Thomas & Betts TB290 Molded Case Circuit Breaker 90 Amp 2 Pole Breaker

Description:

The Thomas & Betts TB290 Molded Case Circuit Breaker is used to provide thermal-magnetic overcurrent and short-circuit protection for 120/240 VAC single-phase electrical distribution systems. Commonly installed in Thomas & Betts load centers, commercial buildings, industrial facilities, and electrical distribution panels requiring a 90 Amp two-pole branch circuit breaker. Maintenance electricians, contractors, and facility managers use this breaker for new installations, preventive maintenance, panel upgrades, and replacement of existing TB Series circuit breakers.

Applications:

The Thomas & Betts TB290 is a TB Series plug-in molded case circuit breaker designed to protect branch circuits and feeders from overloads and short circuits. It incorporates a thermal-magnetic trip mechanism with fixed long-time and instantaneous protection, ensuring dependable operation in residential, commercial, and light industrial electrical systems. The breaker is suitable for protecting HVAC equipment, motors, subpanels, large appliances, and feeder circuits in compatible Thomas & Betts load centers and panelboards.

Technical Specifications:

• Brand: Thomas & Betts (ABB)
• Part Number: TB290
• Product Type: Molded Case Circuit Breaker / Miniature Circuit Breaker (MCB)
• Series: TB Series
• Number of Poles: 2 Pole
• Current Rating: 90 Amp
• Rated Voltage: 120/240 VAC
• Phase: Single Phase
• Interrupting Capacity: 10 kA @ 240 VAC
• Trip Type: Thermal Magnetic
• Trip Functions: Long-Time and Instantaneous (LI)
• Mounting Type: Plug-In
• Connection Type: Plug-In
• Frame Type: Molded Case
• Trip Unit: Non-Interchangeable
• Application: Branch Circuit and Feeder Protection
• Compatible Equipment: Thomas & Betts TB Series Load Centers and Panelboards
• Standards: UL Listed, CSA Certified (application dependent)

Common Replacements:

• Thomas & Betts TB280
• Thomas & Betts TB2100
• Thomas & Betts TB290H