Eaton Crouse-Hinds EMP049 Selector Switch - Class I/II
Part Number: EMP049
Quick Summary
The EMP049 is a hazardous-area selector switch operator used to control equipment in explosive environments. Operators often struggle with safe, compliant control points that tolerate dust, moisture, and corrosive atmospheres. It meets Hazardous/Classified Locations standards, NEC/CEC compliance, and NEMA ratings 3, 7, and 9, ensuring robust protection. This standard assembly supports quick installation and reliable operation, delivering reduced downtime and predictable maintenance costs for oil, gas, and marine projects.
Product Information
Extended Description
EMP049 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EMP selector switch operator, Standard, Two-position selector switch, One contact block
Product Name
Eaton Crouse-Hinds series EMP selector switch operator
Catalog Number
EMP049
Product Length/Depth
5.81 in
Product Height
2.63 in
Product Width
2.63 in
Product Weight
0.75 lb
UPC
782274310336
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
Operator style
Two-position selector switch
Assembly style
Standard
Special features
One contact block
EMP and EMPS Hazardous Area Operators catalog page
IF 1702 - EMP/EMPS Barrel Assemblies - ATEX and IEC version
IF 1702 - EMP/EMPS Barrel Assemblies - ATEX and IEC version
Eaton Specification Sheet - EMP049
Hazardous-area readiness drives safer operations and regulatory compliance. The EMP049 leverages a two-position selector switch with a standard assembly and one contact block, delivering clear, localized control in Class I/II environments. The immediate business impact is minimized downtime and improved fault isolation, ideal for oil and gas processing, chemical plants, and offshore facilities where control points must endure harsh conditions. Compact form factor and standard barrel-assembly compatibility streamline installation and spare-part management, reducing project complexity. The design supports quick retrofits and replacements, lowering lifecycle costs and facilitating maintenance planning across asset-heavy sites. NEC/CEC alignment and NEMA ratings 3, 7, and 9 provide confidence in performance across varied climate and marine exposure scenarios. In practice, technicians report faster commissioning and fewer field adjustments during panel builds and maintenance cycles.
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FAQs
EMP049 is designed for standard EMP/EMPS barrel assemblies with a standard installation style. Align the two-position selector with the mounting bezel, secure with the included hardware, and connect the contact block as specified. Refer to IF1702 installation sheets for ATEX/IEC versions to ensure proper enclosure, cable entry, and grounding. Verify NEC/CEC classifications prior to energization to maintain compliance and safety.
EMP049 carries Hazardous/Classified Locations approvals, NEC/CEC compliance, and compatible NEMA ratings of 3, 7, and 9. It is rated for Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III environments, making it suitable for a wide range of hazardous industrial applications while maintaining reliable operation.
Yes. The EMP049 is designed for hazardous area control points in oil and gas facilities, chemical processing plants, and marine environments. Its two-position selector switch and one contact block are optimized for rugged installations, and its area classification and NEMA ratings provide durable protection against dust, moisture, and corrosive atmospheres.
EMP049 complies with NEC/CEC standards for hazardous locations and area classifications. It supports Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III environments, along with NEMA ratings 3, 7, and 9, ensuring regulatory alignment across industrial and marine sites.
The EMP049’s standard assembly and barrel-assembly compatibility simplify spare-parts management and replacements, reducing downtime. The robust two-position switch with a single contact block minimizes wiring complexity and maintenance points, lowering labor costs during commissioning and service. Lightweight design (0.75 lb) also eases panel mounting and upgrades across asset-heavy facilities.