Eaton EFDC21106 EFD Circuit Breaker - Explosionproof
Part Number: EFDC21106
Quick Summary
Eaton EFDC21106 EFD circuit breaker protects electrical systems in hazardous industrial locations. Maintenance teams struggle with nuisance trips and safety compliance in explosion-prone spaces. This unit carries NEC/CEC compliance and hazardous-location ratings including Class I Division 1 and Division 2, Class II Division 1/2, and Class III, with compatible NEMA ratings 3, 7, 9, 12. Designed for single-pole, single-gang installations, through-feed configurations, and bolted/ground joint cover, it integrates with Square D systems. With a 30 A rating at 120/240 Vac, it delivers reliable protection while simplifying retrofits and new builds. The combination of Feraloy iron alloy enclosure material and rugged construction helps minimize maintenance costs while maximizing uptime in demanding environments.
Product Information
Extended Description
EFDC21106 Eaton: Eaton Crouse-Hinds series EFD circuit breaker, 30A, 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
EFDC21106
UPC
782274033914
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
30 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 - EFDC21106
Feature: 30 A amperage rating with 120/240 VAC, compact 3/4 inch trade size for single-pole, through-feed operation. Impact: Enables precise, scalable protection without oversized enclosures, reducing panel footprint and installation time. Application: Ideal for space-constrained hazardous-location panels in industrial facilities where reliability and quick retrofits matter. Feature: Bolted/ground joint enclosure cover construction and Feraloy iron alloy housing. Impact: Delivers rugged protection against impact, heat, and harsh chemicals, lowering maintenance needs and extending service life. Application: Well-suited for chemical plants and mining sites where explosionproof enclosures are mandatory. Feature: Square D compatibility with through-feed, single-gang design. Impact: Simplifies retrofits and cross-brand integration, saving engineering time and reducing field wiring complexity. Application: Works seamlessly with existing Square D control systems and legacy panels in mature facilities. Feature: NEC/CEC compliance and hazardous-location ratings (Class I Div 1/2, Class II Div 1/2, Class III). Impact: Enhances safety governance and regulatory posture, supporting audit readiness and risk reduction. Application: Required in facilities with strict compliance requirements and documented hazard analyses. Feature: NEMA ratings 3, 7, 9, 12. Impact: Provides enclosure protection for dust, water, and corrosive environments, improving uptime. Application: Suitable for indoor and outdoor installations in demanding industrial environments.
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FAQs
EFDC21106 is designed as a single-pole, single-gang device with a 3/4" trade size and through-feed configuration. It features a bolted/ground joint enclosure and Feraloy iron alloy housing for rugged protection, making it suitable for Class I and II hazardous locations. When wiring, ensure compliance with NEC/CEC and follow manufacturer guidelines for through-feed terminations in explosionproof enclosures.
Key specs include a 30 A amperage rating, 120/240 VAC voltage rating, and a 3/4" trade size. It is a single-pole, single-gang unit with a bolted/ground joint enclosure and Feraloy iron alloy housing. These features support reliable protection in hazardous locations while remaining compatible with Square D systems.
Yes. EFDC21106 carries NEC hazardous-location ratings including Class I Division 1 and Division 2, as well as Class II Division 1/2 and Class III. This makes it appropriate for environments with flammable gases, vapors, and combustible dust, provided installation follows NEC/CEC guidelines and panel requirements.
EFDC21106 supports NEC/CEC compliance and NEMA ratings 3, 7, 9, 12. These certifications ensure regulatory alignment, safe operation in hazardous locations, and suitable enclosure protection for outdoor and harsh industrial environments.
The device reduces maintenance through rugged Feraloy construction and a robust enclosure, minimizes nuisance trips with precise 30 A protection, and simplifies retrofits with Square D compatibility. Over the life of the installation, this translates to lower downtime, fewer spare parts, and faster commissioning in hazardous-location facilities.