Eaton FLB142 WT90 3 Circuit Breaker - Hazardous Locations
Part Number: FLB142 WT90 3
Quick Summary
The Eaton FLB142 WT90 3 circuit breaker protects electrical circuits in hazardous locations by providing thermal magnetic protection for 480 Vac systems in industrial settings. This design addresses uptime challenges in harsh environments where nuisance trips and difficult maintenance threaten plant availability. NEC/CEC compliance, along with hazardous-area ratings such as Class I, Division 1 & 2, Class II, Division 1 & 2, and Class III, plus compatible NEMA ratings 3, 4, 7, 9, provide robust regulatory alignment. By combining rugged construction with standardized installation features, this unit delivers improved safety, easier service, and predictable performance for your critical business processes in automation and electrical protection.
Product Information
Extended Description
FLB142 WT90 3 Eaton: Eaton Crouse-Hinds series FLB circuit breaker, 90A, EHD frame type, Thermal magnetic, Threaded cover construction, Copper-free aluminum, Cutler-Hammer breaker, Three-pole, Non-interchangeable trip, 1-1/2", 480 Vac
Product Name
Eaton Crouse-Hinds series FLB circuit breaker
Catalog Number
FLB142 WT90 3
UPC
782274671444
Product Length/Depth
8.5 in
Product Height
13.38 in
Product Width
9.13 in
Product Weight
24.44 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
90 A
Circuit breaker type
Thermal magnetic
Voltage rating
480 Vac
Number of poles
Three-pole
Trade size
1-1/2"
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 - FLB142 WT90 3
Feature → Business Impact → Application: The FLB142 WT90 3 is a three-pole, 90 A circuit breaker for 480 Vac systems with a thermal magnetic trip; impact: reliable phase protection reduces motor stalls and electrical faults, increasing line uptime in hazardous locations; application: protects three-phase feeders and motors in chemical plants and refinery environments. Feature → Business Impact → Application: EHD frame with a 1-1/2" trade size and threaded enclosure cover enables compact integration into standard electrical panels; impact: faster installation and fewer custom enclosures, lowering project lead times; application: panel assemblies in industrial plants where space is at a premium and retrofit projects are common. Feature → Business Impact → Application: Copper-free aluminum enclosure reduces weight and corrosion risk; impact: easier field handling and lower long-term maintenance costs; application: outdoor or corrosive environments typical of mining or oil & gas facilities. Feature → Business Impact → Application: Non-interchangeable trip prevents incorrect replacement and ensures consistent trip settings; impact: enhanced safety, reduced nuisance trips, and predictable protection; application: plant-wide protection schemes where standardization matters. Feature → Business Impact → Application: Threaded cover construction supports sealed installations and reliable ingress protection; impact: improved reliability in hazardous environments with exposure to dust and moisture; application: hazardous-location control panels and switchgear in oil, gas, or chemical processing. Feature → Business Impact → Application: NEC/CEC compliance and NEMA ratings 3, 4, 7, 9 provide certified rugged performance; impact: smoother regulatory approvals and safer operation; application: industrial protection & control programs requiring certified equipment in hazardous zones.
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FAQs
The FLB142 WT90 3 is designed for 480 Vac three-phase systems in hazardous locations. It suits control panels, motor feeders, and protection schemes in chemical plants, refineries, and oil & gas facilities, meeting NEC/CEC requirements and Class I/II/III ratings to ensure safe, compliant performance in demanding environments.
Yes. The device uses a 1-1/2" trade size and a threaded enclosure cover, enabling straightforward integration into standard enclosures and reducing custom fabrication during panel assembly and retrofits.
It carries NEC/CEC compliance with hazardous area ratings including Class I, Division 1 & 2; Class II, Division 1 & 2; and Class III, plus NEMA ratings 3, 4, 7, 9, supporting regulatory approvals and safe operation in demanding industrial environments.
The non-interchangeable trip prevents accidental replacement with a different trip setting, ensuring consistent protection and reducing misconfiguration risks during maintenance or part stocking, which translates to improved reliability and safety across the facility.
The rugged copper-free aluminum enclosure, threaded cover, and robust thermal-magnetic trip deliver long service life with easier handling, lower maintenance costs, and reduced downtime, contributing to a faster return on investment in sites where safety and reliability drive operational value.