{"product_id":"siemens-qj3b150a02-circuit-breaker","title":"Siemens | QJ3B150A02 | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens QJ3B150A02 Circuit Breaker, a rugged protection device crafted for demanding 3-phase 240V systems. Built to support maintenance, retrofit, and replacement tasks, this 150A, 3-pole unit delivers dependable overcurrent protection while matching the exacting specifications of Siemens panels.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this model stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eSiemens reliability engineered for industrial and commercial panels that demand precise protection aligned with the QJ3B series.\u003c\/li\u003e \u003cli\u003eBolt-On mounting provides a secure, vibration-resistant connection, reducing the risk of loosened hardware in challenging environments.\u003c\/li\u003e \u003cli\u003eIdeal for retrofit or replacement projects where a 150A, 3-pole, 240V specification is required to maintain system performance and protection standards.\u003c\/li\u003e \u003cli\u003eCompatibility guidance: confirm fit and ratings before ordering—the part number QJ3B150A02 is the best reference to ensure your panel match.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eUse cases and scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading the main disconnect in a 3-phase, 240V distribution network within commercial facilities.\u003c\/li\u003e \u003cli\u003eRetrofit of aging panels that require precise 150A, 3-pole protection to continue safe operation.\u003c\/li\u003e \u003cli\u003eMaintenance replacements where exact electrical characteristics must be preserved to avoid system discrepancies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen selecting a replacement, verify that your panel, bus arrangement, and trip characteristics align with the QJ3B150A02 model to ensure a seamless installation and uninterrupted electrical protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427418788002,"sku":"QJ3B150A02","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qj3b150a02-circuit-breaker-150a-3-pole-240v-bolt-259.webp?v=1789720501","url":"https:\/\/www.ampstate.com\/products\/siemens-qj3b150a02-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}