Eaton EBMBA WT30EHD34 Explosionproof Circuit Breaker - HazLoc
Part Number: EBMBA WT30EHD34
Quick Summary
EBMBA WT30EHD34 is an explosionproof circuit breaker designed for hazardous locations in industrial power systems. Engineers often struggle to protect critical equipment in harsh environments while meeting strict NEC/CEC requirements and UL certifications. This model delivers robust protection and lifecycle reliability while supporting area classifications for Hazardous/Classified Locations, with NEMA ratings 3, 3R, 4, 7, 9, 12 backing it. For procurement and installation teams, the combination of a 100A frame, copper-free aluminum enclosure, and a bolted/ground joint/gasketed cover reduces maintenance cycles and simplifies field service in challenging facilities. The result is safer operations, improved uptime, and predictable compliance across demanding industrial applications.
Product Information
Extended Description
EBMBA WT30EHD34 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, 30A trip, 480 Vac/250 Vdc
Product Name
Eaton Crouse-Hinds series EBMB circuit breaker
Catalog Number
EBMBA WT30EHD34
UPC
782274778259
Product Length/Depth
14.78 in
Product Height
19.4 in
Product Width
10.25 in
Product Weight
68 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 UL certification
EBMB Explosionproof Circuit Breakers UL certification
IF 1149 - Wiring
IF 1149 - Wiring
IF 1149 - Wiring
Eaton Specification Sheet - EBMBA WT30EHD34
Explosionproof protection with the EBMB three-pole design enables reliable shutdown and fault containment in hazardous environments, reducing risk to personnel and downstream equipment while aligning with NEC/CEC standards. The WT30EHD34’s 100A frame and 480 Vac/250 Vdc rating support high-current distribution in demanding plants, translating to fewer panels and simpler system architecture for engineers and procurement teams. The copper-free aluminum enclosure offers corrosion resistance and lighter weight compared with traditional materials, improving installation efficiency and long-term maintenance costs in aggressive environments. Enclosure cover construction combines bolted, ground joint, and gasketed features to enhance enclosure integrity, streamline sealing, and support compliant field servicing. This model, with a 15 A through 70 A amperage range and a 30A trip specification, delivers flexible protection while ensuring rapid coordination with downstream protections. In practice, these attributes drive uptime, lower lifecycle costs, and easier audits in chemical, oil & gas, mining, and offshore applications. Long-term ROI is further boosted by available installation literature, 3D design packages, and UL/Hazardous Location certifications that simplify engineering approval processes.
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FAQs
The WT30EHD34 is designed for installation in hazardous or classified locations with a copper-free aluminum enclosure and bolted/ground joint/gasketed cover. Follow the IF 1149 wiring sheets and the Eaton installation instructions to ensure proper wiring, air clearance, and enclosure sealing. Verify compatibility with your enclosure and local codes before field mounting.
Key specs include a 15 A through 70 A amperage rating, 480 Vac / 250 Vdc voltage rating, and a 100 A frame size. The model features a 30 A trip setting, three-pole configuration, and is intended for high-current distribution in hazardous environments, supporting reliable interruption and fault isolation.
Ideal for chemical processing, oil and gas, mining, and offshore facilities, where hazardous classifications and area classifications require robust explosionproof protection, NEC/CEC compliance, and reliable protection against arcing and equipment damage in harsh conditions.
This breaker carries NEC/CEC compliance, NEC hazardous rating (Class I, Division 1 & 2; Class II, Division 1 & 2; Class III), NEMA ratings 3, 3R, 4, 7, 9, 12, and UL certification for use in hazardous locations, ensuring regulatory alignment and audit readiness.
With a copper-free aluminum enclosure and a gasketed, bolted cover, the WT30EHD34 reduces corrosion-related maintenance and simplifies field servicing. Availability of 3D models, installation literature, and certification paperwork streamlines spares planning, compliance audits, and total cost of ownership for long-term protection in harsh environments.