EJB160404 SA Explosionproof Enclosures: Class I/II IP66

Part Number: EJB160404 SA
Eaton Crouse-Hinds logo
Manufacturer
Eaton Crouse-Hinds
Part number
EJB160404 SA
Category

Quick Summary

EJB160404 SA is an explosionproof junction box designed for hazardous locations in industrial electrical installations. In demanding environments, installers must rely on enclosures that resist dust, water ingress, and harsh chemicals without sacrificing accessibility or speed. This product carries NEC/CEC compliance and hazardous-location ratings, including Class I Division 1 and Zone 1, with broad NEMA protections up to 3, 3R, 4, 7 and 9 and robust IP66 ingress protection. By combining a copper-free aluminum build with a 16 x 4 x 4 enclosure size, it delivers durable, lighter-weight protection that reduces install time and total cost of ownership for automation projects.

Product Information

Extended Description

EJB160404 SA Eaton Crouse-Hinds: Eaton Crouse-Hinds series EJB junction box, 16" x 4" x 4", Without hinge, Copper-free aluminum, Style D
Product Name
Eaton Crouse-Hinds series EJB junction box
Catalog Number
EJB160404 SA
Product Length/Depth
6.16 in
Product Height
8.5 in
Product Width
20.5 in
Product Weight
32 lb
UPC
782274237411
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Zone 1 Class I, Division 2 Class I, Zone 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 3R 4 7 9
Ingress protection (IP) ratings
IP66
Enclosure size
16" x 4" x 4"
Style
D
Material
Copper-free aluminum
Hinge
Without hinge
SP3D Design Package - EJB Explosionproof Enclosures Crouse-Hinds series EJB Explosionproof Enclosures catalog page IF 1444 - EJB, Style D Series Classified Enclosures Eaton Specification Sheet - EJB160404 SA
The 16 x 4 x 4 inch enclosure footprint provides ample internal space for wiring and components, while the copper-free aluminum construction delivers corrosion resistance and lighter handling compared with traditional copper-bearing cabinets. This translates to easier installation, reduced handling costs, and lower lifecycle weight-related stress on mounting hardware. The IP66 rating protects against dust and high-pressure water jets, enabling reliable outdoor and washdown operation in challenging environments. Hazardous-location certifications—Class I Division 1, Zone 1, and related NEC/CEC compliance—offer rapid qualification for oil and gas, chemical processing, and mining applications, reducing time-to-startup and risk during audits. NEMA ratings 3, 3R, 4, 7, and 9 further assure rugged protection for diverse industrial installations. Style D and without hinge design simplify gasket sealing and reduce maintenance points, improving long-term reliability in remote installations. The enclosure’s weight of 32 lb balances robust protection with manageable transport and mounting in constrained spaces.

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FAQs

EJB160404 SA is sized at 16 x 4 x 4 inches with a copper-free aluminum body, designed for hazardous-location installations. It aligns with NEC/CEC standards and IP66 protection, allowing straightforward mounting alongside standard electrical components. When integrating, verify matching knockout patterns and clearance in your enclosure layout to maintain rated integrity while simplifying cable management and wiring routes.
IP66 denotes total protection against dust ingress and high-pressure water jets, ensuring reliable operation in outdoor, washdown, and chemically exposed environments. For hazardous locations, this rating absorbs environmental stress without compromising seal integrity, reducing maintenance frequency and extending service intervals for equipment mounted inside the EJB160404 SA.
Yes. The IP66 rating, coupled with the copper-free aluminum construction and Class I Division 1/Zone 1 hazard classifications, makes it suitable for outdoor, wet, and washdown environments common in oil, gas, and chemical processing facilities. Ensure installation follows the required gland and gasket procedures to maintain enclosure integrity and maintain code compliance.
The EJB160404 SA supports NEC/CEC compliance and hazardous-location classifications including Class I Division 1 and Zone 1, plus additional Class II/III ratings. It is compatible with a range of NEMA protections (3, 3R, 4, 7, 9) and meets IP66 ingress protection. These certifications simplify regulatory approvals and vendor qualification in regulated industries.
The copper-free aluminum body reduces weight and corrosion risk, lowering handling and maintenance costs. IP66 and hazardous-location certifications minimize downtime due to environmental exposure and compliance audits, speeding installation and commissioning. Over the life of an automated system in harsh environments, these factors translate to improved uptime, lower total cost of ownership, and faster project payback.