Eaton EFDC21104 EFD Circuit Breaker - Hazardous Location
Part Number: EFDC21104
Quick Summary
Eaton EFDC21104 EFD circuit breaker protects hazardous-location electrical systems by providing reliable overcurrent protection. This through-feed, single-pole unit fits compact panels while delivering rugged, maintenance-friendly performance. It carries NEC/CEC compliance and Area classification for Hazardous/Classified Locations, plus robust NEMA ratings 3, 7, 9, and 12, ensuring dependable operation in demanding environments. Designed for industrial control panels and machinery enclosures, it supports safe, code-compliant installations. The compact 3/4" trade size and 120/240 Vac capability help streamline design margins and reduce total cost of ownership in mission-critical applications.
Product Information
Extended Description
EFDC21104 Eaton: Eaton Crouse-Hinds series EFD circuit breaker, 15A, Bolted/ground joint cover construction, Feraloy iron alloy, Square D breaker, Single-gang, Single-pole, Through feed, 3/4", 120/240 Vac
Product Name
Eaton Crouse-Hinds series EFD circuit breaker
Catalog Number
EFDC21104
UPC
782274278360
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 II, Division 1 Class II, Division 2 Class III
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
EFD and EFDC Series Explosionproof Circuit Breakers catalog page
Eaton Specification Sheet - EFDC21104
Explosionproof protection in hazardous locations is the core feature, reducing risk of arc ignition and safeguarding personnel and equipment with compliant performance. This translates to lower maintenance costs and fewer unplanned outages for chemical plants, refineries, and mining operations. The bolted/ground joint enclosure cover enhances sealing integrity, enabling safer service and quicker replacements in harsh environments. The Feraloy iron alloy enclosure delivers superior ruggedness and corrosion resistance, extending service life where chemicals, dust, and moisture are present. With a 3/4" trade size and single-gang form factor, installation into standard panels is straightforward, minimizing retrofit costs and downtime. A 15 A rating on 120/240 Vac circuits supports common control and protection schemes, improving system reliability. The NEC/CEC conformity and NEMA ratings provide clear compliance benchmarks, reducing design review questions for procurement and risk management teams. The unit’s single-pole, through-feed design simplifies wiring, enabling faster panel wiring and scalable protection for expanding lines.
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FAQs
EFDC21104 is ideal for hazardous-location panels in chemical plants, refineries, and mining environments. Its through-feed, single-pole design fits single-gang enclosures with a 3/4" trade size, ensuring safe, code-compliant protection in tight spaces where explosion-protected devices are required.
The EFDC21104 belongs to Eaton's explosionproof EFD family and is certified for Hazardous/Classified Locations with NEC/CEC compliance and compatible NEMA ratings (3, 7, 9, 12). The bolted/ground joint enclosure and Feraloy iron alloy body provide robust protection against ignition sources in harsh environments.
Yes. Its single-pole, single-gang form factor, 3/4" trade size, and through-feed design are selected for easy drop-in compatibility with common electrical panels and control cabinets, reducing modification needs and speeding installation in new or retrofit projects.
EFDC21104 carries NEC/CEC standards, hazard classifications for Areas designated Hazardous/Classified Locations, and NEMA ratings 3, 7, 9, and 12. It is designed for reliable operation in hazardous atmospheres and supports compliance-driven procurement and commissioning.
The rugged EFDC21104 design minimizes nuisance trips and maintenance in harsh environments, reducing downtime and service costs. The durable enclosure and compliant construction provide long-term reliability, lowering lifecycle costs and improving system availability for critical industrial processes.