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DC Surge Protective Device (SPD) A/B Type HKB/HKU-PV40 3P 40kA DC1000V Lightning Arrester - Red=Replace Indicator, CE Certified

DC Surge Protective Device (SPD) A/B Type HKB/HKU-PV40 3P 40kA DC1000V Lightning Arrester - Red=Replace Indicator, CE Certified

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☀️ Ultimate DC Surge Protection for High-Voltage Solar Arrays – Type 1+2 Hybrid

  • Hybrid A/B Type (Type 1+2): Protects against both direct lightning strikes (10/350µs) and switching surges (8/20µs) in one device.

  • 1000V DC Rating: Designed for commercial and utility-scale PV systems up to 1000V.

  • 3-Pole (3P) Configuration: Protects positive (+), negative (-), and ground (PE) – complete isolation for ungrounded arrays.

  • 40kA Surge Capacity: High-energy dissipation for the most demanding installations.

  • Red=Replace Visual Indicator: Green means protected, red means replace – at-a-glance status monitoring.

  • CE Certified: Meets IEC 61643-31 European safety standards for photovoltaic applications.

  • DIN Rail Mount: Easy installation in combiner boxes, inverter enclosures, and DC panels.

Large-scale solar installations face an elevated risk from direct lightning strikes and severe surge events. Standard Type 2 SPDs provide adequate protection for indirect surges, but when your PV array is exposed to direct strikes – common in open fields, rooftops, and high-lightning areas – you need Type 1+2 hybrid protection.

The HEVGKEOU HKB/HKU-PV40 Series is a Type 1+2 (A/B Type) DC Surge Protective Device engineered for high-voltage photovoltaic systems up to 1000V DC. With a 3-pole (3P) configuration, it safeguards both positive and negative conductors while providing a dedicated ground path – essential for ungrounded or floating PV arrays common in modern installations.

Rated at 40kA surge capacity and certified to IEC 61643-31, this advanced SPD combines the high-energy handling of Type 1 (10/350µs waveform for direct lightning) with the fast response of Type 2 (8/20µs waveform for switching surges) – all in a single, compact DIN rail module.

The red=replace visual indicator ensures you always know your protection status, while CE certification guarantees compliance with European safety standards.

Threat Source Consequence
Direct Lightning Strike Strike to array or mounting structure Instant destruction, fire
Nearby Lightning Strike to ground near array Massive induced voltages
Grid Switching Utility operations Transients through inverter
Inverter Switching Internal IGBT switching High-frequency noise
String Faults Arcing, ground faults Overvoltage events

 

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