Eaton FLB141 WT50 3 Circuit Breaker - Hazardous Locations
Part Number: FLB141 WT50 3
Quick Summary
Eaton FLB141 WT50 3 circuit breaker provides reliable overload protection in hazardous locations. Maintenance teams struggle with rugged enclosures that resist corrosion and meet evolving safety codes; this unit simplifies compliance and reduces downtime. It meets NEC/CEC standards and is rated for Hazardous/Classified Locations (Class I, Division 1/2; Class II, Division 1/2; Class III) and NEMA 3, 4, 7, 9. With a thermal-magnetic trip, threaded cover, and copper-free aluminum enclosure, it installs quickly in 1-1/4" panels, delivering reliable protection and predictable maintenance costs. Designed for Cutler-Hammer legacy systems, it ensures seamless compatibility with FLB-series assemblies.
Product Information
Extended Description
FLB141 WT50 3 Eaton: Eaton Crouse-Hinds series FLB circuit breaker, 50A, EHD frame type, Thermal magnetic, Threaded cover construction, Copper-free aluminum, Cutler-Hammer breaker, Three-pole, Non-interchangeable trip, 1-1/4", 480 Vac
Product Name
Eaton Crouse-Hinds series FLB circuit breaker
Catalog Number
FLB141 WT50 3
UPC
782274465098
Product Length/Depth
8.5 in
Product Height
13.38 in
Product Width
9.13 in
Product Weight
25.02 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
50 A
Circuit breaker type
Thermal magnetic
Voltage rating
480 Vac
Number of poles
Three-pole
Trade size
1-1/4"
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 - FLB141 WT50 3
With a 50 A amperage rating in a three-pole assembly, the FLB141 WT50 3 uses an EHD frame type to deliver precise overload protection for 480 Vac three-phase circuits. The business impact is reduced nuisance trips and improved motor protection, translating to fewer unplanned outages and lower maintenance costs. It is ideal for harsh environments where hazardous location compliance is required, such as chemical processing plants and power distribution panels. The enclosure features a threaded enclosure cover and a copper-free aluminum body, delivering rugged durability in corrosive environments. The design simplifies field service with secure, watertight access and reduces maintenance downtime by resisting exposure to harsh chemicals and moisture. This combination supports long service life in outdoor installations, offshore platforms, and other demanding industrial settings. NEC/CEC compliance is built in, with hazardous-location ratings covering Class I Division 1 and 2, Class II Division 1 and 2, and Class III, plus NEMA ratings 3, 4, 7, and 9. This breadth lowers approval risk during design reviews and streamlines procurement for regulated projects. End users benefit from documented conformity while maintaining consistent protection across facilities. The unit’s 1-1/4 inch trade size and three-pole architecture ensure straightforward compatibility with standard panels and distribution enclosures. The non-interchangeable trip provides predictable, coordinated protection, reducing the risk of mismatched devices and saving commissioning time. It’s an ideal choice for new installations and retrofits in industrial plants seeking certified, plug‑and‑play protection. Designed for integration with Eaton’s Crouse-Hinds FLB family, it leverages existing installation practices and spare parts inventories to support fast deployment. Field technicians appreciate the clear documentation, including installation sheets and datasheets, which minimize risk during startup. The result is enhanced reliability, clearer maintenance planning, and better total cost of ownership over the life of the system.
Get a Quick Quote for a Eaton FLB141 WT50 3
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton FLB141 WT50 3?
Enquire Now
FAQs
Consider mounting in an enclosure that supports the 1-1/4 inch trade size and three-pole FLB141 WT50 3. Use the threaded cover design for secure sealing and ensure the enclosure material is copper-free aluminum to resist corrosive environments. Verify NEC/CEC compliance and appropriate NEMA rating (3, 4, 7, 9) for your location and connect to a 480 Vac, three-phase supply.
The thermal-magnetic trip provides both instantaneous and thermal overload protection, reducing nuisance trips from temporary overloads while protecting motors and feeders from sustained faults. In 480 Vac three-phase systems, this means better coordination, reduced downtime, and longer equipment life when used in demanding industrial environments with fluctuating loads.
Yes. The unit uses a 1-1/4 inch trade size and a three-pole EHD frame, designed to fit standard installations that require a rugged, explosion-protected circuit breaker. The threaded cover and copper-free aluminum enclosure simplify maintenance, and the non-interchangeable trip provides predictable protection, aiding straightforward commissioning and future upgrades in compliant panels.
This model is certified for Hazardous/Classified Locations with NEC/CEC standards, Class I Division 1/2, Class II Division 1/2, and Class III ratings, and NEMA 3, 4, 7, 9. These certifications matter because they confirm suitability for harsh environments, streamline regulatory approvals, and reduce design risk in plants such as chemical processing facilities and oil & gas operations.
The rugged copper-free aluminum enclosure, threaded cover, and reliable thermal-magnetic protection reduce maintenance downtime and extend service life. Predictable trip behavior and compliance with NEC/CEC standards lower risk during startup and commissioning, while the enclosure’s durability minimizes corrosion-related replacement costs. Over the life of the system, total cost of ownership improves through fewer unplanned outages.