{"product_id":"mqj3150-circuit-breaker","title":"MQJ3150 | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eMQJ3150\u003c\/strong\u003e is a rugged, industrial‑grade circuit breaker designed to deliver reliable protection for demanding electrical environments. With a 150A rating, a 3‑pole configuration, and 240V operating voltage, it safeguards three‑phase circuits typically found in manufacturing lines, heavy machinery, and commercial facilities. The bolt‑on mounting provides a secure, vibration‑resistant fit in control panels and enclosures, making installation straightforward and dependable.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\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\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest use:\u003c\/strong\u003e maintenance, retrofit, and replacement where exact specs match\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eWhat sets the MQJ3150 apart is its precise spec compatibility combined with a robust, field‑ready design. It’s your best option when upgrading or repairing three‑phase installations that require a 150A, 3‑pole unit with a bolt‑on footprint. The part number MQJ3150 serves as the definitive reference for compatibility, helping you avoid mismatches during procurement.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongmaintenance and replacement:\u003e swap in where exact 150A, 3‑pole, 240V specs are required to restore protective function quickly during outages or routine service.\u003c\/strongmaintenance\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongretrofit projects:\u003e modernize older panels or gear racks that were designed around MQJ3150‑class devices, ensuring seamless integration with existing wiring and enclosures.\u003c\/strongretrofit\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongthree motor and equipment protection:\u003e suitable for circuits feeding motors, compressors, and other heavy loads that demand reliable short‑circuit and overcurrent protection.\u003c\/strongthree\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and handling tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm fitment and ratings before ordering using the MQJ3150 part number as the compatibility anchor.\u003c\/li\u003e \u003cli\u003eMount the breaker with the bolt‑on hardware per enclosure guidelines to maintain secure contact and minimize vibration.\u003c\/li\u003e \u003cli\u003ePower down the system and verify proper wiring polarity and terminal tightness after installation.\u003c\/li\u003e \u003cli\u003eFollow site safety practices and local electrical codes when performing retrofits or replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the MQJ3150 when you need a precise, drop‑in solution for 150A, 3‑pole, 240V protection in industrial panels. Its bolt‑on design and clear compatibility reference help you achieve a reliable, long‑lasting installation that keeps critical systems protected and running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426880344226,"sku":"MQJ3150","price":2910.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/mqj3150-circuit-breaker-150a-3-pole-240v-bolt-198.webp?v=1789635633","url":"https:\/\/www.ampstate.com\/products\/mqj3150-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}