Eaton FLB221 TT40 2 circuit breaker - Explosionproof

The thermal-magnetic trip mechanism provides precise overcurrent protection with a balanced response to both overloads and short circuits. This translates to fewer nuisance trips and lower maintenance costs for critical motor and control circuits. In hazardous locations, reliable coordination minimizes process interruptions and protects personnel. The 40 A rating and two-pole design deliver coordinated protection for feeders and distribution panels in compact spaces. The 1" trade size and TE B frame type simplify panel integration and spare-part compatibility, reducing installation time and lifecycle costs. Enclosure construction uses copper-free aluminum with threaded cover for rugged, corrosion-resistant performance in harsh environments. The threaded cover enables a secure, sealed installation and straightforward field service, even in dusty or damp locations. Certifications and standards—NEC/CEC compliance, hazard locations area classifications, NEC hazardous ratings, and NEMA ratings 3, 4, 7, 9—provide design confidence and formal regulatory alignment. The non-interchangeable trip feature simplifies maintenance planning and reduces the risk of incorrect device interchange. From a practical perspective, the FLB221 TT40 2 integrates easily with Eaton Crouse-Hinds catalogs and UL-certified documentation, and it’s supported by installation instructions and datasheets for fast field deployment.