Thomas & Betts TB290 Molded Case Circuit Breaker

The Thomas & Betts (ABB) TB290, Part Number TB290, is a 2-pole, 90 Amp molded case circuit breaker designed to deliver thermal-magnetic overcurrent protection for 120/240 VAC single-phase distribution systems, with robust compatibility for use in TB Series equipment. It is a plug-in, molded-case frame device with a fixed long-time and instantaneous trip mechanism (non-interchangeable trip unit) and an interrupting capacity of 10 kA at 240 VAC, optimized for quick installation and reliable tripping in TB Series load centers and panelboards. Common applications include protection of branch circuits and feeders in commercial and light industrial environments, such as HVAC equipment, motors, subpanels, large appliances, and other feeders in compatible TB load centers, ensuring dependable protection against overloads and short circuits. This part carries UL Listed and CSA Certified listings where applicable, reflecting adherence to recognized safety standards for electrical distribution components in residential, commercial, and industrial settings, and aligning with Thomas & Betts TB Series ecosystem requirements.