Eaton EMH521 20200 Instrument Housing - Hazardous Locations
Part Number: EMH521 20200
Manufacturer
Eaton Crouse-Hinds
Part number
EMH521 20200
Quick Summary
EMH521 20200 instrument housing from Eaton Crouse-Hinds protects meters and control instruments in rugged industrial environments. This enclosure provides a reliable, code-compliant housing solution that reduces wiring errors and installation time in harsh facilities. By design, it addresses common field challenges such as hazardous-area considerations, corrosive exposure, and space constraints. It carries NEC and CEC compliance, along with hazardous/classified location ratings and a NEMA ensemble of 3, 7, 9, and 12, translating into safer operation and easier approvals. The combination of surface mounting, through-feed capability, and copper-free aluminum construction offers a durable, lightweight alternative to bulkier enclosures, while remaining compatible with Weston, Westinghouse and Simpson meters for streamlined panel integration.
Product Information
Extended Description
EMH521 20200 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EMH instrument housing, 2 conduit openings, Copper-free aluminum, Surface mount, Through feed, 3/4", Used with select Weston, Westinghouse and Simpson meters
Product Name
Eaton Crouse-Hinds series EMH instrument housing
Catalog Number
EMH521 20200
Product Length/Depth
5.75 in
Product Height
5.75 in
Product Width
5.69 in
Product Weight
4.85 lb
UPC
782274310206
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
Surface
Conduit openings
2
Style
Through feed
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 - EMH521 20200
Feature: Copper-free aluminum construction → Business Impact: corrosion resistance and reduced weight simplify long-term maintenance and installation logistics. Application: ideal for harsh industrial environments where metal surfaces must withstand exposure without compromising structural integrity. This translates to lower lifecycle costs and less frequent enclosure replacements. Feature: Surface mounting design → Business Impact: faster, cleaner installations with reduced mounting hardware requirements. Application: control panels and meter housings in tight spaces where back-surfaces are accessible. Overall benefit: accelerated project timelines and improved serviceability for field technicians. Feature: Through-feed capability and 3/4" trade size conduits → Business Impact: flexible wiring routes and simplified cable management, improving signal integrity and reducing wiring errors. Application: utility meters and instrumentation in complex electrical rooms, where wiring must pass through the enclosure without tangling. Outcome: safer, compliant installations with easier future upgrades. Feature: Two conduit openings → Business Impact: increased adaptability to sensor and power feed configurations, enabling neat, code-compliant terminations. Application: hazardous-location installations requiring dependable conduit routing. Benefit: improves inspection outcomes and reduces retrofit costs. Feature: Hazardous/Classified Locations rating and NEMA 3, 7, 9, 12 → Business Impact: robust protection for critical meters inside difficult environments, simplifying regulatory approvals. Application: environments with dust, moisture, and potential ignition sources. Result: higher uptime and reduced risk of equipment failure. Feature: Compatibility with Weston, Westinghouse and Simpson meters → Business Impact: proven interoperability minimizes integration risk and spare-part diversity. Application: instrument panels leveraging familiar metering brands. Benefit: smoother procurement and faster commissioning for mission-critical systems.
Get a Quick Quote for a Eaton Crouse-Hinds EMH521 20200
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton Crouse-Hinds EMH521 20200?
Enquire Now
FAQs
EMH521 20200 is designed for hazardous-location meter and instrument installations in industrial settings. It supports surface mounting and through-feed wiring, accommodates 3/4 inch trade size conduits, and provides rugged protection for Weston, Westinghouse and Simpson meters. This makes it ideal for utility, manufacturing, and process control environments where compliance and reliability are critical.
The enclosure measures 5.75 inches in length and height, 5.69 inches in width, and weighs approximately 4.85 lb. It features two conduit openings sized for 3/4 inch trade fittings, enabling straightforward wiring routes and tidy installations in restricted spaces.
Yes. EMH521 20200 carries NEC/CEC compliance and hazardous/classified location ratings, along with a NEMA rating suite of 3, 7, 9, and 12. These certifications ensure safe operation in potentially explosive atmospheres and support regulatory approvals for industrial installations.
Yes. The EMH521 20200 is specified for use with select Weston, Westinghouse and Simpson meters, ensuring interoperable integration with common metering brands and reducing the need for custom adapters or bespoke housings.
The housing is made from copper-free aluminum and uses a surface-mount style. This combination offers lightweight durability, corrosion resistance, and straightforward installation, particularly beneficial for retrofit projects and installations with space constraints.