Eaton EBMB WT50EHD34 Circuit Breaker - Explosionproof
Part Number: EBMBA WT50EHD34
Quick Summary
The Eaton EBMB WT50EHD34 circuit breaker protects hazardous locations, providing reliable overcurrent protection for industrial motors and feeders. In harsh environments, maintenance and compliance are costly; this unit offers rugged EHD enclosure, gasketed cover, and hazard-location certifications to simplify audits. It carries NEC/CEC compliance and hazardous-location ratings (Class I, Division 1/2; Class II, Division 1/2; Class III) along with broad NEMA enclosures ratings (3, 3R, 4, 7, 9, 12) to withstand demanding environments. This combination supports project timelines and budget by reducing compliance risk and downtime, while enabling seamless integration with 480 Vac/250 Vdc systems and a 100 A frame installation. For engineers and procurement teams, it translates to lower lifecycle cost and faster field deployment without sacrificing safety.
Product Information
Extended Description
EBMBA WT50EHD34 Eaton: Eaton Crouse-Hinds series EBMB circuit breaker, 15A through 70A, EHD frame type, Bolted/ground joint/gasketed cover construction, Copper-free aluminum, 100A frame size, Cutler-Hammer breaker, Three-pole, 50A trip, 480 Vac/250 Vdc
Product Name
Eaton Crouse-Hinds series EBMB circuit breaker
Catalog Number
EBMBA WT50EHD34
UPC
782274967516
Product Length/Depth
14.78 in
Product Height
19.4 in
Product Width
10.25 in
Product Weight
91 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 3R 4 7 9 12
Enclosure
With circuit breaker
Number of poles
Three-pole
Voltage rating
480 Vac/250 Vdc
Frame size
100A
Amperage Rating
15 A through 70 A
Manufacturer
Cutler-Hammer
Circuit breaker frame type
EHD
Enclosure cover construction
Bolted/ground joint/gasketed
Enclosure material
Copper-free aluminum
SP3D Design Package - EBMB Explosionproof Circuit Breakers
EBMB Series Explosionproof Circuit Breakers catalog page
EBMB Explosionproof Circuit Breakers Canadian certification
EBMB Explosionproof Circuit Breakers Canadian certification
IF 1149 - Wiring
IF 1149 - Wiring
IF 1149 - Wiring
Eaton Specification Sheet - EBMBA WT50EHD34
Feature: Explosionproof EBMB design with EHD frame and three-pole construction. Business Impact: Delivers robust protection against arc-flash and environmental ingress, reducing incident-related downtime. Application: Ideal for hazardous-location panels in chemical plants, offshore facilities, and refineries. Feature: Copper-free aluminum enclosure with bolted/ground joint/gasketed cover. Business Impact: Improves corrosion resistance and weight management while simplifying sealing against dust and moisture. Application: Suitable for harsh plant floors and outdoor installations where reliability matters. Feature: Electrical ratings 480 Vac / 250 Vdc, 50 A trip, and 3-pole configuration within a 100 A frame. Business Impact: Aligns with common plant feeders and motor circuits, enabling consistent coordination with upstream protection schemes. Application: Used for medium-current distribution in main panels and subpanels. Feature: NEC/CEC compliance plus hazardous-location area classification and NEMA ratings 3, 3R, 4, 7, 9, 12. Business Impact: Maximizes regulatory alignment and inspection readiness, reducing audit time and nonconformity risk. Application: Environments requiring rigorous certification, including IEC/UL pathways and Canadian approvals. Feature: Enclosure dimensions and weight (14.78 in depth, 19.4 in height, 10.25 in width, 91 lb). Business Impact: Facilitates routing, mounting, and spare-part planning in standard electrical rooms. Application: Design-in for space-constrained installations where footprint matters.
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FAQs
Plan for a bolted/ground joint with a gasketed cover to maintain enclosure integrity in hazardous areas. The unit is designed for 480 Vac / 250 Vdc systems and uses copper-free aluminum to ease handling and installation in space-constrained panels. Ensure compliance with NEC/CEC and local hazardous-location requirements during mounting and wiring.
The EBMB WT50EHD34 is a three-pole breaker with a 50 A trip rating, within an EHD frame sized for 100 A. It supports 480 Vac / 250 Vdc applications and is compatible with 15 A through 70 A operating ranges as part of the EBMB family. The unit is suitable for medium-current distributions in hazardous locations.
It carries NEC/CEC standards and Hazardous/Classified Locations area classifications, with NEC hazardous ratings covering Class I, Division 1 and 2, Class II Division 1 and 2, and Class III. It also offers NEMA ratings of 3, 3R, 4, 7, 9, and 12, supporting broad regulatory compliance for protection equipment in demanding environments.
Yes. As part of the EBMB Explosionproof Circuit Breakers family, it is designed to integrate with standard EBMB accessories and mounting practices. Availability of catalogs and 3D design packages helps with planning, installation, and field modifications in hazardous-location installations.
The rugged explosionproof design, gasketed enclosure, and certified hazardous-location ratings reduce unplanned downtime and audit risk. Longer service intervals, straightforward installation, and compatibility with common 480 Vac / 250 Vdc systems translate into lower lifecycle costs and faster project delivery.