleton cable gland accessories: shrouds, locknuts, earth tags, entry thread seals, and serrated washers. A typical enclosure entry uses a locknut to secure it on a clearance hole, a serrated washer or earth tag where bonding continuity has to be proven, an entry thread seal for the IP rating, and a shroud where the thread and gland body need environmental cover.
6) Which Appleton 737 model number is the nickel plated brass adaptor ordered as?
Order it as Appleton 737DM8T85. That is the nickel plated brass version of the 737 Series adaptor. Thread conversion parts are ordered by exact designation, so match the model to the entry thread on the equipment and the thread on the gland you are landing.
7) Can I use a 737 adaptor to convert threads on a flameproof Ex d enclosure, or is it only for increased safety enclosures?
Either. The triple certification, Ex d, Ex e and Ex nR, covers flameproof, increased safety and restricted breathing equipment, so one part handles thread conversion on a flameproof gland-to-enclosure joint or on an Ex e terminal box. With Ex d the thread engagement in the flamepath still has to satisfy the equipment certificate, so use the adaptor that gives full thread engagement rather than shimming with washers.
8) Where are Appleton 737 adaptors and reducers typically used?
Oil and gas and industrial process facilities, panel and enclosure wiring where mixed thread standards meet, cable gland and conduit entry systems, and Zone 1 and Zone 2 classified areas. In practice they show up any time a metric-threaded gland has to land in an NPT entry or the reverse, without breaking the certified seal.
How fast can I get the Appleton 737DM8T85 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Appleton 737DM8T85 come with a warranty?
Absolutely. The Appleton 737DM8T85 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Appleton 737DM8T85?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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