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General Electric THQB1140ST1 - 40A 1-Pole Bolt-On Breaker (120/240V)

United Fuses
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General Electric THQB1140ST1 is a 40 Amp, 1 Pole, 120/240 Volt bolt-on miniature circuit breaker designed for overcurrent protection in residential and commercial electrical systems. This thermal-magnetic breaker delivers a 10,000 Amp interrupting rating at 120/240 VAC and features a fixed long-time and instantaneous trip unit (LI) for reliable fault response. The compact Q-Line series unit has a 1-inch wide frame, supports wire ranges of 14-8 kcmil copper/aluminum, and weighs 5.19 lb. It is UL listed and CSA approved for safety and compliance with industry standards. Typical applications include branch circuit protection in load centers and panelboards.

Key Features & Specifications
  • Amperage: 40 A
  • Voltage: 120/240 VAC
  • Poles: 1
  • Mounting Type: Bolt-On
  • Interrupting Rating: 10 kA at 120/240 VAC
  • Trip Unit: Thermal-Magnetic (LI)
  • Series/Frame: Q-Line
  • Wire Range: 14-8 kcmil Cu/Al
  • Certifications: UL Listed, CSA Approved
  • Compact 1-inch width per pole
  • Suitable for reverse feed
  • Weight: 5.19 lb


UPC: 783164012200