{"id":4363,"date":"2026-10-26T12:56:35","date_gmt":"2026-10-26T12:56:35","guid":{"rendered":"https:\/\/estrexsolar.co.ke\/?post_type=product&p=4363"},"modified":"2026-10-30T15:01:25","modified_gmt":"2026-10-30T15:01:25","slug":"suntree-dc-mccb-breaker-2-pole-500vdc","status":"publish","type":"product","link":"https:\/\/estrexsolar.co.ke\/?product=suntree-dc-mccb-breaker-2-pole-500vdc","title":{"rendered":"Suntree DC MCCB (Molded Case Circuit Breaker) 2 Pole 500VDC"},"content":{"rendered":"
The Suntree DC MCCB (Molded Case Circuit Breaker)<\/strong> 2 Pole 500VDC <\/span>is a heavy-duty safety switch designed to protect solar photovoltaic (PV) arrays, commercial solar inverters, and large battery storage systems from electrical overloads and short circuits.\u00a0<\/div>\n
Unlike smaller DIN-rail Miniature Circuit Breakers (MCBs), an MCCB provides much higher current ratings (often ranging from 100A up to 250A) and significantly higher short-circuit interrupting capabilities to safely snuff out high-energy DC arcs.\u00a0<\/div>\n
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Suntree DC MCCB (Molded Case Circuit Breaker)<\/strong> 2 Pole 500VDC <\/span>Key Specifications & Features<\/div>\n

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  • Voltage Rating:<\/strong> 500V DC<\/strong> (engineered specifically for mid-voltage DC solar strings or high-capacity battery banks).<\/span><\/li>\n
  • Configuration:<\/strong> 2-Pole (Double Pole)<\/strong> to isolate both the positive (+) and negative (-) legs of your DC circuit simultaneously.<\/span><\/li>\n
  • Enclosed Arc Chamber:<\/strong> Built with zero-arc-flash technology, meaning it handles internal faults safely without requiring extra partition plates inside your electrical cabinet.<\/span><\/li>\n
  • Rugged Mechanical Life:<\/strong> Built to withstand up to 10,000 mechanical operations for frame sizes under 250A.<\/span><\/li>\n
  • Extreme Temp Endurance:<\/strong> Operates reliably in environmental conditions ranging from -20\u00b0C to 70\u00b0C<\/strong>.<\/span><\/li>\n

    <\/ul>\n

    <\/div>\n
    Critical Installation Warnings<\/div>\n

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    • Polarity Sensitivity:<\/strong> DC MCCBs are strictly polarity-sensitive<\/strong>. You must line up the positive (+) and negative (-) wires coming from your panels or batteries exactly with the stamped markings on the breaker. Reversing the polarity will prevent the internal magnetic chutes from extinguishing an electrical arc, creating a serious fire hazard.<\/span>\u00a0<\/li>\n
    • Sizing Safety Margin:<\/strong> When matching this breaker to your solar array, always calculate 125% of the total short-circuit current (Isc)<\/strong> of your solar strings to avoid nuisance tripping from normal peak sun exposure.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      The Suntree DC MCCB (Molded Case Circuit Breaker) 2 Pole 500VDC is a heavy-duty safety switch designed to protect solar photovoltaic (PV) arrays, commercial solar inverters, and large battery storage systems from electrical overloads and short circuits.\u00a0 Unlike smaller DIN-rail Miniature Circuit Breakers (MCBs), an MCCB provides much higher current ratings (often ranging from 100A […]\n","protected":false},"featured_media":4370,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[142],"product_cat":[94],"product_tag":[],"class_list":["post-4363","product","type-product","status-publish","has-post-thumbnail","product_brand-suntree","product_cat-dc-accessories","first","instock","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/product\/4363","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4363"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/media\/4370"}],"wp:attachment":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4363"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=4363"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=4363"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=4363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}