SMA DC-SPD-KIT4-10 DC Surge Protector for CORE1 Inverters Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: 501-0030 Details SMA, DC Surge Protection Module Kit, 9 Module kit for Core-1 Inverter, DC-SPD-KIT4-10 Optional DC surge protection devices for the SMA CORE1 inverters... Details Back DetailsSMA, DC Surge Protection Module Kit, 9 Module kit for Core-1 Inverter, DC-SPD-KIT4-10Optional DC surge protection devices for the SMA CORE1 inverters.