{"product_id":"siemens-ck3b090-circuit-breaker","title":"Siemens | CK3B090 | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens CK3B090 — 90A, 3-Pole, 600V Bolt-On Circuit Breaker\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CK3B090 from Siemens is a purpose-built three-pole circuit breaker designed to protect 3‑phase electrical systems in demanding environments. With a 90-amp rating and a 600-volt operating capability, it delivers dependable overcurrent protection for feeders and branch circuits in commercial, industrial, and retrofit projects.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 90 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 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for maintenance, retrofit, and replacement scenarios, the CK3B090 excels where exact compatibility matters. Confirm fit and ratings before ordering—the part number CK3B090 is the most reliable reference to ensure seamless integration with your Siemens panels or switchgear.\u003c\/p\u003e \u003cp\u003eWhy choose this Siemens circuit breaker? It’s built to slot into Siemens ecosystems with straightforward bolt-on installation, minimizing downtime during service. The 3‑pole configuration ensures balanced protection across all three phases, reducing the risk of uneven load distribution and improving overall system reliability in multi‑phase applications.\u003c\/p\u003e \u003cp\u003ePractical use cases you’ll appreciate:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing aging breakers in existing Siemens panelboards or switchgear where a 3‑pole, 90A, 600V device is specified.\u003c\/li\u003e \u003cli\u003eRetrofit projects that require exact CK3B090 compatibility to maintain electrical protection schemes without extensive panel modifications.\u003c\/li\u003e \u003cli\u003eResidential or light commercial installations that utilize three-phase distribution networks demanding reliable overcurrent protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTips for a smooth install and long-term performance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways verify panel compatibility and ratings against the CK3B090 before purchasing, using the exact part number as your reference.\u003c\/li\u003e \u003cli\u003ePrepare for bolt-on mounting by ensuring the mounting hardware and panel bus connections match the breaker’s specifications.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices during installation and maintenance to protect personnel and equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427286831266,"sku":"CK3B090","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-ck3b090-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}