Appleton Explosionproof Drain, Breather & Universal Drain/Breather Fitting

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.