{"product_id":"ge-thhqb1140-40a-120v-1-pole-bolt-on-circuit-breaker","title":"GE THHQB1140 - 40 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eGE THHQB1140\u003c\/strong\u003e is a 40A, 120V, 1-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for durability and precise protection, it’s a practical choice for both professional installations and DIY electrical projects that rely on GE-quality components.\u003c\/p\u003e \u003ch3\u003eKey benefits that matter in the real world\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical contact in panels subjected to movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by responding to both sustained overloads (thermal) and sudden short-circuit surges (magnetic), reducing nuisance trips and protecting wiring and connected loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 40A, 120V configuration\u003c\/strong\u003e is ideal for protecting individual 120V circuits that draw higher current, such as heavy-outlet circuits, dedicated equipment, or high-demand lighting and receptacle runs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel compatibility\u003c\/strong\u003e is designed to pair with matching OEM GE load centers and panelboards, simplifying replacement and ensuring cohesive system performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhere and how you’ll use it\u003c\/h3\u003e\n\u003cp\u003eDesigned for residential, commercial, and light industrial applications, the THHQB1140 is well suited for protecting single 120V branch circuits within GE panelboards and load centers. Use it to safeguard circuits that require a robust 40-amp protection device without stepping up to multi-pole configurations.\u003c\/p\u003e \u003ch3\u003eTechnical essentials at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: GE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: THHQB1140\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 120 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style\u003c\/strong\u003e: Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this bolt-on design stands apart\u003c\/h3\u003e\n\u003cp\u003eIn panels where reliability and a secure connection matter most, bolt-on breakers like the THHQB1140 offer a mechanically robust alternative to plug-in options. The bolt-on approach minimizes movement-induced loosening over time, helping maintain consistent electrical performance in environments with vibration or frequent door cycles, and during routine panel servicing.\u003c\/p\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical professionals installing or upgrading GE panelboards and load centers\u003c\/li\u003e \u003cli\u003eProperty managers and technicians maintaining residential or small commercial electrical systems\u003c\/li\u003e \u003cli\u003eDIY enthusiasts replacing damaged or outdated single-pole protection on 120V circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance and insights\u003c\/h3\u003e\n\u003cp\u003eThink of the THHQB1140 as a focused solution for protecting a single high-demand 120V circuit within a GE-based electrical distribution system. Its thermal-magnetic trip mechanism helps prevent nuisance trips while delivering fast magnetic reaction to short circuits, safeguarding conductors and connected devices. For best results, confirm panel compatibility with GE’s THHQB series and follow standard electrical safety practices during installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349703676066,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/general_electric_breaker_and_panel_4b29a058-7aa8-4a0c-ba4e-c43df41cc97c.png?v=1764154409","url":"https:\/\/www.ampstate.com\/products\/ge-thhqb1140-40a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}