{"product_id":"surge-arrestor-100ka-2-4-pole-385v-onesto-spd","title":"Surge Arrestor 100kA, 2-4 Pole, 385V | Onesto SPD","description":"\u003cp\u003eThe Onesto BY7-100 Surge Protection Device is a Class II (Type 2) surge arrestor rated at 100kA, the highest discharge rating in the Onesto BY7 range. It is designed to protect main electrical incomers, distribution boards and connected equipment from severe transient overvoltage caused by direct or nearby lightning strikes and major switching surges. Suitable for commercial, industrial and high-risk TN and TT power supply networks, it offers a visual pass\/fail status indicator so installers and maintenance teams can check protection status at a glance. Available in 2, 3 and 4 pole configurations at 385V, it is the recommended choice for main board protection on sites with significant lightning exposure, such as farms, elevated structures and large commercial premises.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Suitable for main incoming board surge protection on high-risk TN\/TT networks, 385V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey specification:\u003c\/strong\u003e 100kA maximum discharge current (Imax), Class II \/ Type 2 SPD — the highest rating in the Onesto BY7 range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Available in 2, 3 and 4 pole versions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus indicator:\u003c\/strong\u003e Green\/red indication window shows functional or failed status\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 35mm DIN rail, IP20 enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color:#2C3892;\"\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e100kA maximum discharge current (8\/20µs) — the highest capacity available in the Onesto BY7 series, suited to severe lightning risk locations\u003c\/li\u003e\n\u003cli\u003eVisual green (functional) \/ red (failed) indication window means the device can be checked without removing it from the DIN rail\u003c\/li\u003e\n\u003cli\u003ePA66 UL94-V0 flame-retardant housing suited to enclosure and distribution board installation\u003c\/li\u003e\n\u003cli\u003eCompact DIN rail mounting despite the high discharge capacity\u003c\/li\u003e\n\u003cli\u003eSuitable for TN and TT earthing systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color:#2C3892;\"\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMain incoming board protection for farms, rural properties and elevated structures with severe lightning exposure\u003c\/li\u003e\n\u003cli\u003eLarge commercial and industrial premises requiring maximum surge protection\u003c\/li\u003e\n\u003cli\u003eFirst stage of a coordinated (cascaded) surge protection scheme ahead of downstream 10-40kA SPDs\u003c\/li\u003e\n\u003cli\u003eProtection of critical control, communications and electronic equipment\u003c\/li\u003e\n\u003cli\u003eSites with a documented history of lightning-related equipment damage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color:#2C3892;\"\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnesto\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBY7-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass II \/ Type 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum discharge current (Imax, 8\/20µs)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100kA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum continuous operating voltage (Uc)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e385V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoles available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2P, 3P, 4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatus indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGreen: functional \/ Red: failed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDegree of protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower supply network\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTN, TT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e35mm DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePA66 UL94-V0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5% - 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2000m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEC61643-11:2011, EN61643-11:2012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3 style=\"color:#2C3892;\"\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 x Onesto BY7-100 Surge Protection Device (pole configuration as selected)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e DIN rail, distribution board wiring, circuit breakers and installation accessories are not included unless specifically listed above.\u003c\/p\u003e\u003ch3 style=\"color:#2C3892;\"\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfirm your board's earthing system (TN or TT) before ordering — this range is supplied at 385V.\u003c\/li\u003e\n\u003cli\u003eSelect the pole configuration (2P, 3P or 4P) that matches your distribution board and phase configuration.\u003c\/li\u003e\n\u003cli\u003eFor sites with severe lightning exposure, consider a coordinated scheme with a downstream 10-40kA SPD closer to sensitive equipment — contact Zisabo for guidance.\u003c\/li\u003e\n\u003cli\u003eInstallation should be carried out by a suitably qualified electrician in line with local wiring regulations.\u003c\/li\u003e\n\u003cli\u003eCheck the status indicator periodically — a red window means the SPD has operated and must be replaced.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 style=\"color:#2C3892;\"\u003eWarranty \u0026amp; Support\u003c\/h3\u003e\u003cp\u003eThis product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms.\u003c\/p\u003e\u003cp\u003eZisabo supplies quality plumbing, pump, filtration and electrical products with practical support to help customers choose the correct item for their application. If you are unsure whether this product is suitable, contact us before ordering and our team will assist where possible.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed help choosing?\u003c\/strong\u003e If you are unsure whether this product is suitable for your board, contact Zisabo with your system voltage, earthing type, pole configuration and lightning risk details, and we will assist where possible.\u003c\/p\u003e","brand":"Onesto","offers":[{"title":"2P","offer_id":49515486675201,"sku":"BY7-100\/2-385","price":1140.8,"currency_code":"ZAR","in_stock":true},{"title":"3P","offer_id":49515486707969,"sku":"BY7-100\/3-385","price":1647.9,"currency_code":"ZAR","in_stock":true},{"title":"4P","offer_id":49515486740737,"sku":"BY7-100\/4-385","price":3929.5,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/6924\/2369\/files\/BY7-60_4deb90f6-bd71-47fe-83df-ea890f0ef375.png?v=1783162590","url":"https:\/\/www.zisabo.co.za\/products\/surge-arrestor-100ka-2-4-pole-385v-onesto-spd","provider":"Zisabo","version":"1.0","type":"link"}