Eaton EIH21 MF Instrument Enclosure - Hazardous Locations

Part Number: EIH21 MF
Eaton Crouse-Hinds logo
Manufacturer
Eaton Crouse-Hinds
Part number
EIH21 MF

Quick Summary

Eaton EIH21 MF instrument enclosure protects sensitive instruments in hazardous locations for industrial control panels. Engineers struggle with costly downtime, corrosion, and compliance gaps when selecting enclosures for hazardous areas. It carries NEC/CEC compliance with Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III ratings, plus NEMA ratings 3, 4, 4X, 7 and 9, enabling safe, regulator-friendly deployments. Practical advantages include a 2 in glass cover, 3/4 in trade size compatibility, copper-free aluminum construction, and cast mounting feet for easy mounting in restricted spaces. Its glass cover offers clear visibility while maintaining enclosure integrity under demanding industrial conditions.

Product Information

Extended Description

EIH21 MF Eaton Crouse-Hinds: Eaton Crouse-Hinds series EIH instrument enclosure, 2" cover opening, Glass cover, Copper-free aluminum, Cast mounting feet, 3/4" trade size
Product Name
Eaton Crouse-Hinds series EIH instrument enclosure
Catalog Number
EIH21 MF
Product Length/Depth
5.25 in
Product Height
4.54 in
Product Width
5.25 in
Product Weight
3.35 lb
UPC
782274582993
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 4 4X 7 9
Trade size
3/4"
Cover type
Glass
Cover opening size
2 in
Material
Copper-free aluminum
Special features
Cast mounting feet
Feature: Copper-free aluminum construction delivers corrosion resistance and lighter weight compared to steel. Business impact: This reduces maintenance costs, extends service life, and simplifies handling during installation. Application: Ideal for chemical plants, oil and gas facilities, and other hazardous locations where instrument enclosures must endure challenging environments. Feature: Glass cover provides clear visibility of inside instruments. Business impact: Speeds inspection and reduces maintenance downtime. Application: Control rooms and field panels where monitoring is frequent. Feature: 2 in cover opening and 3/4 in trade size compatibility. Business impact: Facilitates wiring, testing, and field modifications, lowering panel downtime. Application: Instrument enclosures in hazardous locations with standard fittings. Feature: Cast mounting feet improve mounting stability and vibration resistance. Business impact: Ensures secure placement in busy panel areas and reduces repositioning needs. Application: Wall-mounted or frame-mounted installations in manufacturing lines. Feature: NEC/CEC compliance and NEMA ratings (3, 4, 4X, 7, 9). Business impact: Eases regulatory approvals and operator safety, simplifying audits. Application: Hazardous process environments requiring UL/CSA certifications. Feature: Compact footprint and light weight (5.25 x 5.25 x 4.54 in; 3.35 lb). Business impact: Space-saving, easier handling, and faster crane-free installation. Application: Small control cabinets and restricted-space enclosures.

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FAQs

The enclosure uses cast mounting feet for stable surface mounting on walls or frames, with a compact footprint that fits tight spaces. Ensure adequate clearance around the enclosure per local codes and provide proper support to handle cable entries.
It carries NEC/CEC compliance with Class I Division 1 and 2, Class II Division 1 and 2, Class III, and NEMA ratings 3, 4, 4X, 7, 9, along with UL certifications for hazardous locations.
Yes. Copper-free aluminum construction provides corrosion resistance, and its explosionproof, hazardous-location ratings make it appropriate for chemical processing, oil and gas, and other demanding environments.
Dimensions are 5.25 in length and width, 4.54 in height, with a weight of 3.35 lb. The cover opening is 2 in and it uses a 3/4 in trade size, helping with space planning.
Refer to the IF 1458 Declaration of Manufacturer and the Eaton specification sheet for EIH21 MF, plus the Crouse-Hinds catalog pages and UL certification reports for installation guidance and compliance data.