{"product_id":"ultraflex-721-przelacznik-baterii-b1-b2-48v-350a-ultraflex-63143e","title":"Ultraflex 721 Battery Switch B1 B2 48V 350A - 63143E","description":"\u003cp\u003eThe Ultraflex 721 Battery Switch B1 B2 Selector is a high-current battery switch designed for use in electrical installations of boats, yachts, and specialized vehicles where reliable power management from two independent batteries is required. The device allows selection of the power source – Battery 1 (B1), Battery 2 (B2), both simultaneously, or complete circuit disconnection, enabling safe disconnection of the system during servicing or extended downtime. The switch is panel-mounted, ensuring robust construction and resistance to harsh environmental conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous current: 350A\u003c\/li\u003e\n\u003cli\u003eIntermittent current (short-term): 1000A for 5 seconds\u003c\/li\u003e\n\u003cli\u003eMaximum voltage: 48V DC\u003c\/li\u003e\n\u003cli\u003eNumber of switching positions: 4 (OFF, B1, B2, B1+B2)\u003c\/li\u003e\n\u003cli\u003eMounting type: panel\u003c\/li\u003e\n\u003cli\u003eHousing material: corrosion-resistant plastic\u003c\/li\u003e\n\u003cli\u003eProtection rating: IP56\u003c\/li\u003e\n\u003cli\u003eDimensions: 135x135x75mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.7kg\u003c\/li\u003e\n\u003cli\u003eOperating temperature range: -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003eCompatibility: lead-acid, AGM, gel batteries\u003c\/li\u003e\n\u003cli\u003eStandards\/certificates: CE, ISO 8846 (ignition protection)\u003c\/li\u003e\n\u003cli\u003eWarranty: 2 years\u003c\/li\u003e\n\u003cli\u003eSeries: 721\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart Number: 63143E\u003c\/p\u003e","brand":"Ultraflex","offers":[{"title":"Default Title","offer_id":53087054463303,"sku":"63143E","price":702.91,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0907\/4858\/4263\/files\/6d0af8430e7d12e6486f48e394a666ca.jpg?v=1767799277","url":"https:\/\/www.smartsailsaver.com\/products\/ultraflex-721-przelacznik-baterii-b1-b2-48v-350a-ultraflex-63143e","provider":"Smart Sail Saver","version":"1.0","type":"link"}