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GE THQB1140ST1 - Miniature Circuit Breaker 40A 1-Pole

United Fuses
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The THQB1140ST1 is a miniature circuit breaker designed for overcurrent protection in electrical distribution systems. It is rated for 40 amps at 120/240 volts AC, providing reliable interruption of fault currents. This single-pole breaker features a compact construction with a weight of 5.19 lb, suitable for panelboard installation. It complies with UL 489 standards for safety and performance. Typical applications include protecting branch circuits in commercial and industrial power panels.

Key Features & Specifications
  • Type: Miniature Circuit Breaker
  • Voltage Rating: 120/240 V AC
  • Current Rating: 40 A
  • Weight: 5.19 lb
  • Standards: UL 489
  • Applications: Branch circuit protection in commercial and industrial power panels
  • Poles: 1
  • Breaker Type: THQB
  • Frame Size: 1-inch per pole
  • Trip Type: Thermal-magnetic
  • Circuit Breaker Mounting Style: Plug-in
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase: 1
  • AIC Rating: 10 kAIC at 120/240 V AC
  • Installation Type: Panelboard mount
  • Item QTY: 1
  • Certification: UL Listed


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