{"product_id":"siemens-e42b050-circuit-breaker","title":"Siemens | E42B050 | Circuit Breaker | 2-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens E42B050 2-Pole Circuit Breaker delivers dependable, two-pole protection for maintenance, retrofit, and replacement projects where exact specifications matter. This 2-Pole model safeguards two hot conductors, making it a solid choice for 240V circuit protection in compatible Siemens panels.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole — provides simultaneous protection for two lines, suitable for 240V circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel reference:\u003c\/strong\u003e E42B050 — use this part number as the primary reference to verify compatibility with your panel. Confirm fit and ratings before ordering.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest-use scenarios:\u003c\/strong\u003e Ideal for maintenance, retrofit, and replacement needs where matching specs are required, ensuring your electrical system remains protected and compliant.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens-native compatibility:\u003c\/strong\u003e Designed to integrate with Siemens panel architectures and protective-tripping behavior, helping maintain consistent performance with existing installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in practice\u003c\/p\u003e \u003cp\u003eIn real-world applications, a two-pole breaker like the E42B050 interrupts both legs of a circuit on fault, providing reliable isolation of the affected 240V circuit to protect wiring, devices, and occupants. It’s a practical choice when upgrading older panels, refreshing protective devices during a retrofit, or simply replacing a failed breaker in a compatible Siemens system.\u003c\/p\u003e \u003cp\u003eKey compatibility and installation notes\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFit and ratings:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInstallation approach:\u003c\/strong\u003e Follow standard electrical safety practices, shut off main power, and install only in panels designed to accept Siemens E-series breakers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUse-case focus:\u003c\/strong\u003e Suitable for residential and light commercial electrical panels that rely on Siemens protection components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho is this for? Homeowners, electricians, and facility managers working on panel maintenance, retrofits, or replacements where a precise Siemens two-pole solution is required. If your project calls for accurate part matching, reliable two-pole protection, and seamless integration with existing Siemens tooling, the E42B050 is a straightforward, dependable choice.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426778730658,"sku":"E42B050","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/siemens-e42b050-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}