Eaton CPS732 311 Receptacle Assembly - Hazardous Locations
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
Arktite CPS, CPP and CPR Explosionproof Receptacles and Plugs catalog page
Arktite CPS, CPP, CPR Explosionproof Receptacles, Plugs and Connectors UL certification
Arktite CPS, CPP, CPR Explosionproof Receptacles, Plugs and Connectors UL certification
IF 165 - CPS Receptacles
IF 165 - CPS Receptacles
Eaton Specification Sheet - CPS732 311
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.