Eaton EFDC21104 GB Circuit Breaker - Hazardous Locations
Part Number: EFDC21104 GB
Quick Summary
Eaton EFDC21104 GB is a compact explosionproof circuit breaker designed for hazardous-location applications in industrial facilities. It delivers 15 A protection in a single-pole, through-feed design with a bolted/ground joint enclosure for reliable, maintenance-friendly installations in control panels. End users often contend with strict safety codes, inconsistent enclosure compatibility, and nuisance trips that drive downtime; this device helps mitigate those issues with a Group B rating and NEC/CEC compliance. The unit’s certifications, including Area Classification for Hazardous/Classified Locations and robust NEMA ratings (3, 7, 9, 12), support safe operation in demanding environments. By combining rugged construction with straightforward installation, it reduces risk and supports long-term reliability in industrial protection schemes.
Product Information
Extended Description
EFDC21104 GB Eaton: Eaton Crouse-Hinds series EFD circuit breaker, 15A, Bolted/ground joint cover construction, Feraloy iron alloy, Square D breaker, Single-gang, Single-pole, Group B rated, Through feed, 3/4", 120/240 Vac
Product Name
Eaton Crouse-Hinds series EFD circuit breaker
Catalog Number
EFDC21104 GB
UPC
782274781808
Product Length/Depth
3.5 in
Product Height
7.13 in
Product Width
5 in
Product Weight
7.47 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class III Class II, Division 1 Class II, Division 2
NEMA Rating
3 7 9 12
Enclosure
With circuit breaker
Number of gangs
Single-gang
Style
Through feed
Amperage Rating
15 A
Trade size
3/4"
Manufacturer
Square D
Number of poles
Single-pole
Voltage rating
120/240 Vac
Enclosure cover construction
Bolted/ground joint
Enclosure material
Feraloy iron alloy
Special features
Group B rated
EFD and EFDC Series Explosionproof Circuit Breakers catalog page
Eaton Specification Sheet - EFDC21104 GB
Feature: Feraloy iron alloy enclosure and bolted/ground joint cover. Business Impact: Delivers superior durability and integrity in harsh environments, reducing ingress risk and the need for frequent replacements. Application: Control panels deployed in chemical plants or oil & gas facilities where dust, moisture, and corrosive atmospheres are present. Feature: Through-feed, single-gang enclosure design with 3/4" trade size. Business Impact: Simplifies field wiring and panel layout, cutting installation time and errors. Application: Standardized panels in industrial plants requiring compact, space-efficient protection for small distributions. Feature: 15 A amperage rating with 120/240 Vac voltage rating. Business Impact: Provides appropriate protection for typical control circuits without nuisance tripping, improving uptime. Application: Local control circuits and motor-start/stop circuits within hazardous area equipment. Feature: Group B rated and NEC/CEC compliance. Business Impact: Enhances regulatory alignment and worker safety, reducing compliance risk and potential penalties. Application: Projects in North American facilities with stringent hazardous-location requirements. Feature: Area classification, Class I, Division 1/2, Class II, Division 1/2, Class III; NEMA 3, 7, 9, 12. Business Impact: Broad environmental suitability and legacy compatibility across diverse installations, lowering total cost of ownership. Application: Environments with volatile gases, dust, and rugged outdoor or industrial settings. Feature: Enclosure material and construction details (Feraloy iron alloy; bolted/ground joint). Business Impact: Long-term mechanical and thermal resilience, reducing maintenance cycles and replacement costs. Application: High-temperature or corrosive environments common to refinery and chemical processing facilities.
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FAQs
EFDC21104 GB uses a single-gang through-feed enclosure with a bolted/ground joint cover and a 3/4" trade size, designed for easy mounting in standard control panels. It supports installation in hazardous locations under NEC/CEC, with area classifications suitable for Class I Division 1 and 2 environments and compatible NEMA-rated enclosures for reliable protection.
This breaker is rated at 15 A and 120/240 Vac, with a Group B classification. It holds NEC/CEC compliance, Area Classification for Hazardous/Classified Locations, and NEMA ratings of 3, 7, 9, and 12, making it suitable for a wide range of hazardous-area applications.
Yes. The unit is designed for hazardous-location environments and carries Group B rating with NEC/CEC compliance, along with appropriate area classifications (Hazardous/Classified Locations) and robust NEMA ratings, ensuring safe and reliable protection in chemical processing and refining facilities.
Its rugged Feraloy iron alloy enclosure and bolted/ground joint construction resist harsh conditions, reducing maintenance intervals. The 15 A, 120/240 Vac rating matches common plant circuits, minimizing nuisance trips and downtime. Quick, straightforward installation and reliable protection also streamline ongoing servicing and panel upgrades.
Plan for a single-gang, through-feed installation with a 3/4" trade size and bolted/ground joint enclosure. Confirm panel compatibility with NEC/CEC requirements for hazardous locations and ensure enclosure rating aligns with the environment (Area Classification). The unit’s feraloy housing and Group B rating support long-term reliability in demanding industrial settings.