Eaton EMH511 20000 Instrument Housing - Hazardous Locations
Part Number: EMH511 20000
Manufacturer
Eaton Crouse-Hinds
Part number
EMH511 20000
Quick Summary
Eaton EMH511 20000 instrument housing is designed for explosion-proof meter enclosures used in hazardous locations. It helps engineers avoid field retrofit delays by delivering a robust, flush-mounted enclosure with a single conduit opening for streamlined wiring. With NEC/CEC compliance and NEC hazardous ratings for Class I, II, and III environments plus durable NEMA protection, it meets stringent industrial requirements. Copper-free aluminum reduces corrosion and maintenance, while compatibility with Weston, Westinghouse, and Simpson meters simplifies procurement and spare-parts planning for utility and process plants. This enclosure supports reliable service in oil, gas, chemical, and mining applications where safety, uptime, and regulatory alignment matter.
Product Information
Extended Description
EMH511 20000 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EMH instrument housing, 1 conduit opening, Copper-free aluminum, Flush mount, Dead end, 3/4", Used with select Weston, Westinghouse and Simpson meters
Product Name
Eaton Crouse-Hinds series EMH instrument housing
Catalog Number
EMH511 20000
Product Length/Depth
5.75 in
Product Height
5.75 in
Product Width
5.69 in
Product Weight
4.83 lb
UPC
782274309903
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 7 9 12
Mounting style
Flush
Conduit openings
1
Style
Dead end
Trade size
3/4"
Used with
Select Weston, Westinghouse and Simpson meters
Material
Copper-free aluminum
Crouse-Hinds series EMH Explosionproof Instrument Enclosures catalog page
Eaton Specification Sheet - EMH511 20000
Feature copper-free aluminum construction → reduces corrosion and maintenance costs in harsh environments; Business impact: longer service life and lower lifecycle costs; Application: outdoor or chemically aggressive industrial settings. Feature flush mounting with a single conduit opening and 3/4 inch trade size, dead-end style → simplifies installation and reduces wiring complexity; Business impact: faster installs and fewer seal points; Application: compact meter housings in space-constrained facilities. Feature hazardous/classified area certification and NEC/CEC compliance plus NEMA ratings 3, 7, 9, 12 → ensures regulatory alignment and safer operation; Business impact: risk mitigation and permissive approvals across oil & gas, chemical, and mining plants; Application: electrical infrastructure for hazardous locations. Feature compatibility with Weston, Westinghouse, and Simpson meters → reduces inventory and stocking headaches; Business impact: faster replacements and lower procurement costs; Application: meter installations in industrial utilities and process plants. Feature dimensions of 5.75 in length/height and 5.69 in width with 4.83 lb weight → easy handling and installation in tight spaces; Business impact: improved field ergonomics and reduced crane or forklift dependency; Application: instrument housing in compact switchgear or panel projects. Addressing common objections about single conduit setups and corrosion resistance, this enclosure uses a robust aluminum alloy and a proven gasketed seal to maintain integrity; Business impact: predictable performance and lower maintenance cycles; Application: retrofits and new builds with stringent safety requirements. Industry context notes that these features translate to measurable uptime improvements, simplified regulatory audits, and a more predictable total cost of ownership for hazardous-location metering infrastructure.
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FAQs
Yes. The EMH511 20000 is designed for Class I, Division 1 and other hazardous location classifications. It features a flush-mount design, a single conduit opening, and copper-free aluminum construction, enabling compliant installation with standard field wiring methods while maintaining explosion-protected integrity. Always confirm site classifications and gasket sealing per NEC/CEC requirements before retrofit.
Key specs include copper-free aluminum, 5.75 in length and height, 5.69 in width, weight 4.83 lb, 1 conduit opening, 3/4 in trade size, flush mounting, and dead-end style. It is rated for NEMA 3, 7, 9, 12 and complies with NEC/CEC standards for hazardous/classified locations, and is suitable for meters in industrial environments.
Yes. The EMH511 20000 is specified for use with select Weston, Westinghouse, and Simpson meters, which helps standardize spare parts and simplifies procurement across utility and process installations. This compatibility supports quicker upgrades and service, reducing downtime during meter swaps or replacements.
The enclosure carries NEC/CEC standards for hazardous and classified locations, NEC hazardous ratings for Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III, and a NEMA rating of 3, 7, 9, 12. This combination delivers regulatory compliance and reliability in oil/gas, chemical, and mining environments.
The copper-free aluminum construction minimizes corrosion and upkeep, while the rugged design reduces field failures and rework. Its compatibility with common meters lowers inventory costs, and the single conduit design simplifies sealing and maintenance tasks. Over the product lifecycle, this translates to lower maintenance frequency, fewer spare parts, and a shorter payback period for hazardous-location metering projects.