Eaton EBMX3B-W300 Circuit Breaker - Explosionproof 600 Vac
Part Number: EBMX3B-W300
Quick Summary
The Eaton EBMX3B-W300 Circuit Breaker is a rugged protective device for hazardous-location control panels and motor starters. When uptime matters, you need reliable protection that reduces nuisance trips and simplifies maintenance in tough environments. This model carries NEC/CEC compliance, UL hazardous-location certifications, and a NEMA rating of 3R 4X 7 9, ensuring safe operation across demanding installations. With a copper-free aluminum enclosure and a Size 3 form factor, it combines durable protection with manageable weight. By aligning with Eaton’s EBMXB family and providing comprehensive installation assets, it supports faster commissioning and lower total cost of ownership for industrial facilities.
Product Information
Extended Description
EBMX3B-W300 Eaton: Eaton Crouse-Hinds series clamped EBMXB circuit breaker, Copper-free aluminum, Size 3 enclosure, 300A, Eaton breaker, Three-pole, 600 Vac
Product Name
Eaton Crouse-Hinds series clamped EBMXB circuit breaker
Catalog Number
EBMX3B-W300
UPC
662276605930
Product Length/Depth
42.28 in
Product Height
13.85 in
Product Width
17.93 in
Product Weight
211 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Zone 1 Class I, Division 2 Class I, Zone 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3R 4X 7 9
Enclosure cover construction
Clamped
Enclosure size
Size 3
Enclosure
With circuit breaker
Manufacturer
Eaton
Voltage rating
600 Vac
Interrupt rating
300 AIC
Number of poles
Three-pole
Enclosure material
Copper-free aluminum
SP3D Design Package - Clamped EBMXB Explosionproof Circuit Breakers
Clamped EBMX Series Explosionproof Combination Motor Starters Brochure
Clamped EBMX Series Explosionproof Combination Motor Starters Brochure
Clamped EBMXB Series Explosionproof Circuit Breakers catalog page
Clamped EBMXB Explosionproof Circuit Breakers UL certification
Clamped EBMXB Explosionproof Circuit Breakers UL certification
IF 1616 - Flange Gasket Replacement Kit
IF 1616 - Flange Gasket Replacement Kit
IF 1616 - Flange Gasket Replacement Kit
Eaton Specification Sheet - EBMX3B-W300
Copper-free aluminum enclosure reduces weight and corrosion, enabling easier handling and longer service life in harsh environments. This translates to lower installation and maintenance costs while preserving enclosure integrity in hazardous locations. The clamped enclosure cover simplifies field assembly and service, shortening downtime during inspections and part replacements. In addition, the 600 Vac rating and 300 AIC interrupt capacity deliver robust fault protection, improving system reliability and reducing arc-flash exposure for maintenance teams. The three-pole configuration plus Size 3 enclosure supports high-demand motor loads without compromising safety or enclosure compatibility, streamlining panel layouts and spare-parts planning. NEC/CEC compliance and NEMA ratings of 3R 4X 7 9 ensure regulatory alignment and durable outdoor or washdown performance, while UL certifications validate cross-border applicability. Together with the provided design assets—3D models, spec sheets, and catalogs—engineering teams can accelerate validation, procurement, and installation workflows, cutting project risk and total cost of ownership.
Get a Quick Quote for a Eaton EBMX3B-W300
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton EBMX3B-W300?
Enquire Now
FAQs
Yes. The EBMX3B-W300 is engineered for Hazardous/Classified Locations with NEC/CEC compliance and UL hazard-location certifications, supporting Class I Division 1 and Zone 1 installations. Its Size 3 enclosure and clamped cover design simplify mounting in demanding panels and ensure reliable sealing in tough environments.
The device is rated for 600 Vac with a 300 AIC interrupt rating and features a three-pole configuration. This combination provides robust short-circuit protection for medium-to-large motor loads while maintaining safe, code-compliant operation in hazardous locations.
Industries with hazardous environments such as oil & gas, chemical processing, mining, and petrochemical facilities benefit most. The rugged clamped EBMXB design supports control panels, motor starters, and power-distribution equipment in areas requiring explosionproof protection and durable performance over time.
The EBMX3B-W300 aligns with NEC/CEC standards, carries NEMA ratings of 3R 4X 7 9, and is UL-certified for use in hazardous locations in the US and Canada. These certifications validate safe operation, regulatory compliance, and cross-border applicability for industrial deployments.
_Eaton_ provides extensive assets including SP3D design packages, installation instructions, catalogs, and the EBMX3B-W300 specification sheet. Access to 3D models and replacement-part lists helps accelerate validation, procurement, and commissioning while reducing field downtime and total cost of ownership.