{"product_id":"siemens-heb3b045b-circuit-breaker","title":"Siemens | HEB3B045B | Circuit Breaker | 45A | 3-Pole | 600V | 65kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for demanding industrial environments, the Siemens HEB3B045B Circuit Breaker delivers reliable three‑phase protection for power distribution and motor networks. With a 45A rating and three poles, it neatly switches off all live conductors in the event of a fault, keeping equipment and personnel safer while minimizing downtime.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting rating:\u003c\/strong\u003e 65kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this configuration matters for your system\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3‑pole protection\u003c\/strong\u003e ensures simultaneous disconnection of all phases in 3‑phase circuits, reducing arc exposure and improving fault isolation—a must for motor feeders and heavy equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V compatibility\u003c\/strong\u003e suits a wide range of industrial power architectures, from panel boards to MCCs, delivering dependable performance where voltage demands are high.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e65kA interrupting capacity\u003c\/strong\u003e provides strong short‑circuit protection, helping to safeguard wired infrastructure and downstream devices during fault events.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt‑On reliability\u003c\/strong\u003e delivers a sturdy, vibration‑resistant installation in compatible Siemens panels, making field retrofits and maintenance replacements straightforward and secure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho should consider the HEB3B045B\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilities conducting panel retrofits or upgrades where a matching Siemens part is preferred for compatibility and serviceability.\u003c\/li\u003e \u003cli\u003eMaintenance teams stocking a reliable spare for aging or legacy Siemens assemblies to minimize downtime during outages.\u003c\/li\u003e \u003cli\u003eDesign engineers specifying robust overcurrent protection for motor control centers, process lines, or critical power feeds in manufacturing, mining, or large commercial operations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for purchase and installation\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eVerification workflow:\u003c\/strong\u003e always confirm fit and ratings before ordering. The \u003cem\u003eHEB3B045B\u003c\/em\u003e part number is the most reliable reference for compatibility.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInstallation note:\u003c\/strong\u003e follow panel manufacturer instructions and electrical codes for bolt‑on mounting, terminations, and clearances to ensure safe fault clearance and heat dissipation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUse case alignment:\u003c\/strong\u003e pair this breaker with circuits requiring solid, immediate isolation of all three phases, such as high‑inrush motor feeders and controlled power distribution legs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKeep the Siemens HEB3B045B on hand for precise, dependable protection in your 3‑phase systems. Its combination of 45A capacity, 600V tolerance, 65kA fault interrupting capability, and secure bolt‑on mounting helps you maintain continuity, safety, and compliance across retrofit projects, replacements, and ongoing maintenance. Add it to your order today to ensure your critical equipment is safeguarded with a trusted Siemens solution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46424503320738,"sku":"HEB3B045B","price":4460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-heb3b045b-circuit-breaker-45a-3-pole-600v-65ka-bolt-719.webp?v=1789373564","url":"https:\/\/www.ampstate.com\/products\/siemens-heb3b045b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}