{"product_id":"mersen-250a-battery-fuses-dc-disconnector-nh00","title":"Battery Fuses \u0026 DC Disconnector 250A. Mersen High Current Protection","description":"\u003ch1 style=\"color: #f87c24;\"\u003eMersen 250A Battery Fuses and DC Disconnector – NH00 High Current Protection\u003c\/h1\u003e\u003cp\u003eThis Mersen fuse and disconnector set provides essential overcurrent protection and isolation between the battery bank and inverter in off-grid and hybrid solar systems. The NH00 gL\/gG fuses are rated for high continuous DC currents and are suitable for protecting lithium and lead-acid batteries in systems from 8kW upwards. The 250A disconnector allows safe isolation of the battery bank during maintenance or in an emergency.\u003c\/p\u003e\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2x Mersen NH00 gL\/gG DC fuses (200A or 250A, one for positive and one for negative battery pole)\u003c\/li\u003e\n\u003cli\u003e1x 250A DC disconnector (isolator)\u003c\/li\u003e\n\u003cli\u003eFuse enclosure included\u003c\/li\u003e\n\u003cli\u003eSuitable for lithium-ion and lead-acid battery banks\u003c\/li\u003e\n\u003cli\u003eDesigned for high continuous discharge currents in solar inverter applications\u003c\/li\u003e\n\u003cli\u003eSuitable for inverters rated 8kW, 10kW, 11kW and above\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\u003cp\u003eIn any off-grid or hybrid solar system, the cable between the battery bank and the inverter carries the highest continuous current in the installation. Correctly rated fuses on both the positive and negative conductors protect the battery bank and cabling against short-circuit and overcurrent faults. The DC disconnector allows the battery bank to be safely isolated from the inverter without needing to disconnect individual battery terminals, reducing the risk of arcing and electric shock during maintenance.\u003c\/p\u003e\u003cp\u003eThe NH00 fuse format is a standard industrial cartridge type widely used in European solar and energy storage installations. The enclosure and disconnector are designed to work together as a compact protection and isolation assembly, suitable for wall mounting in a plant room or electrical cabinet.\u003c\/p\u003e\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1x Fuse enclosure\u003c\/li\u003e\n\u003cli\u003e2x Mersen NH00 gL\/gG DC fuses (200A and 250A available, one for positive, one for negative)\u003c\/li\u003e\n\u003cli\u003e1x 250A DC disconnector\u003c\/li\u003e\n\u003cli\u003e1x Installation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBattery overcurrent protection in off-grid solar systems\u003c\/li\u003e\n\u003cli\u003eHybrid inverter battery isolation and protection\u003c\/li\u003e\n\u003cli\u003eHigh current DC protection for inverters rated 8kW and above\u003c\/li\u003e\n\u003cli\u003eLithium and lead-acid battery bank installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color: #f87c24;\"\u003eInstallation and Safety Notes\u003c\/h3\u003e\u003cp\u003eThis protection assembly must be installed by a qualified electrician. DC circuits in solar battery systems carry dangerous voltages and high fault currents. Fuse selection must be matched to the cable rating and the maximum discharge current of the battery bank. Always isolate all power sources before working on DC connections. Install in accordance with IET Wiring Regulations and the inverter and battery manufacturers' guidelines.\u003c\/p\u003e","brand":"Mersen","offers":[{"title":"Add 2x NH 200Amp Fuses","offer_id":47624130756942,"sku":"S229878+P218766","price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Add 2x NH 250Amp Fuses","offer_id":47624130789710,"sku":"S229878+E219815","price":145.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/battery-fuses-dc-disconnector-250a-mersen-high-current-protection-813468.jpg?v=1770935620","url":"https:\/\/voltaconsolar.com\/products\/mersen-250a-battery-fuses-dc-disconnector-nh00","provider":"VoltaconSolar","version":"1.0","type":"link"}