{"product_id":"dc-mccb-630-frame-500a-630a-3-pole-4-pole-onesto-kcmd","title":"DC MCCB 630 Frame, 500A-630A - 3 Pole \u0026 4 Pole | Onesto KCMD","description":"\u003cp\u003eThe Onesto KCMD 630 Frame DC MCCB is a moulded case circuit breaker designed specifically for DC circuit protection and isolation, not standard AC mixed load use. It is suitable for electricians, solar installers and technicians working on utility-scale solar PV installations, large battery energy storage systems and heavy industrial DC distribution boards. Available in current ratings from 500A to 630A, in 3 Pole (750VDC) or 4 Pole (1000VDC) configurations.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Suitable for utility-scale solar PV, large battery storage and heavy industrial DC distribution circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey specification:\u003c\/strong\u003e DC-rated, 750VDC (3 Pole) or 1000VDC (4 Pole)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent range:\u003c\/strong\u003e 500A or 630A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePole configuration:\u003c\/strong\u003e Available in 3 Pole (750VDC) or 4 Pole (1000VDC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuild quality:\u003c\/strong\u003e SABS approved to IEC 60947-2 \/ SANS 556-1, 630 frame\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePurpose-built for DC circuits — not a like-for-like substitute for an AC MCCB\u003c\/li\u003e\n  \u003cli\u003eHigher pole count increases the rated DC voltage withstand, allowing 4 Pole units to be used on higher-voltage DC strings\u003c\/li\u003e\n  \u003cli\u003eMoulded case construction for durability in panel and enclosure installations\u003c\/li\u003e\n  \u003cli\u003eRated for continuous operation at 40°C ambient\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUtility-scale solar PV array and combiner protection\u003c\/li\u003e\n  \u003cli\u003eLarge battery energy storage system (BESS) DC protection\u003c\/li\u003e\n  \u003cli\u003eHeavy industrial DC distribution boards\u003c\/li\u003e\n  \u003cli\u003eDC microgrid and power system protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \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\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKCMD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC Moulded Case Circuit Breaker (MCCB), mixed load\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e270 x 182 x 114mm (3 Pole) \/ 270 x 240 x 114mm (4 Pole)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500A \/ 630A (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePoles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Pole or 4 Pole (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated operating voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e750VDC (3 Pole) \/ 1000VDC (4 Pole)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient temperature rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBreaking capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot specified by supplier — confirm with Zisabo before specifying for high fault-level DC applications\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIEC 60947-2, SANS 556-1 (SABS approved)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Onesto KCMD 630 Frame DC MCCB (as per selected current rating and pole configuration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Enclosures, mounting accessories and connection cabling are not included and are available separately.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eInstallation \u0026amp; Compatibility Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the required current rating and pole configuration before ordering — the rated DC voltage changes with pole count (750VDC for 3 Pole, 1000VDC for 4 Pole).\u003c\/li\u003e\n  \u003cli\u003eConfirm this breaker's voltage rating matches or exceeds your system's maximum DC voltage before installation.\u003c\/li\u003e\n  \u003cli\u003eDC circuit breakers must be connected with correct polarity according to the manufacturer's wiring diagram.\u003c\/li\u003e\n  \u003cli\u003eBreaking capacity is not specified in supplier documentation — contact Zisabo to confirm suitability for your fault-current levels before ordering.\u003c\/li\u003e\n  \u003cli\u003eInstallation must be carried out by a suitably qualified electrician or solar installer in accordance with local electrical regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#2C3892;\"\u003eWarranty \u0026amp; Support\u003c\/h3\u003e\n\u003cp\u003eThis product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms.\u003c\/p\u003e\n\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\n\n\u003cp\u003e\u003cstrong\u003eNeed help choosing?\u003c\/strong\u003e If you are unsure which current rating or pole configuration is correct for your DC system, contact Zisabo with your application details, system voltage and fault-current requirements, and we will assist where possible.\u003c\/p\u003e","brand":"Onesto","offers":[{"title":"500A \/ 3 Pole","offer_id":49514887479553,"sku":"KCMD-630-3500","price":6347.8,"currency_code":"ZAR","in_stock":true},{"title":"500A \/ 4 Pole","offer_id":49514887512321,"sku":"KCMD-630-4500","price":7572.2,"currency_code":"ZAR","in_stock":true},{"title":"630A \/ 3 Pole","offer_id":49514887545089,"sku":"KCMD-630-3630","price":6347.8,"currency_code":"ZAR","in_stock":true},{"title":"630A \/ 4 Pole","offer_id":49514887577857,"sku":"KCMD-630-4630","price":7572.2,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/6924\/2369\/files\/KCMD-630-3500.png?v=1783142664","url":"https:\/\/www.zisabo.co.za\/products\/dc-mccb-630-frame-500a-630a-3-pole-4-pole-onesto-kcmd","provider":"Zisabo","version":"1.0","type":"link"}