{"id":4323,"date":"2026-10-26T08:56:47","date_gmt":"2026-10-26T08:56:47","guid":{"rendered":"https:\/\/estrexsolar.co.ke\/?post_type=product&p=4323"},"modified":"2026-10-31T08:57:46","modified_gmt":"2026-10-31T08:57:46","slug":"suntree-ac-surge-protector-spd-40ka-4-pole-three-phase","status":"publish","type":"product","link":"https:\/\/estrexsolar.co.ke\/?product=suntree-ac-surge-protector-spd-40ka-4-pole-three-phase","title":{"rendered":"Suntree AC Surge Protector (SPD) 40kA 4 Pole Three Phase"},"content":{"rendered":"
The Suntree AC Surge Protector (SPD) 40kA 4 Pole Three Phase<\/span> is a Type 2 modular surge arrester designed to protect three-phase AC distribution systems, commercial panels, and solar inverter AC output circuits from power surges and transient overvoltages.\u00a0<\/div>\n
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Technical Specifications<\/div>\n

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  • Poles:<\/strong> 4P (3 Phase + Neutral)<\/strong><\/span><\/li>\n
  • SPD Class:<\/strong> Type 2 \/ Class II<\/strong> (suitable for sub-panels and downstream distribution boards)<\/span><\/li>\n
  • Maximum Discharge Current (\\(I_{max}\\)):<\/strong> 40kA<\/strong> (8\/20\u00b5s wave)<\/span><\/li>\n
  • Nominal Discharge Current (\\(I_{n}\\)):<\/strong> 20kA<\/strong> (8\/20\u00b5s wave)<\/span><\/li>\n
  • Maximum Continuous Operating Voltage (\\(U_{c}\\)):<\/strong> 385V AC to 420V AC<\/strong> (system configurations typically cover standard 415V three-phase setups)<\/span><\/li>\n
  • Voltage Protection Level (\\(U_{p}\\)):<\/strong> < 1.8kV<\/strong><\/span><\/li>\n
  • Response Time (\\(t_{A}\\)):<\/strong> < 20ns<\/strong><\/span><\/li>\n
  • Mounting Type:<\/strong> Standard 35mm DIN rail<\/strong><\/span><\/li>\n
  • Ingress Protection:<\/strong> IP20<\/strong><\/span><\/li>\n
  • Working Temperature:<\/strong> -40\u00b0C to +80\u00b0C<\/strong><\/span>\u00a0<\/li>\n

    <\/ul>\n

    <\/div>\n
    Suntree AC Surge Protector (SPD) 40kA 4 Pole Three Phase Key Features<\/div>\n

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    • Pluggable Modular Design:<\/strong> Individual phase or neutral modules can be hot-swapped and replaced seamlessly without removing the entire base or disconnecting the main power.<\/span>\u00a0<\/li>\n
    • Visual Status Windows:<\/strong> Features clear fault-indicator viewports on each module. Green<\/strong> indicates normal working condition, while Red<\/strong> signals that the surge capacity is exhausted and the module must be replaced.<\/span>\u00a0<\/li>\n
    • Thermal Safety Disconnection:<\/strong> Outfitted with an internal thermal trip mechanism that safely isolates the SPD module from the live circuit if it overheats or breaks down under extreme surge conditions.<\/span>\u00a0<\/li>\n
    • Housing Material:<\/strong> Durable, high-grade, V0 flame-retardant thermoplastic designed to prevent fire propagation.<\/span>\u00a0<\/li>\n

      <\/ul>\n

      <\/div>\n
      Suntree AC Surge Protector (SPD) 40kA 4 Pole Three Phase Wiring & Installation Overview<\/div>\n

      <\/p>\n

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      • Parallel Connection:<\/strong> The SPD must be wired in parallel to your main incoming supply lines (after a dedicated backup miniature circuit breaker or fuse disconnect).<\/span><\/li>\n
      • Terminal Connections:<\/strong><\/span>\n
          \n
        • Connect phase lines to the L1, L2, and L3<\/strong> terminals.<\/span><\/li>\n
        • Connect the neutral line to the N<\/strong> terminal.<\/span><\/li>\n
        • Connect the grounding terminal marked PE<\/strong> directly to your distribution board’s main earth bar.<\/span>\u00a0<\/li>\n

          <\/ul>\n

          <\/li>\n

        • Cable Length Rule:<\/strong> Keep all connecting leads (L1, L2, L3, N, PE) as short and straight as possible (under 50 cm total<\/strong>) to minimize inductive voltage drops during a fast-acting surge event.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

          The Suntree AC Surge Protector (SPD) 40kA 4 Pole Three Phase is a Type 2 modular surge arrester designed to protect three-phase AC distribution systems, commercial panels, and solar inverter AC output circuits from power surges and transient overvoltages.\u00a0 Technical Specifications Poles: 4P (3 Phase + Neutral) SPD Class: Type 2 \/ Class II (suitable […]\n","protected":false},"featured_media":4322,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[142],"product_cat":[118],"product_tag":[],"class_list":["post-4323","product","type-product","status-publish","has-post-thumbnail","product_brand-suntree","product_cat-spd","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/product\/4323","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=4323"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=\/wp\/v2\/media\/4322"}],"wp:attachment":[{"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4323"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=4323"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=4323"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/estrexsolar.co.ke\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=4323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}