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Tomzn 2P 1000V DC SPD Solar Surge Protective Device Arrester

The Tomzn 2P 1000V DC SPD (Surge Protective Device) is an essential lightning and surge protection component engineered to safeguard solar PV arrays, string inverters, and DC combiner boxes from catastrophic transient overvoltages and atmospheric lightning induced surges in Pakistan.

Key Technical Specifications:

• Poles & Voltage: 2-Pole (2P) modular design rated for 1000V DC max continuous operating voltage (Uc).
• Discharge Capacity: Nominal discharge current (In) 20kA, Maximum discharge current (Imax) 40kA.
• Voltage Protection Level: Up ≤ 3.6kV ultra-fast nanosecond response time.
• Visual Status Indication: Green window denotes normal operation; Red window signals cartridge replacement required.
• Pluggable Cartridge: Modular plug-in design allows easy cartridge replacement without disconnecting system wiring.
• Mounting: Standard 35mm DIN Rail installation fits all outdoor IP65 solar combiner boxes and DC distribution panels.