{"product_id":"square-d-qga321506-circuit-breaker","title":"Square D | QGA321506 | Circuit Breaker | 150A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eWhen you need reliable protection for a 240V system, the Square D QGA321506 circuit breaker delivers purpose with precise compatibility. This 150A, 3-pole device is crafted for maintenance, retrofit, and replacement projects where exact specs matter, ensuring you stay within your panel’s original design intentions.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 150A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 240V\u003c\/li\u003e \u003cli\u003ePart number: QGA321506\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Square D breaker is the right choice\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOEM-aligned compatibility: Designed to align with Square D panels and distribution equipment, helping maintain proper fit, mounting, and electrical ratings.\u003c\/li\u003e \u003cli\u003eIdeal for maintenance, retrofit, and replacement: A dependable solution when you’re updating aging panels or restoring circuit protection after a fault.\u003c\/li\u003e \u003cli\u003eBest reference for compatibility: The part number QGA321506 is your most reliable guide to ensuring the breaker will match your system’s requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to verify fit and install\u003c\/h3\u003e\n\u003cp\u003eNotes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility. Use these quick checks to validate suitability:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMatch amperage (150A), number of poles (3), and voltage (240V) to your panel’s specifications.\u003c\/li\u003e \u003cli\u003eCross-check the panel model or catalog to confirm it accepts QGA-series breakers.\u003c\/li\u003e \u003cli\u003eFor safety and optimal performance, have a qualified electrical professional handle installation and ensure the main power is off during replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider this breaker\u003c\/h3\u003e\n\u003cp\u003eIdeal for electricians, facilities managers, and homeowners maintaining Square D electrical systems who need a reliable 150A, 3-pole, 240V circuit protection solution. Use it for controlled upgrades in service panels, maintenance of existing circuits, or precise replacements where OEM compatibility is critical.\u003c\/p\u003e \u003ch3\u003ePractical usage and guidance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eKeep a compatible spare on hand for planned maintenance to minimize downtime.\u003c\/li\u003e \u003cli\u003eDocument the part number (QGA321506) in your panel records to simplify future servicing and replacements.\u003c\/li\u003e \u003cli\u003eWhen replacing, verify labeling on the panel cover matches the panel’s listed breaker types to avoid compatibility gaps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426471268514,"sku":"QGA321506","price":9402.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-qga321506-circuit-breaker-150a-3-pole-240v-182.webp?v=1789583966","url":"https:\/\/www.ampstate.com\/products\/square-d-qga321506-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}