Eaton EBMBB TT70TED34 Explosionproof Breaker - NEC/CEC
Part Number: EBMBB TT70TED34
Quick Summary
The Eaton Crouse-Hinds EBMB circuit breaker provides reliable overcurrent protection for hazardous-location equipment in industrial plants. Maintenance teams face downtime and the challenge of achieving rigorous hazardous-location certifications during retrofits. The unit meets NEC/CEC standards and hazardous-location classifications (Class I, Division 1/2; Class II/III) with broad NEMA ratings. Designed for 150A frame, 3-pole operation, and a 480 Vac/250 Vdc rating, it features bolted/ground joint/gasketed cover construction and copper-free aluminum enclosure for tougher environments. This combination supports safer installations, quicker commissioning, and reduced lifecycle costs, delivering a robust protection solution for U.S. and international facilities while aligning with typical engineering specifications and procurement requirements.
Product Information
Extended Description
EBMBB TT70TED34 Eaton: Eaton Crouse-Hinds series EBMB circuit breaker, 10A through 150A, TED frame type, Bolted/ground joint/gasketed cover construction, Copper-free aluminum, 150A frame size, General Electric breaker, Three-pole, 70A trip, 480 Vac/250 Vdc
Product Name
Eaton Crouse-Hinds series EBMB circuit breaker
Catalog Number
EBMBB TT70TED34
UPC
782274884837
Product Length/Depth
14.78 in
Product Height
26.9 in
Product Width
10.25 in
Product Weight
83 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
150A
Amperage Rating
10 A through 150 A
Manufacturer
General Electric
Circuit breaker frame type
TED
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 - EBMBB TT70TED34
Explosionproof design and TED frame construction deliver rugged protection for high-risk environments, reducing ignition risk in chemical plants, refineries, and offshore facilities. The result is safer motor feeders and control circuits, with quicker commissioning and less downtime. The 150A frame size and a permissible range of 10 A through 150 A provide engineers with flexibility to protect a wide spectrum of circuits without oversizing switchgear, minimizing spare parts and installation costs. Copper-free aluminum enclosure and bolted/ground joint/gasketed cover deliver superior corrosion resistance and sealing in dusty or humid spaces, lowering maintenance needs and extending service life. NEC/CEC compliance and hazardous-location classifications (Class I, Division 1/2; Class II/III) simplify cross-border procurement and regulatory approvals, while broad NEMA ratings (3, 3R, 4, 7, 9, 12) broaden panel compatibility across markets. Compatibility with standard Eaton accessories and an 83 lb weight support safer handling and faster field installation, enabling reliable performance in panels, switchgear, and motor control centers under demanding conditions. In practice, users report reduced downtime and easier documentation for hazardous-location projects when specifying EBMB series breakers.
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FAQs
Yes. EBMB TT70TED34 is designed to integrate with standard Eaton accessories and switchgear interfaces. Its TED frame and 3-pole configuration map to common control schematics, simplifying panel layout and enabling straightforward retrofits in legacy equipment without extensive rewiring.
The EBMB TT70TED34 adheres to NEC/CEC standards and Hazardous/Classified Locations classifications, including Class I Divisions 1 and 2, Class II Divisions 1 and 2, and Class III. It also aligns with multiple NEMA ratings (3, 3R, 4, 7, 9, 12) to support diverse regional requirements.
Key specs include a 480 Vac / 250 Vdc rating, 150A frame size, and a 10 A through 150 A amperage range. The enclosure is copper-free aluminum with a bolted/ground joint/gasketed cover, and the unit is a three-pole design suitable for integration into motor control centers and feeders.
Industries such as chemical processing, oil and gas, refining, mining, and any operation with hazardous locations benefit from EBMB TT70TED34 due to its robust explosionproof design, enhanced safety, and regulatory-compliant performance in harsh environments.
Choosing EBMB TT70TED34 reduces downtime through reliable protection and longer service life in hazardous locations. Its compliance with NEC/CEC and broad NEMA ratings simplifies approvals and cross-border projects, while its durable enclosure and design minimize frequent replacements and field maintenance costs over the equipment lifecycle.