{"id":4318,"date":"2026-10-24T13:12:04","date_gmt":"2026-10-24T13:12:04","guid":{"rendered":"https:\/\/estrexsolar.co.ke\/?post_type=product&p=4318"},"modified":"2026-10-31T09:08:47","modified_gmt":"2026-10-31T09:08:47","slug":"suntree-solar-dc-surge-protector-spd-40ka-2-pole-500vdc","status":"publish","type":"product","link":"https:\/\/estrexsolar.co.ke\/?product=suntree-solar-dc-surge-protector-spd-40ka-2-pole-500vdc","title":{"rendered":"Suntree Solar DC Surge Protector (SPD) 40kA 2 Pole 500Vdc"},"content":{"rendered":"
The Suntree Solar DC Surge Protector (SPD) 40kA 2 Pole 500Vdc<\/span>\u00a0is a Type 2 parallel-installed component engineered specifically to safeguard solar photovoltaic (PV) systems, inverters, and DC wiring from transient overvoltages, electrical switching surges, and lightning strikes<\/mark>. By providing a low-impedance path, it diverts harmful excess surge energy safely to the ground before it can reach your solar electronics.\u00a0<\/div>\n
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Suntree Solar DC Surge Protector (SPD) 40kA 2 Pole 500Vdc Core Technical Specifications<\/div>\n

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  • Maximum Continuous Operating Voltage (\\(U_{c}\\) \/ \\(U_{e}\\)):<\/strong> 500V DC<\/strong><\/span><\/li>\n
  • Number of Poles:<\/strong> 2 Pole (2P)<\/strong><\/span><\/li>\n
  • Maximum Discharge Current (\\(I_{max}\\)):<\/strong> 40kA<\/strong> (using an 8\/20\u00b5s wave pulse)<\/span><\/li>\n
  • Nominal Discharge Current (\\(I_{n}\\)):<\/strong> 20kA<\/strong><\/span><\/li>\n
  • Voltage Protection Level (\\(U_{p}\\)):<\/strong> \u2264 2.8kV<\/strong><\/span><\/li>\n
  • Response Time:<\/strong> < 25ns<\/strong><\/span><\/li>\n
  • Mounting Type:<\/strong> 35mm DIN standard guide rail<\/strong><\/span><\/li>\n
  • Enclosure Protection:<\/strong> IP20<\/strong> standard indoor rating<\/span><\/li>\n
  • Certifications:<\/strong> CE<\/strong> and T\u00dcV Rheinland<\/strong><\/span>\u00a0<\/li>\n

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    Suntree Solar DC Surge Protector (SPD) 40kA 2 Pole 500Vdc Key Product Features<\/div>\n

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    • Visual Status Windows:<\/strong> Employs clear mechanical indicator flags where Green indicates the module is healthy<\/strong> and Red indicates module failure<\/strong>, signaling it must be replaced.<\/span>\u00a0<\/li>\n
    • Modular Plug-In Design:<\/strong> The internal protection cartridges (high-energy Metal Oxide Varistors \/ MOVs) feature plug-in clips<\/strong>. When a cartridge burns out (turns red), you can pull it out and replace it without disconnecting the underlying system wiring.<\/span>\u00a0<\/li>\n
    • Built-in Flash Barrier:<\/strong> Integrates physical barriers and heat dissipation holes to prevent arc propagation<\/strong> and fire damage during extreme electrical impacts.<\/span>\u00a0<\/li>\n
    • Thermal Isolation Disconnectors:<\/strong> Disconnects the unit immediately from the circuit if it overheats or reaches its end of life, preventing secondary system short circuits.<\/span>\u00a0<\/li>\n

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      Installation Best Practices<\/div>\n

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      • Parallel Wiring:<\/strong> The device must be wired in parallel<\/strong> across the positive (+) and negative (-) DC lines rather than in series.<\/span><\/li>\n
      • Earthing Connection:<\/strong> The dedicated grounding terminal at the base of the unit must be firmly wired to your main solar grounding busbar<\/strong> using a low-resistance path to guarantee optimal surge discharge.<\/span><\/li>\n
      • Placement Strategy:<\/strong> For comprehensive protection, it is recommended to install SPDs at both ends of the DC power line<\/strong>\u2014one on the solar panel array side (often inside a combiner box) and another close to the inverter DC input side.<\/span><\/li>\n
      • Physical Clearance:<\/strong> Ensure a minimum 10mm safety distance<\/strong> is kept between the SPD and any other grounded components or enclosures to limit heat distribution.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        The Suntree Solar DC Surge Protector (SPD) 40kA 2 Pole 500Vdc\u00a0is a Type 2 parallel-installed component engineered specifically to safeguard solar photovoltaic (PV) systems, inverters, and DC wiring from transient overvoltages, electrical switching surges, and lightning strikes. By providing a low-impedance path, it diverts harmful excess surge energy safely to the ground before it can […]\n","protected":false},"featured_media":4319,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[142],"product_cat":[94],"product_tag":[],"class_list":["post-4318","product","type-product","status-publish","has-post-thumbnail","product_brand-suntree","product_cat-dc-accessories","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/product\/4318","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=4318"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/media\/4319"}],"wp:attachment":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4318"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=4318"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=4318"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=4318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}