Industrial C1D1 & C1D2 Hazardous Location Enclosures
AEL designs and manufactures UL-certified Class I, Division 1 and Division 2 enclosures for industrial environments where flammable gases, vapors, or combustible dusts are present. Purpose-built for chemical processing, oil & gas, pharmaceutical, and advanced manufacturing applications.
Industries Served
Our C1D1/C1D2 enclosures protect critical equipment and personnel across the most demanding industrial environments:
Chemical Processing
Solvent handling, chemical mixing, reactor containment, and process equipment enclosures. Designed for environments with flammable vapors and corrosive atmospheres.
Oil & Gas
Wellhead equipment shelters, compressor buildings, metering stations, and pipeline control enclosures. Built for upstream, midstream, and downstream operations.
Pharmaceutical & Biotech
Solvent recovery rooms, API processing enclosures, and classified manufacturing environments. cGMP-compatible construction available.
Cannabis & Extraction
Hydrocarbon extraction labs, solvent storage rooms, and post-processing enclosures. Purpose-built for butane, propane, and ethanol extraction operations.
Advanced Manufacturing
Paint spray booths, coating operations, powder handling, and industrial processes generating combustible dusts or flammable vapors.
Energy & Utilities
Battery storage rooms, hydrogen fueling stations, natural gas facilities, and electrical equipment in classified areas.
What's Included in Every C1D1/C1D2 Enclosure
Every AEL hazardous location enclosure is custom-engineered and includes:
Structural & Envelope
Heavy-gauge steel construction, explosion-proof wall assemblies, fire-rated separation (1-3 hr available), weatherproof exterior finish, seismic engineering where required.
Ventilation & Gas Detection
Engineered ventilation systems sized to NEC Article 500 requirements, continuous gas detection with automated shutdown, explosion-proof exhaust fans, fresh air makeup systems.
Electrical Systems
UL 508A control panels, explosion-proof lighting and receptacles, classified area wiring methods, emergency disconnect, intrinsically safe instrumentation circuits.
Safety & Compliance
Emergency egress, fire suppression pre-piped, eye wash/safety shower provisions, spill containment, AHJ documentation packages, PE-stamped structural and electrical drawings.
Available Configurations
Containerized (Outdoor)
Purpose-built on ISO or custom steel platforms. Fully enclosed, weatherproof, and transportable. Ideal for remote sites, temporary operations, or facilities without available indoor space.
Modular Panel (Indoor)
Prefabricated wall, ceiling, and floor panels that assemble inside your existing facility. Create a classified room within a non-classified building shell.
Custom Structures
Multi-room complexes, walk-in enclosures, and specialty configurations engineered to your specific process flow, equipment layout, and site constraints.
Trusted By Industry Leaders
AEL hazardous location enclosures are deployed at facilities operated by:
Frequently Asked Questions
What is the difference between Class I Division 1 and Division 2?
Division 1 areas have flammable gases or vapors present under normal operating conditions. Division 2 areas only have hazardous concentrations under abnormal conditions (equipment failure, accidental release). AEL builds enclosures for both classifications, with Division 1 requiring more stringent explosion-proof equipment and wiring methods.
Does AEL provide PE-stamped engineering drawings?
Yes. Every AEL hazardous location enclosure includes PE-stamped structural and electrical engineering drawings suitable for permit submission and AHJ review. Our engineering team works directly with local authorities to address jurisdiction-specific requirements.
Can AEL build enclosures for both indoor and outdoor installation?
Yes. We manufacture containerized outdoor enclosures on steel platforms and modular panel systems for indoor installation. Both configurations meet the same NEC Article 500 classification requirements.
What is the typical lead time for a C1D1/C1D2 enclosure?
Lead times vary by complexity and size, but typical projects range from 10-16 weeks from engineering approval to delivery. Contact AEL at (888) 502-6695 for a project-specific timeline.
Does AEL handle permitting and AHJ coordination?
AEL provides complete documentation packages for permit submission and works directly with the Authority Having Jurisdiction (AHJ) to address code questions. We have experience with jurisdictions nationwide.
Request a Quote for Your Hazardous Location Enclosure
Every project is custom-engineered. Tell us about your classification requirements, equipment, and site conditions — we'll provide a detailed proposal.
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