{"product_id":"siemens-qpj3125-125a-3p-240v-circuit-breaker","title":"Siemens QPJ3125 125A 3P 240V Circuit Breaker, Plug-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eDesigned for reliable circuit protection in panelboards, load centers, and electrical distribution systems, the Siemens QPJ3125 125A 3P 240V Plug-On Circuit Breaker is a practical choice for retrofit work and maintenance when the part number must stay consistent.\u003c\/p\u003e\n\u003cp\u003eWith a plug-on connection, installation is straightforward—you simply mount it onto the compatible bus and secure the breaker's trip unit, minimizing downtime during replacements or upgrades. This 3-pole, 240V unit handles up to 125 amps across a three-phase circuit, delivering dependable protection for commercial and light-industrial environments where power distribution matters most.\u003c\/p\u003e \u003ch3\u003eKey advantages\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug-On installation\u003c\/strong\u003e for fast, tool-light mounting on compatible Siemens panelboards and load centers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e125 A, 3-pole, 240 V configuration\u003c\/strong\u003e designed for three-phase distribution and feeder protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent part number\u003c\/strong\u003e QPJ3125 supports retrofit planning, spare parts stocking, and maintenance scheduling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSiemens reliability\u003c\/strong\u003e with a trusted, industry-standard solution within the Siemens QPJ family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpState availability\u003c\/strong\u003e — ships this exact part and can assist with compatibility confirmation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Siemens\u003c\/li\u003e\n\u003cli\u003ePart Number: QPJ3125\u003c\/li\u003e\n\u003cli\u003eProduct Type: Circuit Breaker\u003c\/li\u003e\n\u003cli\u003eAmperage: 125 A\u003c\/li\u003e\n\u003cli\u003ePoles: 3\u003c\/li\u003e\n\u003cli\u003eVoltage: 240 V\u003c\/li\u003e\n\u003cli\u003eDesign: Plug-On\u003c\/li\u003e\n\u003cli\u003eAvailability: AmpState\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRetrofit projects in panelboards and load centers where the existing part number must be maintained for quick ordering and compatibility.\u003c\/li\u003e\n\u003cli\u003eMaintenance planning for facilities with three-phase 240V distribution needing reliable protection and minimal downtime.\u003c\/li\u003e\n\u003cli\u003eNew installations in commercial spaces that require a proven Siemens solution for three-phase circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message AmpState and we’ll help you verify fit before you buy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410870292642,"sku":"QPJ3125","price":3458.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/siemens-qpj3125-125a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}