{"product_id":"5x20mm-glass-fuse-1a-250v-slow-blow","title":"5x20mm Glass Fuse 1A 250V Slow Blow - M205 Time Delay Cartridge Fuse","description":"\u003cdiv class=\"nznpd\"\u003e\n\u003cdiv class=\"nznpd__lead\"\u003e\n\u003cp class=\"nznpd__intro\"\u003eA 1A slow-blow (time-delay) glass fuse in the common 5x20mm size, also called M205. A slow-blow fuse rides through the short surge a motor, transformer or power supply draws at switch-on, then opens on a sustained overload or short. Use it where the equipment calls for a T fuse, or where a fast fuse of the same rating keeps blowing at switch-on with no fault present. For electronics with no switch-on surge, the \u003ca href=\"\/products\/5x20mm-glass-fuse-1a-250v-fast-blow\"\u003e1A fast-blow version\u003c\/a\u003e opens quicker.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__specs\"\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSize\u003c\/span\u003e\u003cstrong\u003e5 x 20mm (M205) cartridge\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eCurrent rating\u003c\/span\u003e\u003cstrong\u003e1A\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eVoltage rating\u003c\/span\u003e\u003cstrong\u003e250V maximum, fine on any lower voltage\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSpeed\u003c\/span\u003e\u003cstrong\u003eTime-lag (T), also called slow blow or time delay\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eSwitch-on surges\u003c\/span\u003e\u003cstrong\u003eRides through short motor, transformer and capacitor inrush\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eNormal running current\u003c\/span\u003e\u003cstrong\u003eUp to about 0.75A for a fuse that lasts\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eBody\u003c\/span\u003e\u003cstrong\u003eClear glass tube, fuse wire with a solder bead\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003eFits\u003c\/span\u003e\u003cstrong\u003e5x20mm panel holders, inline holders and PCB fuse clips\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"nznpd__spec\"\u003e\n\u003cspan\u003ePolarity\u003c\/span\u003e\u003cstrong\u003eNone, fits either way round\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003ca class=\"nznpd__dsbar\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/nzn-5x20mm-glass-fuse-1a-250v-slow-blow-datasheet.pdf\" target=\"_blank\" rel=\"noopener\" aria-label=\"Download the 5x20mm 1A slow-blow glass fuse technical datasheet (PDF)\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\n\u003cspan\u003eFull technical datasheet, marking guide and fuse selection guide\u003c\/span\u003e\n\u003cspan class=\"nznpd__dsmeta\"\u003ePDF\u003csvg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4\"\u003e\u003c\/path\u003e\u003cpolyline points=\"7 10 12 15 17 10\"\u003e\u003c\/polyline\u003e\u003cline x1=\"12\" y1=\"15\" x2=\"12\" y2=\"3\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eWhat's in the box\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__included\"\u003e\n\u003cdiv class=\"nznpd__qty\"\u003e5+\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e1A 5x20mm slow-blow glass fuses\u003c\/strong\u003e\u003cp\u003eSold per fuse with a minimum of 5. You receive the quantity you order, loose in a clear bag.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"nznpd__block\"\u003e\n\u003ch3 class=\"nznpd__h\"\u003eGreat for\u003c\/h3\u003e\n\u003cdiv class=\"nznpd__uses\"\u003e\n\u003cdiv class=\"nznpd__use\"\u003eReplacing a blown T1A fuse in a power supply, amplifier or appliance\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eFusing a small 12V motor, pump or fan that surges at start-up\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eThe primary side of a small transformer\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eProject boxes with a panel-mount fuse holder\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eInline fuse holders on car and caravan accessories\u003c\/div\u003e\n\u003cdiv class=\"nznpd__use\"\u003eKeeping spares in the toolbox for 5x20mm holders\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"nznpd__block\"\u003e\n\u003cdiv class=\"nznpd__qs\"\u003e\n\u003ch3\u003eWiring \u0026amp; getting started\u003c\/h3\u003e\n\u003col class=\"nznpd__steps\"\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eCheck the size and rating\u003c\/strong\u003e\u003cp\u003eMeasure the old fuse: 20mm long and 5mm across is this size. Replace like with like: the same current, the same speed (T for slow, F for fast) and a voltage rating at least as high as the circuit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eSlow or fast?\u003c\/strong\u003e\u003cp\u003eChoose slow-blow for loads that surge at switch-on: motors, transformers and power supplies with big capacitors. Where the equipment specifies an F fuse, fit the fast version, because a slow fuse lets a fault run for longer.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eFit it in a holder\u003c\/strong\u003e\u003cp\u003eUse a 5x20mm fuse holder in the positive or active line, as close to the power source as you can. Turn the power off before changing a fuse.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eChecking a blown fuse\u003c\/strong\u003e\u003cp\u003eA blown fuse has a broken wire or a darkened, smoky glass. A dark glass means a hard short, so find the fault before you fit a new one.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cp class=\"nznpd__note\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Glass fuses suit electronics and low-voltage DC work. When replacing a fuse inside mains equipment, match the original exactly; if it was a ceramic or sand-filled fuse, use the same type, not glass.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"NZN Electronics","offers":[{"title":"Default Title","offer_id":67661635715168,"sku":"FUSE-GLS-5X20-T1A","price":1.15,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/5x20mm-glass-fuse-1a-250v-slow-blow-five.png?v=1792131634","url":"https:\/\/www.nznelectronics.co.nz\/products\/5x20mm-glass-fuse-1a-250v-slow-blow","provider":"NZN Electronics","version":"1.0","type":"link"}