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GMA-125 - Molded Case Circuit Breaker 125A 240VAC

United Fuses
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GMA-125 is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 125 amps at 240 volts AC, with a 10kAIC interrupting capacity, and features a thermal-magnetic trip mechanism for reliable short-circuit and overload protection. The unit weighs 5.19 lb and is constructed with a compact frame for panelboard or switchboard installation. It complies with UL 489 and CSA standards, ensuring safe operation in commercial and light industrial environments. Typical applications include branch circuit protection in lighting panels, motor control centers, and distribution boards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip
  • Voltage Rating: 240 V AC
  • Current Rating: 125 A
  • Dimensions: Compact frame size
  • Standards: UL 489, CSA
  • Applications: Branch circuit protection, lighting panels, motor control centers, distribution boards
  • Weight: 5.19 lb
  • Amperage: 125 A
  • AIC rating: 10 kAIC
  • Poles: Not specified
  • Protection: Overcurrent and short-circuit
  • Trip Type: Thermal-magnetic
  • Breaker Type: Molded case
  • Mounting: Panelboard or switchboard
  • Frequency Rating: 50/60 Hz
  • Circuit Breaker Mounting Style: Fixed or plug-in (assumed)
  • Terminal Connection: Line and load lugs
  • Phase Connection: Single-phase or three-phase (assumed)
  • Installation Type: Industrial/commercial
  • Operating Temperature Maximum Celsius: 40°C (typical)


Product Identification
  • UPC: Not available
  • GTIN: Not available