{"product_id":"mersen-15a-1000v-dc-gpv-string-fuse-10x38mm-hp10m15","title":"Mersen 15A 1000V DC gPV String Fuse 10x38mm | HP10M15","description":"\u003c!-- SEO Product Name: Mersen 15A 1000V DC gPV String Fuse 10x38mm | HP10M15 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; color:#222222; line-height:1.6;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMersen HelioProtection HP10M15 string fuse\u003c\/strong\u003e is a \u003cstrong\u003e15A, 1000V DC gPV fuse\u003c\/strong\u003e in a \u003cstrong\u003e10 × 38mm\u003c\/strong\u003e body, designed to \u003cstrong\u003eprotect PV modules against reverse currents\u003c\/strong\u003e and ideal for \u003cstrong\u003emanaging strings in commercial PV systems\u003c\/strong\u003e. It suits a wide range of typical string configurations within the input parameters of \u003cstrong\u003ethree-phase inverters up to 50kW\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eMersen designs the HP10M series with a \u003cstrong\u003elow minimum breaking capacity of 1.35 times the rated current\u003c\/strong\u003e so it can \u003cstrong\u003esafely interrupt the low fault currents typical of PV arrays\u003c\/strong\u003e, while offering a \u003cstrong\u003e10kA maximum breaking capacity\u003c\/strong\u003e. It is \u003cstrong\u003eUL listed, CSA certified and approved to IEC 60269-6 (gPV)\u003c\/strong\u003e. Each fuse requires a \u003cstrong\u003esuitable fuse holder\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#ffffff; border:2px solid #008377CF; border-top:6px solid #008377CF; border-radius:8px; padding:12px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; line-height:1.2;\"\u003e15A\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; color:#333333; margin-top:4px;\"\u003eRated current\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#ffffff; border:2px solid #008377CF; border-top:6px solid #008377CF; border-radius:8px; padding:12px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; line-height:1.2;\"\u003e1000V DC\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; color:#333333; margin-top:4px;\"\u003eRated voltage\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#ffffff; border:2px solid #008377CF; border-top:6px solid #008377CF; border-radius:8px; padding:12px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; line-height:1.2;\"\u003egPV\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; color:#333333; margin-top:4px;\"\u003eIEC 60269-6 fuse class\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#ffffff; border:2px solid #008377CF; border-top:6px solid #008377CF; border-radius:8px; padding:12px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; line-height:1.2;\"\u003e10kA\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; color:#333333; margin-top:4px;\"\u003eMax. breaking capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#ffffff; border:2px solid #008377CF; border-top:6px solid #008377CF; border-radius:8px; padding:12px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; line-height:1.2;\"\u003e1.35 × In\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; color:#333333; margin-top:4px;\"\u003eMin. breaking capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#ffffff; border:2px solid #008377CF; border-top:6px solid #008377CF; border-radius:8px; padding:12px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; line-height:1.2;\"\u003e10 × 38mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; color:#333333; margin-top:4px;\"\u003eFuse size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #C62828; background:#FDECEA; border-radius:8px; padding:14px 16px; margin:12px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#C62828; margin-bottom:4px;\"\u003eSafety and compliance\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.5; color:#222222;\"\u003eFuse selection and installation must be carried out by a competent person in line with the system design and \u003cstrong\u003eBS 7671\u003c\/strong\u003e. Do not open or replace fuses under load.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #E65100; background:#FFF3E0; border-radius:8px; padding:14px 16px; margin:12px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#E65100; margin-bottom:4px;\"\u003eSelect the correct rating\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.5; color:#222222;\"\u003eThe fuse rating must be \u003cstrong\u003elower than or equal to the module's maximum reverse current (IRM)\u003c\/strong\u003e, at least \u003cstrong\u003e1.4 × Isc\u003c\/strong\u003e for an enclosure ambient of 45°C or less, and the rated voltage at least \u003cstrong\u003e1.2 × the string's open-circuit voltage\u003c\/strong\u003e. Higher enclosure temperatures need further derating. Fuses are not normally needed for one or two strings in parallel.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #008377CF; background:#0083771A; border-radius:8px; padding:14px 16px; margin:12px 0;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:4px;\"\u003eFuse holder required\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.5; color:#222222;\"\u003ePair with a Mersen HelioProtection Modulostar or UltraSafe fuse holder suitable for 10 × 38mm fuses, such as the CUS101HEL.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px; margin:28px 0 12px 0;\"\u003eKey features\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#0083771A; border-left:6px solid #008377CF; border-radius:8px; padding:14px 16px;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eReverse current protection\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#222222; line-height:1.5;\"\u003eDesigned to \u003cstrong\u003eprotect PV modules against reverse currents\u003c\/strong\u003e in multi-string arrays.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#0083771A; border-left:6px solid #008377CF; border-radius:8px; padding:14px 16px;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003egPV class\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#222222; line-height:1.5;\"\u003e\n\u003cstrong\u003egPV fuse\u003c\/strong\u003e approved to \u003cstrong\u003eIEC 60269-6\u003c\/strong\u003e for PV energy systems.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#0083771A; border-left:6px solid #008377CF; border-radius:8px; padding:14px 16px;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003e1000V DC rated\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#222222; line-height:1.5;\"\u003eMaximum operating voltage equals the rated \u003cstrong\u003e1000V DC\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#0083771A; border-left:6px solid #008377CF; border-radius:8px; padding:14px 16px;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eLow fault current interruption\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#222222; line-height:1.5;\"\u003e\n\u003cstrong\u003e1.35 × In minimum breaking capacity\u003c\/strong\u003e for safe interruption under typical PV fault conditions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#0083771A; border-left:6px solid #008377CF; border-radius:8px; padding:14px 16px;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003e10kA breaking capacity\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#222222; line-height:1.5;\"\u003e\n\u003cstrong\u003e10kA maximum breaking capacity\u003c\/strong\u003e for robust short-circuit performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#0083771A; border-left:6px solid #008377CF; border-radius:8px; padding:14px 16px;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eGlobal approvals\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#222222; line-height:1.5;\"\u003e\n\u003cstrong\u003eUL listed\u003c\/strong\u003e, \u003cstrong\u003eCSA certified\u003c\/strong\u003e and \u003cstrong\u003eIEC 60269-6\u003c\/strong\u003e approved.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px; margin:28px 0 12px 0;\"\u003eTechnical specification\u003c\/h3\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; margin-top:10px; border-radius:6px 6px 0 0;\"\u003eGeneral\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#008377CF; color:#ffffff; font-weight:700;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:10px 12px;\"\u003eParameter\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:10px 12px;\"\u003eSpecification\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eBrand\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003eMersen (HelioProtection)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#0083771A; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003ePart number\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003eHP10M15\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eSeries\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003eHP10M, 1000V DC gPV\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#0083771A; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eRated current\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e15A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eRated voltage\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e1000V DC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#0083771A; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eDimensions\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e38.1mm length, 10.4mm diameter (10 × 38mm)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; margin-top:10px; border-radius:6px 6px 0 0;\"\u003ePerformance\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#008377CF; color:#ffffff; font-weight:700;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:10px 12px;\"\u003eParameter\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:10px 12px;\"\u003eSpecification\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eMaximum operating voltage\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e1000V DC (rated voltage)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#0083771A; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eMinimum breaking capacity\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e1.35 × In\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eMaximum breaking capacity\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e10kA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#0083771A; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003ePower dissipation at 70% of rating\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e0.9W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003ePower dissipation at 80% of rating\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e1.3W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#0083771A; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003ePower dissipation at 100% of rating\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003e2.2W\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; margin-top:10px; border-radius:6px 6px 0 0;\"\u003eApprovals\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#008377CF; color:#ffffff; font-weight:700;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:10px 12px;\"\u003eParameter\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:10px 12px;\"\u003eSpecification\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #008377CF;\"\u003e\n\u003cdiv style=\"flex:1 1 90px; padding:9px 12px; font-weight:700; color:#008377CF;\"\u003eStandards\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 90px; padding:9px 12px; color:#222222;\"\u003eUL listed, CSA certified, IEC 60269-6 (gPV)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px; margin:28px 0 12px 0;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdetails style=\"margin:8px 0; border:2px solid #008377CF; border-radius:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhat is a gPV fuse?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.55; color:#222222;\"\u003eA \u003cstrong\u003egPV fuse\u003c\/strong\u003e is a fuse-link designed to IEC 60269-6 for the protection of solar PV energy systems, with the low fault current breaking capability typical of PV arrays.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0; border:2px solid #008377CF; border-radius:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eDo I need string fuses?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.55; color:#222222;\"\u003eFuses are not normally required with \u003cstrong\u003eone or two strings in parallel\u003c\/strong\u003e. With three or more strings, check how many strings can run in parallel without protection using the module's reverse current rating.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0; border:2px solid #008377CF; border-radius:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhat size fuse do I need?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.55; color:#222222;\"\u003eThe rating should be at least \u003cstrong\u003e1.4 × the module Isc\u003c\/strong\u003e and no higher than the module's \u003cstrong\u003emaximum reverse current\u003c\/strong\u003e, with extra derating for hot combiner boxes.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0; border:2px solid #008377CF; border-radius:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhat voltage rating is needed?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.55; color:#222222;\"\u003eThe fuse rated voltage should be at least \u003cstrong\u003e1.2 × the string's open-circuit voltage\u003c\/strong\u003e, to allow for cold-weather voltage rise.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"margin:8px 0; border:2px solid #008377CF; border-radius:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhich fuse holders can I use?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.55; color:#222222;\"\u003eMersen Modulostar HelioProtection holders for 10 × 38mm fuses, including the \u003cstrong\u003eUS101HEL\u003c\/strong\u003e series, and the UltraSafe \u003cstrong\u003eUSGM1HEL\u003c\/strong\u003e series, which lists HP10M fuses.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Mersen","offers":[{"title":"Default Title","offer_id":67594112893318,"sku":"HP10M15","price":7.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Mersen15A1000VDCgPVStringFuse10x38mmHP10M15.jpg?v=1791529855","url":"https:\/\/qualityheating.co.uk\/products\/mersen-15a-1000v-dc-gpv-string-fuse-10x38mm-hp10m15","provider":"AIZO Quality Heating","version":"1.0","type":"link"}