{"product_id":"siemens-hqj3b150ha01-circuit-breaker","title":"Siemens | HQJ3B150HA01 | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eWhen you’re upgrading or maintaining a three-phase electrical system, the Siemens HQJ3B150HA01 Circuit Breaker stands out as a precise, reliable solution. This 150A, 3-pole, 240V bolt-on breaker is engineered for demanding applications where exact specs and secure mounting matter—ideal for maintenance, retrofit, and replacement projects that require a like-for-like Siemens component.\u003c\/p\u003e \u003ch3\u003eKey specifications you can rely on\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole (three-phase protection)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting type:\u003c\/strong\u003e Bolt-On for a solid, vibration-resistant connection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this bolt-on breaker unique\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongsecure mechanical integrity:\u003e The bolt-on design provides a robust connection to panel buses, reducing movement and wear over time compared with lighter-duty plug-in alternatives.\u003c\/strongsecure\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact Siemens compatibility:\u003c\/strong\u003e Part of the HQJ family, the HQJ3B150HA01 is crafted to meet Siemens standardization, ensuring predictable fit and performance when matching with compatible panels and accessories.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current protection for demanding loads:\u003c\/strong\u003e With a 150A rating, this breaker serves heavy feeders and motors in commercial or industrial electrical systems, helping prevent damage from overcurrent events.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase coverage, one device:\u003c\/strong\u003e A 3-Pole configuration simplifies wiring for balanced three-phase circuits, delivering streamlined protection and easier field service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical professionals performing panel retrofits or replacements in Siemens‑scripted environments.\u003c\/li\u003e \u003cli\u003eFacilities upgrading to higher-capacity protection for motors, compressors, or large heating and processing equipment.\u003c\/li\u003e \u003cli\u003eMaintenance teams seeking a dependable, long-life breaker that mirrors existing Siemens configurations to minimize installation risk.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance and use cases\u003c\/h3\u003e\n\u003cp\u003eUse the HQJ3B150HA01 when you need a direct, drop-in replacement for compatible Siemens panels or when upgrading a panel to a 150A three-phase protection scheme. This is the right choice for retrofit projects that require a bolt-on mounting method to ensure a secure physical and electrical connection, especially in environments with vibration or frequent maintenance cycles.\u003c\/p\u003e \u003ch3\u003eImportant compatibility notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your panel’s OEM documentation. The part number HQJ3B150HA01 is your best cross-reference for compatibility, ensuring that the breaker aligns with your panel design and safety standards.\u003c\/p\u003e \u003cp\u003eChoose the Siemens HQJ3B150HA01 Circuit Breaker for dependable, industry-grade protection that aligns with your 240V three-phase systems. It’s a precise, durable solution for professional installations where exact specs and secure mounting translate to real-world reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427069415586,"sku":"HQJ3B150HA01","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hqj3b150ha01-circuit-breaker-150a-3-pole-240v-bolt-404.webp?v=1789667332","url":"https:\/\/www.ampstate.com\/products\/siemens-hqj3b150ha01-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}