{"product_id":"siemens-qe240h","title":"Siemens QE240H 40A 2-Pole 240 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens QE240H 40A 2-Pole 240 V Circuit Breaker — a dependable protective device built to protect 240-volt circuits in commercial and light-industrial panels. The QE240H is designed for consistent, predictable trips, helping minimize downtime and protect critical equipment from overloads and faults.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e QE240H\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCurrent rating:\u003c\/b\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage rating:\u003c\/b\u003e 240 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 2-pole, 240 V breaker is the right choice\u003c\/h3\u003e\n\u003cp\u003eFor 240-volt circuits, a two-pole design ensures both conductors are simultaneously disconnected, enhancing safety and improving protection for feeders, motors, and other high-voltage loads. The QE240H is compact enough to fit a range of panelConfigurations while delivering robust protection against short circuits and sustained overloads.\u003c\/p\u003e \u003ch3\u003eKey benefits and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eReliable protection for 240 V circuits:\u003c\/strong\u003e Ideal for branch circuits feeding motors, heating elements, and equipment in commercial spaces and light-industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient panel maintenance:\u003c\/strong\u003e Quick replacement in existing Siemens-compatible panels helps minimize downtime during upgrades or service calls.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProtection that scales with your system:\u003c\/strong\u003e Pair with protection schemes and metering setups that rely on stable, dependable circuit interruption—potential transformer environments are supported by its design and rating.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear, durable design for field use:\u003c\/strong\u003e Built for daily operation in demanding environments, with straightforward wiring and disconnection when needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets QE240H apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact match for Siemens panels:\u003c\/strong\u003e Seamless compatibility with Siemens protection architecture, reducing installation guesswork.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFocused 40 A protection:\u003c\/strong\u003e Delivers precise, reliable interruption for circuits within the 40-amp range, helping to prevent damage to connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole construction:\u003c\/strong\u003e Ensures simultaneous disconnection of both supply lines, improving safety and fault isolation for 240 V loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, field-ready design:\u003c\/strong\u003e Built to endure consistent operation in industrial and commercial environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical installation and care tips\u003c\/h3\u003e\n\u003cp\u003eBefore installation, confirm that the panel enclosure and bus arrangement are compatible with the QE240H and that the 240 V circuit conditions match the breaker’s rating. Follow standard safety practices, secure all connections per manufacturer guidelines, and reference Siemens installation instructions for torque recommendations and terminal compatibility. This approach helps maximize reliability and prolong service life in daily operations.\u003c\/p\u003e \u003cp\u003eWhether you’re updating an old panel, wiring a new 240 V feeder, or configuring a protection scheme in a demanding environment, the Siemens QE240H 40A 2-Pole 240 V Circuit Breaker delivers clear, dependable protection with a focus on real-world performance and ease of use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423727210658,"sku":"QE240H","price":1848.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/siemens-qe240h","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}