Eaton EMP0492 Selector Switch Operator - Key Removal Left
Part Number: EMP0492
Quick Summary
The Eaton Crouse-Hinds EMP0492 selector switch operator provides reliable, manual control for hazardous-area control stations. In challenging environments, maintenance and misoperation can slow production and compromise safety. This device carries NEC/CEC hazardous location ratings, including Class I Division 1 and Division 2, Class II Division 1 and 2, and Class III, plus NEMA 3, 7, 9 protection, giving you robust compliance. It also supports a standard assembly and a dual-contact arrangement for straightforward logic wiring. The key-operated design enhances security by preventing unauthorized cycling, while the compact footprint simplifies installation in existing enclosures. For procurement and installation teams, this translates to predictable performance and reduced downtime in demanding facilities.
Product Information
Extended Description
EMP0492 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EMP selector switch operator, Standard, One normally open, one normally closed, Two-position selector switch, key operated, Key removal left only, One contact block
Product Name
Eaton Crouse-Hinds series EMP selector switch operator
Catalog Number
EMP0492
Product Length/Depth
6.63 in
Product Height
2.63 in
Product Width
2.63 in
Product Weight
0.75 lb
UPC
782274031453
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, key operated
Assembly style
Standard
Contact arrangement
One normally open, one normally closed
Special features
One contact block
Type
Key removal left only
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 - EMP0492
Feature: Two-position selector switch, key operated. Benefit: Provides secure manual control and reduces accidental cycling, increasing operator discipline and safety in hazardous locations. Application: Ideal for control stations in chemical plants, offshore platforms, and mining sites where reliable local control is essential. Feature: One normally open and one normally closed contact arrangement. Benefit: Supports simple control logic with minimal wiring complexity, improving system reliability and simplifying wiring diagrams for contractors. Application: Suitable for motor start/stop circuits and interlock sequences in hazardous environments. Feature: Standard assembly. Benefit: Eases integration with existing control panels and reduces engineering time during retrofits. Application: Works with common enclosure footprints and mounting patterns found in industrial facilities. Feature: Key removal left only. Benefit: Enhances security by preventing tampering and unauthorized operation, reducing risk during remote or unattended operation. Application: Excellent for remotely located control stations and perimeter access points. Feature: Certifications and ratings (NEC/CEC, NEMA 3 7 9, hazardous area). Benefit: Ensures regulatory compliance and durable performance under harsh conditions, lowering lifecycle costs. Application: Ready for Class I/II/III, Division 1/2 locations and corrosive or outdoor environments. Additional note: Dimensions and weight (6.63 in L, 2.63 in W, 2.63 in H, 0.75 lb) support accurate footprint planning and enclosure compatibility, reducing installation surprises and spare parts needs.
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FAQs
Plan for a standard assembly with a compatible enclosure. Verify mounting footprint aligns with the 6.63 in length and 2.63 in width/height, route wiring to one normally open and one normally closed contact block, and follow IF1702 installation guidelines for EMP/EMPS assemblies to ensure compliance with Class I/II locations.
EMP0492 uses one normally open and one normally closed contact arrangement. Wire the NO and NC circuits to match your control logic, observing proper enclosure sealing and wiring practices for hazardous locations as per NEC/CEC standards.
EMP0492 carries NEC/CEC hazardous location standards and NEC ratings including Class I Division 1 and Division 2, Class II Division 1 and 2, Class III, with NEMA ratings of 3, 7, and 9, suitable for hazardous/classified locations and rugged environments.
Yes. The standard assembly and compact footprint are designed for compatibility with common enclosure designs used in hazardous-area installations, enabling straightforward retrofits and minimizing enclosure redesign.
Key removal left operation reduces tampering risk, enhancing safety and security. Reliable NEC/CEC compliance and rugged NEMA ratings decrease downtime and warranty concerns, delivering lower lifecycle costs for facilities with frequent control-line operations.