Appleton Explosionproof Drain,...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$136.37
Appleton Explosionproof Drain, Breather & Universal Drain/Breather Fitting

Appleton Explosionproof Drain, Breather & Universal Drain/Breather Fitting

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Model: BRTB4X

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

$136.37
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Appleton Explosionproof Drain, Breather & Universal Drain/Breather Fitting

Appleton explosionproof and dust-ignitionproof drains, breathers, and universal drains/breathers provide a reliable means of preventing and releasing condensation when properly installed in the appropriate hazardous or non-hazardous location. This family covers NEMA 3R and NEMA 4X drain, breather, and universal drain/breather configurations for automatic water drainage, high-performance water drainage, and continuous ventilation, built from stainless steel for hazardous-location combination drain/breathers or copper-free (4/10 of 1% max.) aluminum for non-hazardous CRN drains.

Key Features

  • Durable Construction: Hazardous location combination drain/breathers are stainless steel; non-hazardous CRN drains are copper-free (4/10 of 1% max.) aluminum for corrosion resistance.
  • Universal Drain or Breather Function: NEMA 3R and Groups C and D configurations support automatic water drainage or continuous ventilation in a single fitting.
  • NEMA 4X Breather: Provides continuous ventilation for enclosures requiring higher ingress protection.
  • NEMA 4X Drain: Delivers automatic water drainage in washdown and corrosive environments.
  • NEMA 3R Group B High-Performance Drain/Breather: Raintight design for automatic water drainage or continuous ventilation.
  • Threaded Connection: Accurately tapped, tapered threads deliver tight, rigid joints and dependable ground continuity.
  • Non-Hazardous Location Option: Dedicated non-hazardous drain for straightforward automatic water drainage.
  • Explosionproof, Dust-Ignitionproof: Rated for use in classified hazardous locations.

Certifications & Compliance

  • Class I, Division 1 and 2, Groups B, C, D
  • Class II, Division 1 and 2, Groups E, F, G
  • Class III
  • NEMA 3R Raintight
  • NEMA 4X

Technical Specifications

  • NEC/CEC Certifications and Compliances: Class I, Division 1 and 2, Groups B, C, D; Class II, Division 1 and 2, Groups E, F, G; Class III
  • Standard Materials: Hazardous location combination drain/breathers are stainless steel; non-hazardous CRN drains are copper-free (4/10 of 1% max.) aluminum

Typical Applications

  • Hazardous Location Electrical Enclosures
  • Condensation Prevention and Release
  • Outdoor and Wet-Location Installations
  • Industrial and Petrochemical Facilities
  • Explosionproof and Dust-Ignitionproof Conduit Systems

Why Appleton?

Appleton drains, breathers, and universal drain/breathers combine explosionproof, dust-ignitionproof construction with corrosion-resistant stainless steel or copper-free aluminum bodies and accurately tapped, tapered threads for tight, rigid joints and reliable ground continuity. Backed by Class I, II, and III hazardous location certifications, these fittings deliver dependable, code-compliant condensation control for demanding industrial and hazardous-location electrical systems.

Manufacturer Resources

Product Specs

Product Type:
Drain & Breather
Listing:
Explosionproof
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings

Appleton BRTB4X – Frequently Asked Questions

1) What hazardous location classifications does the Appleton BRTB4X drain/breather fitting carry?
The Appleton explosionproof drain, breather and universal drain/breather line is rated for Class I, Division 1 and 2, Groups B, C and D; Class II, Division 1 and 2, Groups E, F and G; and Class III. It is explosionproof and dust-ignitionproof, which is what lets it go on enclosures in petrochemical, grain handling and other classified areas rather than general-purpose ones.
2) Do I need a drain, a breather, or both on my explosionproof enclosure?
A drain removes condensed water automatically from the low point of an enclosure; a breather provides continuous ventilation so moist air cycles out instead of condensing inside. On enclosures that see temperature swings, most installers fit both, one high and one low. Appleton also builds a universal drain/breather that performs either function in a single fitting, offered in NEMA 3R and Groups C and D configurations, plus a NEMA 3R Group B high-performance raintight version. If you only need water out and the location is unclassified, the non-hazardous CRN drain is the simpler pick.
3) Can I use the copper-free aluminum CRN drain in a Class I Division 1 area?
No. The copper-free aluminum CRN drain is the non-hazardous location option, meant for straightforward automatic water drainage where the area is unclassified. For a classified Class I, II or III location, use the stainless steel hazardous location combination drain/breather instead.
4) Is the Appleton drain/breather stainless steel or aluminum?
It depends which version you order. The hazardous location combination drain/breathers are stainless steel. The non-hazardous CRN drains are copper-free aluminum, 4/10 of 1 percent copper maximum, which is the standard spec for corrosion resistance around chlorides and sulfur compounds. For washdown or coastal work, the stainless combination fitting is the one to specify.
5) Will an Appleton breather fitting hold up in a washdown area?
Yes. The line includes a NEMA 4X breather for continuous ventilation and a NEMA 4X drain for automatic water drainage, both intended for washdown and corrosive environments. If the enclosure only needs raintight outdoor protection rather than hosedown, the NEMA 3R configurations cover that instead.
6) How does an Appleton drain/breather fitting attach to the enclosure, and does it maintain grounding?
It threads in. Appleton uses accurately tapped tapered threads, so the fitting pulls up tight and rigid against the enclosure hub and maintains ground continuity through the joint, which matters on a metallic explosionproof conduit system where the raceway is the equipment grounding path. Thread it into an unused hub or a drilled and tapped opening at the low point for drainage, high point for breathing.
7) What part number do I order for the Appleton NEMA 4X breather?
Order by Appleton model BRTB4X. Specify the configuration you need by function, drain, breather or universal, and by the enclosure rating the opening has to hold, NEMA 3R raintight or NEMA 4X.
How fast can I get the Appleton BRTB4X 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 BRTB4X come with a warranty?
Absolutely. The Appleton BRTB4X 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 BRTB4X?
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
Why buy the Appleton BRTB4X from ZenSupply?
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