Eaton CPS732 311 Receptacle Assembly - Hazardous Locations

Part Number: CPS732 311
Eaton Crouse-Hinds logo
Manufacturer
Eaton Crouse-Hinds
Part number
CPS732 311

Quick Summary

CPS732 311 is a rugged Eaton Crouse-Hinds Arktite receptacle assembly for hazardous locations in industrial environments. This through-feed, single-gang unit delivers durable, code-compliant power connections where safety and reliability are non-negotiable. The design features Class I, Division 1 and Division 2 certifications and factory sealing to protect against arc events, dust, and moisture ingress. It meets NEC/CEC standards and UL certifications, aligning with regulatory requirements across North American facilities. By combining a copper-free aluminum housing with brass contacts, and through-feed capability, it reduces corrosion risks and maintenance overhead while delivering flexible, scalable power distribution for demanding applications in oil & gas, chemical processing, and mining environments.

Product Information

Extended Description

CPS732 311 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Arktite CPS receptacle assembly, 7A/30A, Through feed, 3-wire, 4-pole, Brass contacts, 60 Hz, Style 2, 1 HP/3 HP, Copper-free alum, Single-gang, Fact sealed, 1", Delay action circuit breaking, 125-250 Vac/480 Vac
Product Name
Eaton Crouse-Hinds series Arktite CPS receptacle assembly
Catalog Number
CPS732 311
Product Length/Depth
3.5 in
Product Height
6.72 in
Product Width
7.25 in
Product Weight
7.58 lb
UPC
782274186009
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2
Grounding style
Style 2
Number of gangs
Single-gang
Amperage Rating
7A/30A
Configuration
Three-wire, four-pole
Back box style
Through feed
Trade size
1"
Voltage rating
125-250 Vac/480 Vac
Horsepower
1 hp/3 hp
Frequency rating
60 Hz
Material
Copper-free aluminum
Contact material
Brass
Special features
Factory sealed
Type
Delayed action circuit breaking
Feature: Copper-free aluminum housing provides excellent corrosion resistance and lighter weight, improving long-term reliability in harsh environments. Business Impact: Reduced maintenance costs, easier handling during installation, and extended service life in aggressive atmospheres. Application: Offshore platforms and chemical plants where exposure to moisture and corrosive agents is routine. Feature: Brass contact material ensures durable electrical connections with high conductivity. Business Impact: Stable performance under fluctuating loads, lower resistance losses, and improved uptime in critical control circuits. Application: Hazardous-location motor starters and control panels. Feature: Through-feed, 1" trade size back box design simplifies wiring and field alterations. Business Impact: Faster install times, minimized field modification, and lower labor costs. Application: Control panels and junctions in Class I Div 1/Div 2 zones. Feature: Delayed action circuit breaking (Type) provides enhanced protection against nuisance trips while maintaining quick fault isolation. Business Impact: Improved equipment protection and reduced downtime from transient faults. Application: Power distribution assemblies in hazardous locations. Feature: 60 Hz operation with a broad voltage window (125-250 Vac/480 Vac) and dual horsepower ratings (1 hp/3 hp) support a wide range of devices. Business Impact: Flexible power compatibility reduces inventory needs and accelerates project delivery. Application: Mixed loads in process automation and heavy equipment control. Feature: Factory-sealed construction and Style 2 grounding deliver reliable environmental sealing and solid fault protection. Business Impact: Lower ingress risk, improved safety compliance, and minimized maintenance disruption. Application: Explosion-protected receptacle installations in harsh industrial zones.

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FAQs

CPS732 311 is designed for hazardous locations and carries NEC/CEC compliance with UL certifications. It supports Class I, Division 1 and 2 service and integrates into through-feed back box configurations. The single-gang, 1" trade size format simplifies retrofit installs and new builds, reducing site modifications and enabling faster commissioning in demanding plants.
The receptacle assembly provides an amperage of 7A/30A and a three-wire, four-pole configuration. It supports 60 Hz operation with a voltage rating of 125-250 Vac or 480 Vac, and a horsepower range of 1 hp/3 hp. These specs enable flexible motor and control circuits while maintaining safe fault isolation in hazardous zones.
Yes. CPS732 311 is specified as a through-feed back box style unit, designed for single-gang installations with through-feed wiring. This configuration simplifies field wiring, minimizes enclosure openings, and improves ingress protection, which is particularly valuable in Class I/Div 1 environments where sealing and reliability are critical.
CPS732 311 adheres to NEC/CEC standards and is certified for hazardous locations per UL listings. It supports Hazardous/Classified Locations with UL certification for use in Class I, Division 1 and Division 2 areas. This ensures regulatory alignment for safe installation in oil, gas, chemical, and mining facilities.
Factory sealing and brass/copper-free aluminum construction minimize corrosion, reduce maintenance intervals, and lower total cost of ownership. The robust through-feed design streamlines installation and future expansions, while the standardized 1" trade size and 60 Hz/dual voltage ratings help standardize inventory and improve project ROI in hazardous-location applications.