{"product_id":"siemens-bq3b040hl-circuit-breaker","title":"Siemens | BQ3B040HL | Circuit Breaker | 40A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens BQ3B040HL Circuit Breaker is a 40-amp, 3-pole device rated for 240 volts, engineered to protect and manage heavier load circuits within commercial and industrial panels. Built for maintenance, retrofit, and replacement projects, it delivers dependable protection while keeping your Siemens system aligned with proven performance. Referencing the part number BQ3B040HL ensures precise compatibility with your existing equipment.\u003c\/p\u003e \u003ch2\u003eWhy this Siemens BQ3B040HL stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eExact part reference:\u003c\/b\u003e The BQ3B040HL designation guarantees the correct form factor and trip characteristics for Siemens panels, reducing guesswork during replacements or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eThree-pole design:\u003c\/b\u003e Provides comprehensive protection for multi-phase circuits, enabling balanced distribution and streamlined integration in 3-phase systems.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e40A protection:\u003c\/b\u003e Delivers reliable overcurrent interruption for medium-to-heavy loads, helping safeguard wiring and connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003e240V compatibility:\u003c\/b\u003e Ideal for applications operating at 240V, a common standard in many commercial installations.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMaintenance-friendly:\u003c\/b\u003e Designed to align with existing Siemens configurations, making retrofit or replacement straightforward and efficient.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 40A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 240V\u003c\/li\u003e \u003cli\u003ePart number: BQ3B040HL\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects where a 3-pole, 240V protection device is required in Siemens panels.\u003c\/li\u003e \u003cli\u003eReplacement for aging breakers to restore reliable overcurrent protection without panel changes.\u003c\/li\u003e \u003cli\u003eUpgrading distributions to support additional three-phase loads in commercial or light industrial settings.\u003c\/li\u003e \u003cli\u003eMaintenance workflows that demand exact Siemens components for consistent performance and labeling.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation guidance and compatibility notes\u003c\/h2\u003e\n\u003cp\u003eBefore placing an order, verify fit and ratings for your specific panel. The BQ3B040HL is the clearest reference for compatibility with Siemens equipment, ensuring correct mounting, trip characteristics, and electrical alignment. If your panel documentation calls out a 3-pole, 40A, 240V breaker, this unit is designed to meet those specifications.\u003c\/p\u003e \u003cp\u003ePractical impact: using the right BQ3B040HL breaker helps minimize downtime by delivering dependable overcurrent protection, preserving wiring insulation and connected devices, and maintaining stable power distribution across your facility. For motor loads or multi-stage circuits, a properly rated 3-pole breaker supports safer operation and easier maintenance over the long term.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427494482082,"sku":"BQ3B040HL","price":458.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-bq3b040hl-circuit-breaker-40a-3-pole-240v-516.webp?v=1789731017","url":"https:\/\/www.ampstate.com\/products\/siemens-bq3b040hl-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}