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TMQB21125 - Molded Case Breaker 125A 2-Pole

United Fuses
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The TMQB21125 is a 2-pole molded case circuit breaker from the TMQB family, designed for thermal magnetic protection with long time and instantaneous trip functions. It is rated for 125A at 120/240VAC with a 42kAIC interrupting capacity at 240V, utilizing a bolt-on connection for single-phase applications. The unit weighs 5.19 lb and features a compact molded case construction for reliable overcurrent protection. This breaker complies with industry standards for industrial and commercial electrical distribution systems. Typical applications include branch circuit protection in panelboards and switchboards requiring high fault current handling.

Key Features & Specifications
  • Type: TMQB Molded Case Circuit Breaker
  • Voltage Rating: 120/240VAC
  • Current Rating: 125A
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 42kAIC at 240V
  • Phase: 1
  • Functions: Long Time and Instantaneous Trip
  • Weight: 5.19 lb
  • Item Subcategory: Molded Case
  • Family: TMQB