Eaton FLB140 WT30 2 Circuit Breaker - Explosionproof
Part Number: FLB140 WT30 2
Quick Summary
Eaton FLB140 WT30 2 Circuit Breaker protects electrical circuits in hazardous areas. Maintenance teams in harsh environments need dependable protection that minimizes nuisance trips and compliance risk. It carries NEC/CEC standards and hazardous-location ratings (Class I, Division 1 & 2; Class II, Division 1 & 2; Class III), plus robust NEMA compatibility (3, 4, 7, 9). This rugged, 1" trade-size unit uses copper-free aluminum and threaded cover construction to simplify installation and reduce maintenance costs, while meeting demanding industry requirements. By pairing proven thermal-magnetic protection with a proven enclosure approach, it delivers reliability for critical processes and supports safe, compliant operation in demanding facilities.
Product Information
Extended Description
FLB140 WT30 2 Eaton: Eaton Crouse-Hinds series FLB circuit breaker, 30A, EHD frame type, Thermal magnetic, Threaded cover construction, Copper-free aluminum, Cutler-Hammer breaker, Two-pole, Non-interchangeable trip, 1", 480 Vac/250 Vdc
Product Name
Eaton Crouse-Hinds series FLB circuit breaker
Catalog Number
FLB140 WT30 2
UPC
782274019598
Product Length/Depth
6.25 in
Product Height
10.25 in
Product Width
7 in
Product Weight
14.1 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 4 7 9
Enclosure
With circuit breaker
Amperage Rating
30 A
Circuit breaker type
Thermal magnetic
Voltage rating
480 Vac/250 Vdc
Number of poles
Two-pole
Trade size
1"
Manufacturer
Cutler-Hammer
Circuit breaker frame type
EHD
Enclosure cover construction
Threaded
Enclosure material
Copper-free aluminum
Special features
Non-interchangeable trip
FLB Series Explosionproof Circuit Breakers catalog page
FLB Explosionproof Circuit Breakers Canadian certification
FLB Explosionproof Circuit Breakers Canadian certification
IF 1016 - FLB Series Circuit Breakers
Eaton Specification Sheet - FLB140 WT30 2
Feature: Thermal-magnetic trip for 30 A, two-pole protection in a 1" trade-size enclosure. Business Impact: Delivers fast short-circuit interruption with coordinated overload protection, reducing arc-flash risk and minimizing unplanned downtime. Application: Control panels and switchgear in hazardous locations where reliable overcurrent protection is essential. Feature: EHD frame with threaded cover and copper-free aluminum enclosure. Business Impact: Provides a rugged, corrosion-resistant housing that is lighter for easier handling and installation, improving serviceability in tight spaces. Application: Indoor/outdoor installations with restricted access and elevated environmental requirements. Feature: Non-interchangeable trip. Business Impact: Ensures consistent, device-specific tripping characteristics, lowering risk from improper replacement and simplifying maintenance planning. Application: Critical process circuits where fixed coordination is required. Feature: Certifications and ratings (Hazardous/Classified Locations, NEC/CEC, NEMA 3, 4, 7, 9). Business Impact: Compliance-ready protection that reduces engineering overhead and accelerates approvals for regulated facilities. Application: Chemical plants, refineries, mining, and other environments with hazardous classifications. Feature: Enclosure integration (with circuit breaker). Business Impact: Streamlines installation and commissioning by delivering a ready-to-mount protection solution. Application: Retrofit and new installations where fast deployment is valued. Feature: Documentation availability (IF 1016, specification sheet). Business Impact: Decreases field risk through validated wiring guidance and installation best practices. Application: Field service, panel builders, and OEM applications seeking reliable references.
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FAQs
Follow the IF 1016 installation sheet to ensure proper wiring and torque on copper-free aluminum conductors. Use standard 1" conduit fittings and compatible enclosures, verify threading on the cover, and maintain required clearances around the device. Confirm NEC/CEC compliance for your specific installation and verify termination torque per the manufacturer's guidelines.
The breaker uses a thermal-magnetic trip with a non-interchangeable trip mechanism. This provides controlled overload protection with fast magnetic response for short circuits, supporting predictable coordination with upstream devices and reducing nuisance trips in variable loads.
Yes. The unit is rated for 480 Vac and 250 Vdc, delivering 30 A in a two-pole configuration. This makes it suitable for mixed AC/DC protection schemes in hazardous environments, while meeting the protection needs of control panels and switchgear in classified locations.
It carries NEC/CEC standards, plus hazardous-location ratings for Class I, Division 1 & 2; Class II, Division 1 & 2; Class III. NEMA ratings include 3, 4, 7, and 9. The combination of these certifications supports compliant operation in hazardous environments and helps streamline approvals during project engineering.
Maintenance is streamlined by a rugged, copper-free aluminum enclosure and a non-interchangeable trip, reducing field adjustments and misconfiguration risk. The integration of a ready-to-mount enclosure plus available installation documentation shortens commissioning time, lowers lifecycle costs, and improves process uptime in safety-critical facilities.