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Miami Breaker REF3B125 - 125A 3-Pole 600V Thermal Magnetic

Miami Breaker
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Miami Breaker REF3B125 Circuit Breaker - 125A 3-Pole 600V Thermal Magnetic The Miami Breaker REF3B125 is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This unit is rated for 125A continuous current at 600VAC, with an interrupting capacity of 14kA at 480VAC, and employs thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The breaker features a bolt-on connection type, weighs 8 lb, and is constructed as part of the REF Series with a compact molded case housing. It complies with applicable UL and NEMA standards for industrial circuit protection. Typical applications include branch circuit protection in panelboards, switchboards, and motor control centers within commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, REF Series, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic, LI (Long-Time and Instantaneous)
  • AIC Rating: 14kA@480V
  • Weight: 8 lb
  • Functions: LI - Long-Time and Instantaneous
  • Item Subcategory: Molded Case
  • Family: REF Series


Product Identification
  • Manufacturer: Miami Breaker
  • Model: REF3B125