Eaton FLB264 WT125 2 Circuit Breaker - Hazardous Locations
Part Number: FLB264 WT125 2
Quick Summary
The Eaton FLB264 WT125 2 circuit breaker protects hazardous-location panels in industrial plants. Maintenance downtime and compliance costs rise when equipment lacks robust protection against arcing, overheating, and hazardous-location conditions. This unit meets NEC/CEC standards and UL certifications for hazardous locations, with Class I, Division 1 & 2, Class II and III ratings and NEMA 3, 4, 7, 9 compatibility, ensuring safe operation in challenging environments. By leveraging a copper-free aluminum enclosure, threaded cover construction, and a non-interchangeable trip, it delivers reliable protection with predictable trip behavior. For engineers and procurement teams, the integration with Crouse-Hinds FLB series reduces spare parts variety while improving installation effectiveness and regulatory compliance.
Product Information
Extended Description
FLB264 WT125 2 Eaton: Eaton Crouse-Hinds series FLB circuit breaker, 125A, JDB frame type, Thermal magnetic, Threaded cover construction, Copper-free aluminum, Cutler-Hammer breaker, Two-pole, Non-interchangeable trip, 2-1/2", 600 Vac/250 Vdc
Product Name
Eaton Crouse-Hinds series FLB circuit breaker
Catalog Number
FLB264 WT125 2
UPC
782274008271
Product Length/Depth
16.25 in
Product Height
22.5 in
Product Width
15.5 in
Product Weight
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
125 A
Circuit breaker type
Thermal magnetic
Voltage rating
600 Vac/250 Vdc
Number of poles
Two-pole
Trade size
2-1/2"
Manufacturer
Cutler-Hammer
Circuit breaker frame type
JDB
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 UL certification
FLB Explosionproof Circuit Breakers UL certification
IF 1016 - FLB Series Circuit Breakers
Eaton Specification Sheet - FLB264 WT125 2
Feature: Thermal magnetic two-pole design supporting 125 A with a 600 Vac/250 Vdc rating. Business Impact: Delivers precise overload protection and fast fault interruption, reducing energy waste and equipment damage. Application: Ideal for motor control centers and distribution panels in hazardous locations where stable trip performance matters. Feature: JDB frame type with threaded enclosure cover and copper-free aluminum construction. Business Impact: Enhances ruggedness in corrosive environments while simplifying field installation and seal integrity. Application: Industrial cabinets in chemical plants and refineries where enclosure durability is critical. Feature: Two-pole configuration with a 2-1/2" trade size and 16.25 in depth, 22.5 in height, 15.5 in width footprint. Business Impact: Provides space-efficient protection for compact switchgear assemblies and modular panels, enabling easier upgrades. Application: Retrofit projects and new builds in compact industrial spaces. Feature: Special features include non-interchangeable trip and threaded cover construction. Business Impact: Reduces risk of improper retrofits and misapplication, supporting compliant maintenance programs. Application: Safer servicing in hazardous locations with consistent replacement intervals. Feature: Certifications and standards include NEC/CEC compliance, UL hazard-location rating, and NEMA 3, 4, 7, 9. Business Impact: Improves regulatory alignment and market access while enabling customer audits. Application: Design validation for global facilities where multi-standards certification is required.
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FAQs
The FLB264 WT125 2 is designed for integration in explosion-protected panels using the JDB frame with threaded cover. Verify enclosure rating, connect to properly rated conductors, and secure grounding per NEC/CEC requirements. The two-pole, 2-1/2" trade size fits standard hazardous-location enclosures, and UL-certified instructions provide step-by-step wiring and torque specifications to ensure safe field installation.
This breaker is rated at 125 A with a thermal magnetic trip mechanism and supports 600 Vac / 250 Vdc. It is a two-pole device with 2-1/2" trade size, designed for reliable instantaneous and thermal overcurrent protection. Its non-interchangeable trip helps maintain consistent protection without cross-compatibility concerns in critical control circuits.
Yes. The FLB264 WT125 2 is intended for hazardous/classified locations and supports NEC/CEC compliance with Class I, Division 1 & 2 ratings, plus Class II and III as applicable. Its copper-free aluminum enclosure and threaded cover provide durability in corrosive environments, making it well-suited for chemical plants, refineries, and other demanding facilities.
The unit carries NEC/CEC standards alignment, UL hazard-location certification, and NEMA ratings 3, 4, 7, 9. Its area classification is Hazardous/Classified Locations, and it is tested for domestic and Canadian use, streamlining audits, approvals, and cross-border projects.
Non-interchangeable trip reduces misapplication risk and simplifies spares management, lowering maintenance complexity. The threaded cover and corrosion-resistant aluminum enclosure enable quicker field servicing and longer service intervals, which translates to lower downtime and improved system availability, contributing to a favorable return on investment for hazardous-location installations.