{"product_id":"industrial-ecsr-300-u-300a-600v-cl-rk5-circuit-breaker","title":"Industrial ECSR-300 U 300A 600V CL RK5 Circuit Breaker","description":"\u003cdiv\u003e\u003cp\u003eReliance ECSR-300 U is a 300 A, 600 V AC current-limiting fuse from the Edison Bussmann ECSR RK5 family, featuring a dual-element time-delay design for reliable protection in demanding industrial power systems. This RK5-class device is intended for feeders and branch circuits, delivering fast short-circuit clearance while tolerating normal inrush associated with motors, transformers, and other inductive loads. Rated at 600 VAC with a 300 A continuous rating, the ECSR-300 U helps safeguard conductors, switchgear, and downstream equipment in control panels, motor rooms, and distribution assemblies, making it a go-to choice where high fault-current protection and selective coordination are required.\u003c\/p\u003e\u003c\/div\u003e","brand":"RELAINCE","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46285475741930,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-024.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/industrial-ecsr-300-u-300a-600v-cl-rk5-circuit-breaker","provider":"GTG Hardware","version":"1.0","type":"link"}