{"product_id":"siemens-he3b040l-circuit-breaker","title":"Siemens | HE3B040L | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HE3B040L is a 3-pole circuit breaker designed to provide reliable overcurrent protection in maintenance, retrofit, and replacement scenarios. With its precise 3-pole design, it supports three-phase distribution in compatible Siemens panel configurations. The part number HE3B040L is the clearest reference for compatibility, ensuring you’re ordering the exact unit your system needs.\u003c\/p\u003e \u003ch2\u003eWhy choose the Siemens HE3B040L 3-Pole Circuit Breaker\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eThree-pole configuration delivers synchronized protection across all three phases, helping protect equipment and wiring in three-phase electrical systems.\u003c\/li\u003e \u003cli\u003eBuilt to meet Siemens engineering standards, delivering consistent tripping performance when overcurrent occurs.\u003c\/li\u003e \u003cli\u003eEngineered for straightforward maintenance and retrofit projects, offering a reliable replacement option when a 3-pole unit is required.\u003c\/li\u003e \u003cli\u003eCompact form factor and standard mounting compatible with a range of Siemens panel lines that specify HE3B040L.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eMaintenance: replace worn or failed 3-pole breakers to restore full three-phase protection without downtime.\u003c\/li\u003e \u003cli\u003eRetrofit: upgrade older panels that require a three-pole Siemens breaker with the HE3B040L model.\u003c\/li\u003e \u003cli\u003eReplacement: keep as a ready-to-use spare for service calls or facility upgrades where a 3-pole unit is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eImportant compatibility note\u003c\/h3\u003e \u003cp\u003eNotes: Confirm fit and ratings before ordering. The part number HE3B040L is the best reference for compatibility and ensuring your panel and trip settings align with this unit.\u003c\/p\u003e \u003cp\u003eWhen you’re configuring a three-phase electrical system, choosing a Siemens circuit breaker with an exact part number helps minimize mismatch risk and reduces installation headaches. The HE3B040L 3-Pole Circuit Breaker is a dependable choice for those who value consistent protection, quick serviceability, and alignment with Siemens' panel ecosystems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427518697634,"sku":"HE3B040L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-he3b040l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}