Eaton DBR56742 WT90 3 Interlocked Receptacle - Hazardous

Part Number: DBR56742 WT90 3
Eaton Crouse-Hinds logo
Manufacturer
Eaton Crouse-Hinds
Part number
DBR56742 WT90 3

Quick Summary

Eaton Crouse-Hinds Arktite DBR interlocked receptacle is a rugged interlock solution for hazardous-location electrical panels. In hazardous environments, unintentional energization and downtime can be costly; this design helps prevent misoperation and improves operator safety. It carries NEC/CEC compliance and hazardous-location ratings, including Class II, Division 1 and Class II, Division 2, with Class III, plus NEMA 3, 9, 12 enclosure protection. With an integrated 90 A circuit-breaker, 60 A receptacle, and a 600 Vac rating, the unit streamlines installation and strengthens overall plant safety and uptime. Designed for easy field servicing and compatibility with standard Cutler-Hammer components, it supports reliable, long-term operation in demanding industrial environments.

Product Information

Extended Description

DBR56742 WT90 3 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Arktite DBR interlocked receptacle, 60A, 90A circuit breaker, Three-wire, four-pole, Brass contacts, With breaker, Style 2, Cutler-Hammer, Copper-free aluminum, Spring door, 1-1/2", 600 Vac
Product Name
Eaton Crouse-Hinds series Arktite DBR interlocked receptacle
Catalog Number
DBR56742 WT90 3
Product Length/Depth
7.25 in
Product Height
22.75 in
Product Width
8.13 in
Product Weight
1 lb
UPC
782274041902
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 9 12
Enclosure type
With breaker
Receptacle style
Spring door
Amperage Rating
60A
Grounding style
Style 2
Configuration
Three-wire, four-pole
Voltage rating
600 Vac
Trade size
1-1/2"
Circuit breaker amperage
90A
Manufacturer
Cutler-Hammer
Material
Copper-free aluminum
Contact material
Brass
Interlocked design ensures the receptacle cannot energize while the circuit is open, reducing the risk of arc flash and inadvertent contact. This translates to improved operator safety and lower maintenance costs in hazardous locations. Use it in classification areas like Class II Division 1/2 and Class III environments where safety interlocks are mandated. Enclosed circuit breaker (90A) protects equipment from overcurrent and nuisance trips, simplifying wiring, reducing panel space, and accelerating installation in confined enclosures. Apply it in mining sites and chemical processing where compact, integrated protection is valuable. Copper-free aluminum enclosure reduces weight and corrosion risk in harsh environments; brass contacts ensure reliable conductivity, supporting long service life in hot, dusty settings. Grounding style Style 2 and three-wire four-pole configuration enhances safety and fault clearing. With 1-1/2 in trade size and 600 Vac rating, it covers high-power protection in standard industrial feeders. The spring door receptacle style protects from dust ingress and simplifies maintenance, delivering dependable performance in demanding plants.

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FAQs

Installation requires a compatible hazardous-location enclosure and standard wiring methods for three-wire, four-pole configurations. Ensure the 1-1/2 inch trade size is appropriate for the conduit and that the enclosure environment meets NEC/CEC and area classifications (Hazardous/Classified Locations). Verify grounding (Style 2) and that the integrated 90 A breaker is suitable for your feeder protection to prevent nuisance trips.
The interlock prevents energization when the circuit is not engaged, reducing the risk of arc flash and accidental contact during maintenance. This is essential in Class II Division 1/2 and Class III environments where downtime and safety incidents have significant cost implications. The spring door adds dust exclusion and controlled access, supporting reliable operation.
Yes. The DBR56742 WT90 3 is designed for seamless integration with Eaton/Cutler-Hammer systems, using a copper-free aluminum enclosure and brass contact materials. It supports a 60A receptacle with a 90A enclosed breaker, 600 Vac, and a 1-1/2 inch trade size, making field retrofit or replacement straightforward in existing hazardous-location infrastructure.
The unit is rated for hazardous/classified locations with NEC/CEC standards. It carries Class II Division 1 and Division 2, Class III ratings and NEMA 3, 9, 12 enclosure protection, ensuring compliance for demanding industrial installations and enabling safe operation in hazardous environments.
The integrated interlock and enclosed breaker reduce maintenance by preventing misoperation and minimizing nuisance trips, which lowers downtime. The robust copper-free aluminum enclosure and brass contacts withstand harsh environments, extending service life and reducing replacement costs. The product’s compatibility with standard Eaton components also lowers total cost of ownership through easier replacement and faster service.