{"product_id":"siemens-mbk225a-225a-plug-in-circuit-breaker","title":"Siemens MBK225 A - 225 A Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens MBK225A 225A Plug-In Molded Case Circuit Breaker is engineered to protect branch circuits in panelboards and load centers with unwavering reliability. Its fast plug-in connection simplifies installation and makes replacements quick, minimizing downtime during upgrades or service calls.\u003c\/p\u003e \u003ch2\u003eWhat makes the MBK225A stand out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRapid plug-in installation\u003c\/strong\u003e — a secure plug-in connection that snaps into compatible Siemens OEM panelboards and load centers, reducing labor time and the chance of loose or inconsistent seating.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — combines thermal sensing for deliberate, stable overcurrent protection with magnetic actuation for instantaneous short-circuit clearing, delivering repeatable protection under real-world fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for compatibility\u003c\/strong\u003e — built to match the corresponding OEM load centers and panelboards, ensuring proper fit, accurate trip characteristics, and streamlined maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple environments\u003c\/strong\u003e — ideal for residential, commercial, and light industrial applications where dependable branch circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e MBK225A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 225A\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Plug-in\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eNew panel installations that require a robust 225A plug-in breaker to meet demand and protection standards.\u003c\/li\u003e \u003cli\u003ePanelboard upgrades where OEM-compatible plug-in protection maintains correct trip characteristics.\u003c\/li\u003e \u003cli\u003eService restoration or maintenance scenarios where quick replacement minimizes downtime.\u003c\/li\u003e \u003cli\u003eResidential subpanels, commercial suites, and light industrial feeders needing reliable, code-aligned protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow this MBK225A improves outcomes\u003c\/h2\u003e\n\u003cp\u003eWith a thermal-magnetic trip design and a plug-in form factor, it delivers predictable, repeatable protection while simplifying field service. The result is safer wiring, fewer nuisance trips, and faster turnarounds during installation or repair. When you need a high-current, dependable solution that fits seamlessly into your Siemens ecosystem, the MBK225A is purpose-built to deliver.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355133628578,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_a8c550cd-8521-449a-9f02-db37939a5cc5.png?v=1764689498","url":"https:\/\/www.ampstate.com\/products\/siemens-mbk225a-225a-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}