Eaton EBMBA WT20FDB36 Circuit Breaker - Explosionproof
Part Number: EBMBA WT20FDB36
Quick Summary
EBMBA WT20FDB36 is an explosionproof circuit breaker used to protect electrical distribution in hazardous locations. It helps engineers prevent arc-flash and nuisance outages by selecting a device rated for hazardous area service with robust enclosure features. Compliance priorities are met with NEC/CEC hazard ratings and broad NEMA coverage, including Class I Division 1 and 2, Class II Division 1 and 2, Class III, and NEMA ratings 3, 3R, 4, 7, 9, 12. Designed for industrial users, it offers a 600 Vac supply capability, a 150 A frame, and a wide amperage range of 10 to 70 A, enabling precise protection with fewer parts and simpler procurement. In practice, teams gain faster commissioning, safer shutdowns, and consistent performance across harsh environments.
Product Information
Extended Description
EBMBA WT20FDB36 Eaton: Eaton Crouse-Hinds series EBMB circuit breaker, 10A through 70A, FDB frame type, Bolted/ground joint/gasketed cover construction, Copper-free aluminum, 150A frame size, Cutler-Hammer breaker, Three-pole, 20A trip, 600 Vac
Product Name
Eaton Crouse-Hinds series EBMB circuit breaker
Catalog Number
EBMBA WT20FDB36
UPC
662276034747
Product Length/Depth
14.78 in
Product Height
19.4 in
Product Width
10.25 in
Product Weight
102 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
600 Vac
Frame size
150A
Amperage Rating
10 A through 70 A
Manufacturer
Cutler-Hammer
Circuit breaker frame type
FDB
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 1616 - Flange Gasket Replacement Kit
IF 1616 - Flange Gasket Replacement Kit
IF 1616 - Flange Gasket Replacement Kit
Eaton Specification Sheet - EBMBA WT20FDB36
Feature: Explosionproof construction for hazardous locations → Business Impact: Enables compliant, safer protection in oils, gases, and dust environments; reduces risk of non-compliant shutdowns and costly outages; Application: Oil & gas facilities, chemical plants, mining operations. Feature: FDB frame type with 150 A frame size → Business Impact: Supports high-current distribution with compact footprint; Application: Main feeder panels and switchgear in harsh facilities. Feature: Three-pole design with 600 Vac rating → Business Impact: Enhanced protection for three-phase systems; Application: Industrial power distribution and motor control centers. Feature: Enclosure with bolted/ground joint/gasketed cover and copper-free aluminum → Business Impact: Superior ingress protection, corrosion resistance, lighter installation and maintenance; Application: Outdoor or harsh indoor environments, shipyards, refineries. Feature: Amperage range from 10 A through 70 A → Business Impact: Flexible protection tailored to load profiles; Application: Motor starters, process controls, and panel boards. Feature: NEC/CEC compliance, Class I/II/III and NEMA ratings 3, 3R, 4, 7, 9, 12 → Business Impact: Ready-to-specification device for global projects; Application: Regulated facilities requiring robust certification for peace of mind and quicker approvals.
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FAQs
The EBMBA WT20FDB36 is designed specifically for 600 Vac three-pole service with a 150 A frame, making it suitable for main feeders and control circuits in industrial distributions. It uses the FDB frame type and a copper-free aluminum enclosure, while supporting a broad amperage range. Always verify enclosure sizing and mounting compatible with your panel design.
This breaker carries NEC/CEC compliance and hazardous location ratings including Class I Division 1 and 2, Class II Division 1 and 2, and Class III. It also aligns with NEMA ratings 3, 3R, 4, 7, 9, 12, ensuring suitability for a wide range of demanding environments and regulatory requirements.
The EBMBA WT20FDB36 covers an amperage range of 10 A through 70 A and is configured as a three-pole device. It supports a 150 A frame and a 600 Vac rating, with a 20 A trip option embedded in the design. This combination provides flexible protection for three-phase motor loads and distribution circuits.
Installation advantages include a bolted/ground joint with gasketed cover and a copper-free aluminum enclosure, which improves ingress protection and corrosion resistance. For maintenance, consider gasket replacement kits (IF 1616 family) and consult installation sheets, catalogs, and SP3D design packages to ensure proper fit and ongoing reliability in hazardous locations.
By combining explosionproof protection with NEC/CEC and NEMA certifications, this breaker reduces regulatory risk and downtime in hazardous locations. Its durable copper-free construction and standardized frame design shorten commissioning, while the broad amperage range and high current capability minimize spare parts and maintenance costs over the asset life.