40 Amp 2-Pole Circuit Breaker, 1-Inch Plug-in Molded Case Breaker, Replaces Q240, THQL2140

A closer look at 40 Amp 2-Pole Circuit Breaker, 1-Inch Plug-in Molded Case Br

【Quick Plug-In OEM Replacement】 Each pole features a 1-inch slim plug-in design for tool-free installation, cutting working time by 50%. Directly replaces Q240, THQL2140, BR240, HOM240 circuit breakers. The narrow 1-inch width per pole saves panel space to hold more devices without upgrading your load center. 【Dual Thermal-Magnetic Circuit Protection】 40 Amp 120/240V 2-pole breaker optimized for heavy-load home circuits such as dryers, air conditioners and large appliances. Thermal protection handles slow overload heating, while magnetic trip instantly cuts short-circuit surge to fully protect household wiring.

【10kA High Short-Circuit Breaking Capacity】 10kA interrupt rating exceeds basic household safety standards. Stable under 1.05In load for 2 hours without tripping, and disconnects reliably within 2 hours at 1.35In. Instantly isolates fault current to prevent wire melting and electrical fires. 【UL489 Certified High-Temp Resistance】 UL489 listed to comply with North American electrical codes. Steady performance up to 104°F (40°C), perfect for hot attics, garages and outdoor boxes. Fireproof anti-oxidation shell resists aging for long service life. With 3.5 stars on Amazon, it's earning solid feedback from real buyers — check recent reviews to see if it fits your needs.