{"product_id":"industrial-qy18u250b0-dc-circuit-breaker","title":"Industrial QY18U250B0 DC Circuit Breaker","description":"\u003cdiv\u003e\u003cp\u003eThe CBI Electric QY18U250B0 is a 1‑pole DC circuit breaker rated for 50 A at 80 V DC, designed for DIN‑rail mounting in DC power distribution panels. It belongs to CBI’s QY family of DC protection devices and is described in listings as a PV‑oriented, single‑pole breaker suitable for protecting DC circuits in photovoltaic installations. This compact unit provides overcurrent protection for DC strings and battery‑based DC supplies by interrupting current during overload or fault conditions, helping to prevent damage to downstream equipment and minimize downtime. Its 80 V DC rating indicates the maximum DC operating voltage it is intended to interrupt, making it appropriate for low‑voltage DC distribution networks and solar or storage systems that operate around that range. The “QY18U250B0” designation identifies this specific variant within the QY lineup, with a form factor and mounting style that align with standard DIN rails used in commercial DC distribution panels. In practice, it serves as a straightforward, field‑installable protection device for 50 A circuits in photovoltaic and other DC power architectures, offering a reliable, resettable means of interrupting fault currents on the protected leg without requiring complex wiring or specialized tools. \u003c\/p\u003e\u003c\/div\u003e","brand":"CBI","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51677880353070,"sku":null,"price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_340b3e94-1d79-4d7e-b908-5ebaf48762d6.jpg?v=1769568872","url":"https:\/\/plgautomation.com\/products\/industrial-qy18u250b0-dc-circuit-breaker","provider":"PLG Automation ","version":"1.0","type":"link"}