SMA DCSPD KIT3-10 Type II Surge Protection Device

SMA Type II DC Surge Protection Device Kit (DCSPD KIT3-10)

The SMA Type II DC Surge Protection Device Kit (MPN: DCSPD KIT3-10) is an internal surge protection accessory engineered for compatible SMA Sunny Tripower solar inverters. It installs directly inside the inverter enclosure to protect the DC inputs against transient overvoltage events caused by lightning strikes or grid switching. This kit provides direct circuit protection for both Input A and Input B tracking channels on the inverter board.

Integrating this protection kit helps prevent costly inverter damage and system downtime in commercial photovoltaic arrays. The unit is rated for systems operating up to 1,000 V DC and meets the IEC/EN 61643-11:2011 standard for low-voltage surge protective devices. It handles a nominal discharge current of 15 kA and a maximum surge current capacity of 40 kA to ensure reliable continuous system operation.

Specifications:

• Manufacturer Part Number: DCSPD KIT3-10
• Manufacturer: SMA
• SPD Type: Type II

Mechanical:

• Application: Photovoltaic / solar inverter DC protection
• Compatible inverter: SMA Sunny Tripower 20000TL / 25000TL
• Maximum inverter DC input voltage: 1,000 V DC
• SPD short-circuit rating: 2,000 A
• Nominal discharge current (8/20 µs): 15 kA
• Maximum discharge current (8/20 µs): 40 kA
• Standard referenced: IEC/EN 61643-11:2011.